Description
OBD-II Trouble Code Description for C1194 Hummer
ABS outlet valve coil LF circuit failure
Hummer C1194 ABS Outlet Valve Coil LF Circuit Failure
OBD-II Trouble Code Description for C1194 Hummer
DSC continuous operation fault
What does this mean?
OBD2 Code C1194 Hummer definition:
? The PCM receives DSC operation signals from DSC CM while the engine switch is turned to the ON position. If the PCM receives DSC operation signals for longer than the specified time, the PCM determines that the DSC is operating continuously. Note ? The DSC CM stops operating itself for protection heat to the solenoid and/or motor (built in DSC HU) if the DSC operates for a long time.
Causes
Possible causes of OBD code C1194 Hummer
? Communication error between DSC CM and PCM ? DSC CM does not determine vehicle conditions correctly. ¨D DSC CM malfunction ¨D DSC related sensor malfunction ? The vehicle runs under the road conditions in which DSC operates for a long time. ? PCM malfunction
Possible Solutions
Diagnostic procedure
|
STEP |
INSPECTI HummerON |
ACTION Hummer |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDE HummerD
???Has the FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
|
||
|
2
|
VERIFY RELATED REPAIR INFORMATION AVAILABILIT HummerY
???Verify related service repair information availability.
???Is any related repair information available?
|
Yes
|
Perform repair or diagnosis according to the available repair information.
If the vehicle is not repaired, go to the next step.
|
|
No
|
Go to the next step.
|
||
|
3
|
VERIFY DSC CM DTC IS RETRIEVED
???Retrieve the DSC CM DTC using the M-MDS.
???Is any DSC CM DTC retrieved?
|
Yes
|
Go to the applicable DTC troubleshooting procedure.
|
|
No
|
Go to the next step.
|
||
|
4
|
INSPECT IF MALFUNCTI HummerON IS IN ABS WHEEL SPEED SIGNALS OR ELSEWHERE
???Access the following ABS wheel speed sensor (DSC) related PIDs using the M-MDS.
???Drive the vehicle on a straight and flat road.
???Are there almost the same as the PIDs value of four wheels?
|
Yes
|
Go to the next step.
|
|
No
|
Inspect the ABS wheel speed sensor, sensor rotor and related wiring harnesses.
Service as necessary.
Then go to Step 7.
|
||
|
5
|
INSPECT IF MALFUNCTI HummerON IS IN COMBI HummerNED SENSOR SIGNALS OR ELSEWHERE
???Access the following combined sensors (DSC) related PIDs using the M-MDS.
???Drive the vehicle on a straight and flat road.
???Are the PIDs values of each combined sensor signal correct?
|
Yes
|
Go to the next step.
|
|
No
|
Inspect the combined sensor and related wiring harnesses.
Service as necessary.
Then go to Step 7.
|
||
|
6
|
INSPECT WHERE MALFUNCTI HummerON IS IN STEERING ANGLE SIGNAL OR ELSEWHERE
???Access the following steering angle sensor (DSC) related PID using the M-MDS.
???Drive the vehicle on a straight and flat road.
???Is the PID value correct?
|
Yes
|
Go to the next step.
|
|
No
|
Inspect the steering angle sensor and related wiring harnesses.
Service if necessary.
Then go to the next step.
|
||
|
7
|
VERIFY THAT DTC C1194 Hummer TROUBLES HummerHOOTING IS COMPL HummerETED
???Make sure to reconnect all disconnected connectors.
???Clear the DTC from the PCM memory using the M-MDS.
???Run the vehicle under the FREEZE FRAME DATA stored condition.
???Is the same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
8
|
VERIFY AFTER REPAIR PROCE HummerDURE
???Perform the after repair procedure.
???Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
|
|
No
|
DTC troubleshooting completed.
|
||
The OBD2 Code Information Be Applicable For Hummer:
2009 Hummer H3T Alpha,2008 Hummer HX Concept,2008 Hummer H3 Wagon Concept,2008 Hummer H3 Alpha,2008 Hummer H2,2007 Hummer H3 Open Top,2007 Hummer H3X,2007 Hummer H3R Off Road Concept,2007 Hummer H2 Safari Concept,2006 Hummer H3,2006 Hummer H2 SUT Limited Edition,2006 Hummer H1 Alpha,2005 Hummer H3 Street,2005 Hummer H2 SUT,2004 Hummer H2 SUT Concept,2004 Hummer H2H Hydrogen Concept,2004 Hummer H2,2004 Hummer H1,2003 Hummer Humvee Military Vehicle,2003 Hummer H3T Concept,2003 Hummer H2 with GM Accessories,2003 Hummer H2 SUV,2003 Hummer H2 SUT Dirt Sport Concept,2003 Hummer H1,2003 Hummer Bike,2002 Hummer H2 SUV Concept,2002 Hummer H1 10th Anniversary Edition,2002 Hummer H1,2001 Hummer H1 Alpha Concept
Note:
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