2007 Compass Patriot MK Factory Service Manual 8 - ELECTRICAL

*NO RESPONSE FROM THE STEERING ANGLE SENSOR (SAS)





For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
(F202) IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED
 
(Z936) (Z937) GROUND CIRCUITS OPEN
 
(D265) CAN C BUS (+) CIRCUIT OPEN
 
(D264) CAN C BUS (-) CIRCUIT OPEN
 
STEERING ANGLE SENSOR
 




Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.


Turn the ignition on.

NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.


With the scan tool, select ECU View.

NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.



Does the scan tool display a red X next to the sensor?

Yes


No

2. (F202) IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED



Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the (F202) Ignition Switch Output circuit.

Does the test light illuminate brightly?

Yes


No

3. (Z936) or (Z937) GROUND CIRCUITS OPEN



Turn the ignition off.
Using a 12-volt test light connected to 12-volts, check the (Z936) or (Z937) ground circuits.

Does the test light illuminate brightly?

Yes


No

4. (D265) CAN C BUS (+) CIRCUIT OPEN



Disconnect the TIPM C2 harness connector.
Measure the resistance of the (D265) CAN C Bus (+) circuit between the TIPM C2 harness connector and the Steering Angle Sensor connector.

Is resistance below 5.0 ohms?

Yes


No

5. (D264) CAN C BUS (-) CIRCUIT OPEN



Measure the resistance of the (D264) CAN C Bus (-) circuit between the TIPM C2 harness connector and the Steering Angle Sensor connector.

Is resistance below 5.0 ohms?

Yes


No