Volvo C1194 ABS Outlet Valve Coil LF Circuit Failure

Description:

OBD-II Trouble Code Description for C1194 Volvo

ABS outlet valve coil LF circuit failure

OBD-II Trouble Code Description for C1194 Volvo

DSC continuous operation fault

What does this mean?

OBD2 Code C1194 Volvo 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 Volvo
? 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 VolvoON

ACTION Volvo

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDE VolvoD
???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 VolvoY
???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 VolvoON IS IN ABS WHEEL SPEED SIGNALS OR ELSEWHERE
???Access the following ABS wheel speed sensor (DSC) related PIDs using the M-MDS.
¨D??LF_WSPD
¨D??LR_WSPD
¨D??RF_WSPD
¨D??RR_WSPD
???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 VolvoON IS IN COMBI VolvoNED SENSOR SIGNALS OR ELSEWHERE
???Access the following combined sensors (DSC) related PIDs using the M-MDS.
¨D??YAW_RATE
¨D??LAT_ACC
???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 VolvoON IS IN STEERING ANGLE SIGNAL OR ELSEWHERE
???Access the following steering angle sensor (DSC) related PID using the M-MDS.
¨D??SWA_POS
???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 Volvo TROUBLES VolvoHOOTING IS COMPL VolvoETED
???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 VolvoDURE
???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 Volvo:

2013 Volvo V40,2012 Volvo XC60,2011 Volvo XC90,2011 Volvo V60,2011 Volvo S60,2011 Volvo C30,2010 Volvo S80L,2010 Volvo S80,2010 Volvo C70,2010 Volvo C30,2009 Volvo XC60,2009 Volvo V50,2009 Volvo S60,2009 Volvo S40,2009 Volvo C30,2008 Volvo XC70,2008 Volvo V70,2008 Volvo V50,2008 Volvo S40,2007 Volvo V70,2007 Volvo S80,2007 Volvo S60,2007 Volvo C70,2007 Volvo C30,2006 Volvo XC90,2006 Volvo S80,2006 Volvo C70,2005 Volvo V50,2005 Volvo S60,2004 Volvo XC90,2004 Volvo V70,2004 Volvo V50,2004 Volvo V40,2004 Volvo S40,2003 Volvo V70 R,2003 Volvo S80,2003 Volvo S60 R

Note:

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