Hyundai Elantra: "Floating fault"
25.03.2010
Hyundai Elantra
Client: "The machine sometimes doesn't work well"
A "floating" fault is the most difficult to detect.
Sometimes it takes a long time to find it.
I want to bring to your attention an option to search for such a malfunction.
2004 Hyundai Elantra car, G4ED.1.6 engine Gasoline
According to the client, the malfunction sometimes manifested itself, sometimes it didn’t:
“Sometimes when starting off, the car doesn’t seem to move.”
The "Check engine" light came on intermittently, then went off by itself.
There was no system in the occurrence of a malfunction
That is, during the “customer survey”, which is always supposed to be done, there was little information. The only thing: "the malfunction manifests itself haphazardly." Well, at least something...
When the car arrived for repair, the “Check” indicator was still on. We looked at the errors. It turned out that there is an error, there is a fault code: P0172: System too Rich (Fuel Trim).
We see and wonder:
Both long and short FT very big:
LTFT - "minus" 25% STFT – "minus" 20%
For complete clarity, we connect the gas analyzer and see that the mixture is really very rich: CO 9%
then we have: there is a basic start of troubleshooting; The description of the fault code tells you what to look out for.
But in order to initially narrow the troubleshooting area, one would have to see how quickly the “short”, that is, STFT, fills up.
If the "short" one fills up quickly, then let's pay attention to some components, if slowly - to others.
After resetting the error, start the engine. It is striking that the parameters of the fuel correction have returned to normal, the oxygen sensor switches in good faith, the car behaves adequately.
Again we do checks on the spot and on the move, and after a while we pay attention to fuel adjustments.
And we see that STFT and LTFT are the maximum possible, “minus” 25%
This is already "specific". The control system changes the base injection time. And changes it fast and much- in the direction of "depletion" of the mixture. And it is important that such large, one might say "marginal" values have a "short" adjustment. This means that there is “something” that “enriches” the fuel-air mixture as quickly as possible.
After the checks carried out, we stop at the EVAP system.
EVAP - Evaporative Emission Control Gasoline vapor recovery system
The Evaporative Emission System prevents fuel vapors from escaping into the atmosphere from the fuel tank, thereby helping to protect the environment.
The system accumulates fuel vapors accumulating in the fuel system and ensures their removal to the intake pipeline for further combustion in the engine cylinders.
Any EVAP system necessarily includes a special adsorber filled with activated carbon (or other chemical assembly), which collects (accumulates) fuel vapors. The method of removing vapors from the adsorber may vary depending on the design of a particular system on a particular vehicle. The main components of the system:
* carbon filter (adsorber)
* purge valve (valve)
* connecting hoses
The adsorber is connected to the intake manifold through a “purge valve”, which is controlled by a special algorithm by the control unit. When the valve is opened, fuel vapors are discharged into the intake manifold, and mixed with the incoming air, they enter the engine cylinders for further combustion. At idle, with a cold engine, at wide open throttle (WOT), when starting the engine, gasoline vapors are not blown from the canister into the intake manifold ( this algorithm of operation may be different on different car models).
Depending on the design of the self-diagnosis system, EVAP system failures may be recorded as fault codes in the memory of the control unit.
The figure below shows a schematic diagram of the EVAP system used by Hyundai on some vehicles:
ABOUTbOvalues:
1 - Canister (adsorber)
2 - Purge Control Solenoid Valve (PCSV)
3 - Canister Close Valve (CCV)
Can the EVAP system "rich" the fuel-air mixture that much? If it works correctly, then no: in order to bypass for further combustion of the fuel vapor, the control unit simultaneously opens both the Purge Control Solenoid Valve (PCSV) and the Canister Close Valve (CCV), as a result of which the fuel vapors are “diluted” atmospheric air.
But you need to check. We start the test with the Purge Control Solenoid Valve (PCSV) (EVAP canister cleaning solenoid valve).
Find this valve:
 |
 |
Checking "for resistance" showed: "Working".
But despite this (the fact that the valve is “working type” in terms of resistance does not mean anything, agree), remove the valve and continue the checks.
We turn it on / off and soon the valve starts to “fail”: at some point it “freezes”.
Moreover, it “hangs beautifully”: as soon as you click on it with a screwdriver, it closes.
What, "in theory", it turns out, IMHO:
At the moment of "regular" operation, PCSV opens together with CCV. Fuel vapors, diluted with atmospheric air, enter the intake manifold and further into the engine cylinders. When the control unit “understands” that the valves must be closed, it closes them and the “enrichment” of the fuel-air mixture stops. But since PCSV “hangs” with us, it continues to remain open. And the CCV valve is already closed. And it turns out that the PCSV valve passes through itself the maximum amount of fuel vapor NOT diluted with atmospheric air. From this, the fuel adjustment is maximum.
To verify this assumption, we started the engine and waited for the EVAP system to work. The scanner has been connected. Fuel trim readings were minimal. When the EVAP system stopped working, the CCV valve (communication with the atmosphere) closed, and the PCSV valve “hung” again. And we saw on the computer monitor that the readings of fuel adjustments immediately began to grow "in the red." That is, during the “freeze” of the PCSV valve, the most rapid re-enrichment of the fuel-air mixture began to occur.
But as soon as the PCSV valve body was flicked with a screwdriver, it closed, and the fuel trim readings began to decrease.
Conclusion: The PCSV needs to be replaced.
After installing a new valve:
 |
 |
Our client has had no further problems with this issue.
Sulyaev Anton Yurievich
* * * * *
Note : Anton Yuryevich has been engaged in auto-diagnostics for a little more than three months.
Applied abbreviations:
STFT - short term fuel trim
LTFT - long term fuel trim
FT - fuel trim
ANNEX 1
If finances are available, the workshop can purchase a special device that can also check the EVAP system:
The device is called EVAP2 Leak Check And Maybe serve for checks:
* Vacuum and induction leaks.
* Exhaust leaks.
*EGR valve leaks.
* Oil seals and gasket leaks.
* Idle motors and solenoid leaks.
* Brake booster leaks.
* Component testing (radiators, water pumps and valves).
*Under dash leaks.
* Intercooler and turbo charger leaks.
* Wind and water leaks (windows & sunroofs).
APPENDIX 2
Additionally, you can watch videos
(ENGINE )
<МОДЕЛИ С СИСТЕМОЙ OBD-II>
(ENGINE )
<МОДЕЛИ БЕЗ СИСТЕМЫ OBD-II>
(ENGINES 1.8/2.0L I4)
<МОДЕЛИ С СИСТЕМОЙ OBD-II>
NOTE Fault codes given in brackets () are available only on models with an immobilizer.
EEPROM is electrically erasable programmable read-only memory.
(ENGINES)
<МОДЕЛИ БЕЗ СИСТЕМЫ OBD-II>
NOTE EEPROM is Electrically Erasable Programmable Read Only Memory.
MIL - Engine Malfunction Indicator Lamp.
MULTIPLE FUEL INJECTION (MFI) CONTROL SYSTEM
LOCATION OF SYSTEM COMPONENTS
1. Manifold absolute pressure (MAP) sensor
2. Intake manifold air temperature (IAT) sensor
3. Coolant temperature sensor (ECT)
4. Throttle position sensor (TPS)
5. Camshaft position sensor (CMP)
6. Crankshaft Position Sensor (CKP)
7. Heated Oxygen Sensor (HO2S)
8. Nozzle
9. Idle speed control servo (ISA)
10. Vehicle Speed Sensor (VSS)
11. Knock sensor (KS)
12. Starter lock switch
13. Ignition lock
14. Electronic engine control unit
15. Relay for the electromagnetic clutch of the air conditioning compressor
16. Canister purge solenoid valve (PCSV)
17. Engine control relay
18. Ignition coil
19. Standard Diagnostic Connector (DLC)
SYSTEM COMPONENTS
Other on site:
Checking the block of cylinders
PERFORMANCE ORDER After engine dismantling to clear and wash out the block of cylinders, having immersed it in a bathtub with washing solution. Then rinse it with a jet of the same solution under pressure to clean the oil.
Power system, instrument panel
PERFORMANCE ORDER F1 – oil pressure sensor (1.8 bar); F22 - oil pressure sensor (0.3 bar); G – fuel reserve level sensor; G2 - coolant temperature sensor; K1 - control ...
Monthly Maintenance
GENERAL INFORMATION. Monitoring the condition of tires, wheels and checking the air pressure in the tire. Inspect tires for abnormal tread wear and. damage. Also check the condition of the...
Hyundai Elantra: "Floating fault"
25.03.2010
Hyundai Elantra
Client: "The machine sometimes doesn't work well"
A "floating" fault is the most difficult to detect.
Sometimes it takes a long time to find it.
I want to bring to your attention an option to search for such a malfunction.
2004 Hyundai Elantra car, G4ED.1.6 engine Gasoline
According to the client, the malfunction sometimes manifested itself, sometimes it didn’t:
“Sometimes when starting off, the car doesn’t seem to move.”
The "Check engine" light came on intermittently, then went off by itself.
There was no system in the occurrence of a malfunction
That is, during the “customer survey”, which is always supposed to be done, there was little information. The only thing: "the malfunction manifests itself haphazardly." Well, at least something...
When the car arrived for repair, the “Check” indicator was still on. We looked at the errors. It turned out that there is an error, there is a fault code: P0172: System too Rich (Fuel Trim).
We see and wonder:
Both long and short FT very big:
LTFT - "minus" 25% STFT – "minus" 20%
For complete clarity, we connect the gas analyzer and see that the mixture is really very rich: CO 9%
then we have: there is a basic start of troubleshooting; The description of the fault code tells you what to look out for.
But in order to initially narrow the troubleshooting area, one would have to see how quickly the “short”, that is, STFT, fills up.
If the "short" one fills up quickly, then let's pay attention to some components, if slowly - to others.
After resetting the error, start the engine. It is striking that the parameters of the fuel correction have returned to normal, the oxygen sensor switches in good faith, the car behaves adequately.
Again we do checks on the spot and on the move, and after a while we pay attention to fuel adjustments.
And we see that STFT and LTFT are the maximum possible, “minus” 25%
This is already "specific". The control system changes the base injection time. And changes it fast and much- in the direction of "depletion" of the mixture. And it is important that such large, one might say "marginal" values have a "short" adjustment. This means that there is “something” that “enriches” the fuel-air mixture as quickly as possible.
After the checks carried out, we stop at the EVAP system.
EVAP - Evaporative Emission Control Gasoline vapor recovery system
The Evaporative Emission System prevents fuel vapors from escaping into the atmosphere from the fuel tank, thereby helping to protect the environment.
The system accumulates fuel vapors accumulating in the fuel system and ensures their removal to the intake pipeline for further combustion in the engine cylinders.
Any EVAP system necessarily includes a special adsorber filled with activated carbon (or other chemical assembly), which collects (accumulates) fuel vapors. The method of removing vapors from the adsorber may vary depending on the design of a particular system on a particular vehicle. The main components of the system:
* carbon filter (adsorber)
* purge valve (valve)
* connecting hoses
The adsorber is connected to the intake manifold through a “purge valve”, which is controlled by a special algorithm by the control unit. When the valve is opened, fuel vapors are discharged into the intake manifold, and mixed with the incoming air, they enter the engine cylinders for further combustion. At idle, with a cold engine, at wide open throttle (WOT), when starting the engine, gasoline vapors are not blown from the canister into the intake manifold ( this algorithm of operation may be different on different car models).
Depending on the design of the self-diagnosis system, EVAP system failures may be recorded as fault codes in the memory of the control unit.
The figure below shows a schematic diagram of the EVAP system used by Hyundai on some vehicles:
ABOUTbOvalues:
1 - Canister (adsorber)
2 - Purge Control Solenoid Valve (PCSV)
3 - Canister Close Valve (CCV)
Can the EVAP system "rich" the fuel-air mixture that much? If it works correctly, then no: in order to bypass for further combustion of the fuel vapor, the control unit simultaneously opens both the Purge Control Solenoid Valve (PCSV) and the Canister Close Valve (CCV), as a result of which the fuel vapors are “diluted” atmospheric air.
But you need to check. We start the test with the Purge Control Solenoid Valve (PCSV) (EVAP canister cleaning solenoid valve).
Find this valve:
|
|
|
Checking "for resistance" showed: "Working".
But despite this (the fact that the valve is “working type” in terms of resistance does not mean anything, agree), remove the valve and continue the checks.
We turn it on / off and soon the valve starts to “fail”: at some point it “freezes”.
Moreover, it “hangs beautifully”: as soon as you click on it with a screwdriver, it closes.
What, "in theory", it turns out, IMHO:
At the moment of "regular" operation, PCSV opens together with CCV. Fuel vapors, diluted with atmospheric air, enter the intake manifold and further into the engine cylinders. When the control unit “understands” that the valves must be closed, it closes them and the “enrichment” of the fuel-air mixture stops. But since PCSV “hangs” with us, it continues to remain open. And the CCV valve is already closed. And it turns out that the PCSV valve passes through itself the maximum amount of fuel vapor NOT diluted with atmospheric air. From this, the fuel adjustment is maximum.
To verify this assumption, we started the engine and waited for the EVAP system to work. The scanner has been connected. Fuel trim readings were minimal. When the EVAP system stopped working, the CCV valve (communication with the atmosphere) closed, and the PCSV valve “hung” again. And we saw on the computer monitor that the readings of fuel adjustments immediately began to grow "in the red." That is, during the “freeze” of the PCSV valve, the most rapid re-enrichment of the fuel-air mixture began to occur.
But as soon as the PCSV valve body was flicked with a screwdriver, it closed, and the fuel trim readings began to decrease.
Conclusion: The PCSV needs to be replaced.
After installing a new valve:
|
|
|
Our client has had no further problems with this issue.
Sulyaev Anton Yurievich
* * * * *
Note : Anton Yuryevich has been engaged in auto-diagnostics for a little more than three months.
Applied abbreviations:
STFT - short term fuel trim
LTFT - long term fuel trim
FT - fuel trim
ANNEX 1
If finances are available, the workshop can purchase a special device that can also check the EVAP system:
The device is called EVAP2 Leak Check And Maybe serve for checks:
* Vacuum and induction leaks.
* Exhaust leaks.
*EGR valve leaks.
* Oil seals and gasket leaks.
* Idle motors and solenoid leaks.
* Brake booster leaks.
* Component testing (radiators, water pumps and valves).
*Under dash leaks.
* Intercooler and turbo charger leaks.
* Wind and water leaks (windows & sunroofs).
APPENDIX 2
Additionally, you can watch videos
Hyundai Elantra has become a popular car in recent years. Its low cost with good performance properties increased sales several times. Hyundai Elantra is easy to drive, and modern style and elegant design make this car a worthy representative of its class.
- Maintenance
- Diagnostic Trouble Codes (With OBD, Without OBD 1.6L and 1.8L Engines)
- Troubleshooting Examples
Maintenance
Despite the reliability of the car, the possibility of a breakdown cannot be ruled out. It is necessary every 10,000 - 15,000 mileage to undergo maintenance to identify malfunctions in the car.
The most common faults:
- Due to low-quality gasoline, problems arise with fuel injection;
- Every 3-5 years, a radiator needs to be replaced due to its increased sensitivity to substances that are on the road in ice in winter
- If during acceleration vibration is felt in the front of the engine (usually after 100 thousand run), then you need to change its rear support
- Both automatic and manual transmissions of this model are quite reliable and rarely go out of service, but after 150,000 km of run, repair or replacement of the backstage of the manual gearbox lever is required.
- In electrical equipment, the starter or generator sometimes fails.
- Replacement every 70 thousand km rear shock absorbers.
However, in general, this car does not cause problems for the owners, and its repair is quite “budget”.
Changing engine oil and oil filters
You will have to change engine oil and oil filters every 10-15 thousand kilometers, and in urban areas with constant traffic jams, sometimes you have to change the oil and filter earlier.
Gear oil changes less frequently, somewhere in 50-60 thousand km. However, if you have been on the gas for a long time or towed someone else's car for a long distance, you may have to change the gear oil earlier.
All oils are filled only with those brands recommended by the manufacturer.
Engine and chassis diagnostics
Engines for this Hyundai model are installed in the following volumes: 1.5 l, 1.6 l, 1.8 l, 2.0 l.
The main causes of engine malfunctions of these car brands are low-quality gasoline, bad engine oil and high mileage.
If the following symptoms appear, you need to contact a car service and diagnose the Hyundai Elantra engine:
- Loss of power and unstable engine operation;
- The occurrence of knocking and a sharp popping sound during a "cold" start;
- Increased noise.
It is not worth trying to repair the high-tech motor of this model yourself. In order not to harm your car, it is better to immediately contact a specialized center.
All parts of the chassis of this model and suspension are characterized by a fairly long service life. Careful operation allows you not to change the levers and not repair the steering rod for more than 100,000 km, and the anti-roll bars can “pass” more than 50,000 km without problems.
However, the terrible state of Russian roads has a very negative effect on the state of the chassis of this Hyundai model. That is why car owners have to change the components of the walker.
It is recommended to diagnose and repair a car only in specialized technical centers, since an incompetent replacement of these nodes threatens to get into an accident due to a technical malfunction of the Hyundai Elantra.
Diagnostic Trouble Codes
Knowing the Hyundai error codes and their meanings, you can easily make a “diagnosis”, and possibly “cure” the car yourself.
Diagnostic Trouble Codes (1.6L I4) with On-Board Diagnostic (OBD)
| Code | Malfunction |
| P0105 | |
| P0112 | |
| P0113 | |
| P0116 | |
| P0117 | |
| P0118 | |
| P0121 | |
| P0122 | |
| P0123 | |
| P0130 | |
| P0131 | |
| P0132 | |
| P0133 | |
| P0134 | |
| P0135 | |
| P0136 | Damage to the electrical circuit of the lower oxygen sensor |
| P0137 | Low signal level of the lower oxygen sensor |
| P0138 | High signal level of the lower oxygen sensor |
| P0141 | Damage to the electrical circuit of the heated oxygen sensor |
| P0201 | |
| P0202 | |
| P0203 | |
| P0204 | |
| P0230 | |
| P0300 | Random misfires |
| P0301 | |
| P0302 | |
| P0303 | Misfires in the 3rd cylinder |
| P0304 | Misfires in the 4th cylinder |
| P0326 | |
| P0335 | |
| P0336 | |
| P0342 | |
| P0343 | |
| P0422 | Poor Catalytic Converter Efficiency |
| P0444 | Break in the electrical circuit of the activated carbon canister cleaning valve |
| P0445 | Short circuit of the activated carbon canister cleaning valve circuit |
| P0501 | |
| P0506 | |
| P0507 | |
| P0562 | |
| P0563 | |
| P0606 | |
| P1123 | Rich fuel mixture |
| P1124 | lean fuel mixture |
| P1127 | |
| P1128 | |
| P1510 | |
| P1513 | |
| P1552 | |
| P1553 | |
| P1529 | Damage to the transmission control unit |
| P1586 | |
| P1605 | Damage to the electrical circuit of the acceleration sensor |
| P1606 | Incorrect signal received from the acceleration sensor |
| P1611 | MIL warning light input low |
| P1613 | MIL indicator high input |
| P1610 | |
| P1800 | |
| P1801 | |
| P1803 | ECM signal error |
| Code | Malfunction |
| P0105 | Damage to the electrical circuit of the air flow meter sensor |
| P0112 | Low air temperature sensor signal |
| P0113 | High air temperature sensor signal |
| P0116 | Damage to the electrical circuit of the coolant temperature sensor |
| P0117 | Low coolant temperature sensor signal |
| P0118 | High coolant temperature sensor signal |
| P0121 | Damage to the electrical circuit of the throttle position sensor |
| P0122 | Throttle position sensor signal low |
| P0123 | Throttle position sensor signal high |
| P0130 | Damage to the electrical circuit of the oxygen sensor |
| P0131 | Low oxygen sensor signal |
| P0132 | High oxygen sensor signal |
| P0133 | Slow oxygen sensor response |
| P0134 | Poor Oxygen Sensor Performance |
| P0135 | Damage to the electrical circuit of the heated oxygen sensor |
| P0230 | Damage to the electrical circuit of the fuel system |
| P0201 | Damage to the electrical circuit of the fuel injector of cylinder 1 |
| P0202 | Damage to the electrical circuit of the fuel injector of cylinder 2 |
| P0203 | Damage to the electrical circuit of the fuel injector cylinder 3 |
| P0204 | Damage to the electrical circuit of the fuel injector cylinder 4 |
| P0326 | Damage to the electrical circuit of the knock sensor |
| P0335 | Damage to the electrical circuit of the crank angle sensor |
| P0336 | Random malfunctions in the crank angle sensor |
| P0342 | Camshaft position sensor signal low |
| P0343 | High camshaft position sensor signal |
| P0501 | Damage to the electrical circuit of the vehicle speed sensor |
| P0506 | Reduced idle speed |
| P0507 | Increased idle speed |
| P0562 | Reduced voltage in the vehicle's on-board network |
| P0563 | Increased voltage in the vehicle's on-board network |
| P0606 | Internal damage to the ECM |
| P1123 | Rich fuel mixture |
| P1124 | lean fuel mixture |
| P1127 | Prolonged re-enrichment of the fuel mixture |
| P1128 | Prolonged lean fuel mixture |
| P1510 | The valve of the idle system is constantly open due to a short circuit in the electrical supply circuit of the valve coil |
| P1513 | The valve of the idle system is constantly open due to an open circuit in the electrical supply circuit of the valve coil |
| P1552 | The valve of the idle system is constantly closed due to a short circuit in the electrical supply circuit of the valve coil |
| P1553 | The valve of the idle system is constantly closed due to an open circuit in the electrical supply circuit of the valve coil |
| P1586 | Incorrect signal received from the gearbox |
| P1610 | Damage to the SMATRA immobilizer |
| P1800 | Immobilizer antenna damage |
| P1801 | Damage to the immobilizer pulse transceiver |
| P1803 | ECM signal error |
| P1805 | EEPROM corruption |
| P1765 | Damage to the torque reduction circuit |
Diagnostic Trouble Codes (1.8/2.0L I4) with On-Board Diagnostic (OBD)
| Code | Malfunction |
| P0010 | |
| P0030 | Damage to the heater circuit of the oxygen sensor (group 1, sensor 1) |
| P0036 | Damage to the heater circuit of the oxygen sensor (group 1, sensor 2) |
| P0075 | |
| P0076 | Low signal in the intake valve control solenoid circuit (group 1) |
| P0077 | High signal in the intake valve control solenoid circuit (group 1) |
| P0105 | |
| P0106 | Violation of the characteristics of the sensor of absolute air pressure |
| P0110 | |
| P0115 | Damage to the electrical circuit of the coolant temperature sensor |
| P0116 | |
| P0120 | Damage to the electrical circuit of the throttle position sensor |
| P0121 | Violation of the amplitude / characteristics of the throttle position sensor |
| P0125 | Low coolant temperature |
| P0130 | |
| P0132 | |
| P0133 | Slow reaction of the oxygen sensor (group 1, sensor 1) |
| P0139 | Slow reaction of the oxygen sensor (group 1, sensor 2) |
| P0134 | |
| P0135 | |
| P0136 | Damage to the electrical circuit of the lower oxygen sensor (group 1, sensor 2) |
| P0140 | Low efficiency of the oxygen sensor (group 1, sensor 2) |
| P0141 | Damage to the electrical circuit of the heated oxygen sensor (group 1, sensor 2) |
| P0170 | Fuel system damage (Group 1) |
| P0196 | |
| P0197 | |
| P0198 | |
| P0201 | Damage to the electrical circuit of the fuel injector of cylinder 1 |
| P0202 | Damage to the electrical circuit of the fuel injector of cylinder 2 |
| P0203 | Damage to the electrical circuit of the fuel injector cylinder 3 |
| P0204 | Damage to the electrical circuit of the fuel injector cylinder 4 |
| P0230 | Damage to the electrical circuit of the fuel system |
| P0300 | Random misfires |
| P0301 | Misfires in the 1st cylinder |
| P0302 | Misfiring in the 2nd cylinder |
The codes given in brackets () apply only to vehicles equipped with an immobilizer.
Without On-Board Diagnostic (OBD)
| Code | Malfunction |
| P0010 | Camshaft Position Actuator Circuit (Group 1) |
| P0075 | Damage to the intake valve control solenoid circuit (group 1) |
| P0105 | Damage to the electrical circuit of the absolute air pressure sensor |
| P0110 | Faulty air temperature sensor circuit |
| P0115 | Damage to the electrical circuit of the coolant temperature sensor |
| P0116 | Violation of the amplitude / characteristics of the coolant temperature sensor |
| P0120 | Damage to the electrical circuit of the throttle position sensor |
| P0130 | Damage to the electrical circuit of the oxygen sensor (group 1, sensor 2) |
| P0132 | High signal level of the oxygen sensor (group 1, sensor 2) |
| P0134 | Low efficiency of the oxygen sensor (group 1, sensor 1) |
| P0135 | Damage to the electrical circuit of the heated oxygen sensor (group 1, sensor 1) |
| P0196 | Violation of the amplitude / characteristics of the engine oil temperature sensor |
| P0197 | Low signal of the engine oil temperature sensor |
| P0198 | High engine oil temperature sensor signal |
| P0201 | Damage to the electrical circuit of the fuel injector of cylinder 1 |
| P0202 | Damage to the electrical circuit of the fuel injector of cylinder 2 |
| P0203 | Damage to the electrical circuit of the fuel injector cylinder 3 |
| P0204 | Damage to the electrical circuit of the fuel injector cylinder 4 |
| P0230 | Damage to the electrical circuit of the fuel system |
| P0325 | Damage to the electrical circuit of the knock sensor 1 |
| P0335 | Damage to the electrical circuit of the crank angle sensor |
| P0340 | Damage to the electrical circuit of the camshaft position (CMP) sensor |
| P0443 | Damage to the electrical circuit of the control valve of the evaporative emission system |
| P0501 | Violation of the amplitude / characteristics of the vehicle speed sensor |
| P0560 | Violations in the on-board network of the car |
| P0605 | ECM Self Test Violations |
| P1515 | Incorrect idle control valve control signal (Coil 1) |
| P1516 | Incorrect idle control valve control signal (Coil 2) |
| P1602 | Sequential loss of communication with the transmission control unit (TCU) |
| P1610 | Disruption of communication with the anti-theft system |
| P1800 | Damage to the Smatra immobilizer antenna |
| P1801 | Damage to the impulse transceiver of the Smatra immobilizer |
| P1803 | Missing request from the anti-theft system |
| P1805 | Incompatible data from anti-theft system |
Troubleshooting Examples
for engine
- Connect the GDS scanner and select the "DTC Analysis" mode (Analysis of fault codes)
- To view DTC information, select DTC Status from the menu bar.
- Verify that the DTC Readiness Flag parameter is set to COMPLETED. If this is not the case, it is necessary to drive a certain distance under the conditions specified in the “saved frame” data or under the specified conditions for displaying DTCs.
- Read the value of the "DTC Status" parameter.
- Does this parameter display "History(Not Present) fault"?
For ventilation system
Fault B1205 Air Mix Potentiometer Shorted (High)–Passenger
Checking actuators
- Select the current data parameter "Air Mix Door Potentiometer-Passenger" on the scanner.
- Perform the Passenger Side Air Mix Damper Activation Test - 0%/50%/100%. When performing this procedure, make sure that the signal from the potentiometer changes and is close to the values indicated in the list of elements.
- Specifications: Check that the signal from the air mixing damper potentiometer for the selected mode is close to the value indicated in the list of procedure elements.
- Does the current value match the one specified in the list of procedure elements (for each element)?
Error B1282 Humidity SensOpen (High) - AUTO Defog
- Connect the scanner to the diagnostic socket.
- Start the engine and warm it up to operating temperature.
- Check the value of the "Auto defogger humidity sensor" parameter on the scanner.
- Is the automatic demist sensor OK?
Rice. If a DTC related to the automatic windshield defroster sensor is stored, the A/C ECU assumes humidity is 0%.
Airbags and seat belts
B132900 FIS(Front Impact Sensor)-(Driver) Communication Error
- With the ignition switch in the ON position and the engine off, select the "Diagnostic Trouble Codes (DTC)" mode (? Trouble Codes).
- In this mode, you can check for the presence of fault codes.
- Erase trouble codes with a scanner.
- Does this DTC present a problem?
B147400 Inflatable accessory air Cushion Front-(Driver) Resistance Too Low
- Turn the ignition key to the OFF position and connect the scanner.
- With the ignition key in the ON position and the engine off, select the "Current Data" mode (? Current data).
- Driver CAB circuit resistance can be checked in the Curtain airbag front-Driver resistance parameter of the scanner.
< сопротивление цепи CAB водителя < 6,7 Ом
Standard value: In the event of an open in the driver CAB circuit: FAIL
In the event of a short circuit to the battery in the driver's CAB circuit: FAIL (FAIL)
In the event of a short to ground on the driver CAB circuit: FAIL
Specifications: 1.1 ohm< сопротивление цепи CAB водителя < 6,7 Ом
Fig. Data in good condition
| YES | There are no DTCs, or a code is displayed with the label “H” (historical), indicating that the fault is intermittent and caused by poor contact in the wiring connector on the device and / or SRSCM side, or it was resolved without subsequently erasing the SRSCM memory. Carefully inspect the shunt bar/shunt bar release stem for looseness, bending, corrosion, contamination, wear, or damage. Repair or replace and go to the Confirmation of Correct Repair procedure. |
| NO | Go to the Check Harness procedure. |
Body Control - Body Control Module
B1602 CAN error
CONTROL OF SCANNER DATA
- Connect GDS.
B1214 Rear Left Sens Fault
CONTROL OF SCANNER DATA
- Connect GDS.
- Ignition key in "ON" position, engine not running
- Enter the "DTC Analysis" mode (Analysis of trouble codes).
- After erasing fault codes.
- Are the same codes displayed again?
Body Control - Cluster Module
B1603 CAN Communication Link Off
- Connect GDS.
- Ignition key in "ON" position, engine not running
- Enter the "DTC Analysis" mode (Analysis of trouble codes).
- Clear the trouble codes and drive the vehicle under the specified conditions for displaying the trouble codes (see the "Conditions for detecting trouble codes" table).
- Are the same codes displayed again?
Body Control - Smart Junction Box
B2521 Rear right turn signal open circuit
Data analysis on the GDS scanner
- Connect GDS.
- Ignition key in "ON" position, engine not running
- Enter the "DTC Analysis" mode (Analysis of trouble codes).
- Clear the trouble codes and drive the vehicle under the specified conditions for displaying the trouble codes (see the "Conditions for detecting trouble codes" table).
- Are the same codes displayed again?
Brake system
C1202 Wheel Speed Sensor Front-LH Faulty/No Signal
- Turn the ignition key to the "ON" position.
- Connect the GDS scanner to the diagnostic socket (DLC).
- Drive at least 50 km/h (31.1 mph) in gear.
- Check on the GDS scanner the value of the parameter "WHEEL SPD SENSOR-FL" (front left wheel speed sensor). Specifications: Compare the obtained value with other parameters related to the wheel speed sensor. If they match, the sensor is good.
- Does the displayed parameter match the specifications?
Checking the right direction indicator
- Turn the ignition key to the "OFF" position and connect the GDS scanner.
- Ignition key in "ON" position, engine not running
- Select "Actuation Test" mode.
C1283 Vehicle rotation sensor around vert. axes and transverse acceleration - Signal
- Global Diagnostic System (GDS) data control
- Ignition on
- Keep the vehicle stationary.
- Check the "Lateral G Sensor" (lateral acceleration sensor), "Yaw Rate Sensor" (yaw sensor) parameters on the GDS scanner.
- Does the displayed parameter match the specifications?
C2112 Electronic Relay Error
- Connect the GDS to the Data Link Connector (DLC).
- Ignition on
- Select the "Actuation Test" mode in the GDS.
- Check the working condition of all valves with the activation test. Specifications: In the normal state, the sound of operation is heard.
- Are the valves working properly?
Immobilizer
P1610 EMS without immobilizer option connected to immobilizer
CONTROL OF SCANNER DATA. Status check.
- 1 Ignition on, engine not running.
- 2 Check the scanner for the PCM/ECM Status parameter. Specifications: "LEARNT" (Registered)
- Has the PCM/ECM been registered?
The picture shows that three keys are programmed and that the ECM, the key installed in the ignition lock and the SMARTRA3 unit are registered
If only the ECM is replaced and an existing key and SMARTRA3 unit are used, after replacing with an unprogrammed or "neutral" ECM, it is possible to reprogram using a scanner in key learning mode.
Registration of the SMARTRA3 unit and keys is possible only if the vehicle's PIN code is entered.
Steering
C1261 Wheel Angle Sensor - Not Calibrated - Troubleshooting Using Scanner
Calibrate the steering angle sensor.
- The ignition is ON and the engine is NOT RUNNING.
- Set the wheels straight.
- Connect the scanner to the Data Link Connector (DLC).
- Calibrate the steering angle sensor. (rice)
- Go to the "Check Component" procedure.
- Do any diagnostic trouble codes appear?
C1622 EMS invalid vehicle speed
- Connect the scanner to the diagnostic socket.
- Check if there is a logged DTC on the VDC side.
- Check first for ESC DTCs on the ESC side and make sure they can be erased.
- If there are no DTCs, select the "Wheel Speed sensor" option on the ESC side.
- Check if the displayed wheel speed value changes while driving. Check if the displayed wheel speed value changes with speed.
- 6 Does the parameter value match the specifications?
