C1219

C1219-STEERING ANGLE SENSOR ERRATIC PERFORMANCE





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
When the Anti-Lock Brake (ABS) Module detects too rapid of a change in the Steering Angle Sensor.





1. CHECK FOR A DTC C1219-STEERING ANGLE SENSOR ERRATIC PERFORMANCE

NOTE: This DTC must be active for the results of this test to be valid. Repair all other Steering Angle Sensor codes before proceeding.

1. Ignition on, engine not running.
2. With the scan tool, read and record DTCs.
3. With the scan tool, read and record Freeze Frame information.
4. With the scan tool, erase DTCs.
5. Cycle the ignition switch from off to on.
6. With the scan tool, read and record DTCs.

Does the scan tool display: C1219-Steering Angle Sensor Erratic Performance?

Yes

- Go To 2

No

- Perform the ABS-INTERMITTENT CONDITION TEST. ABS Intermittent Condition Test.

2. CHECK FOR STEERING ANGLE SENSOR ERRATIC SIGNAL
1. With the scan tool, graph Steering Angle while turning the steering wheel from lock to lock.

Is Steering Angle Signal erratic?

Yes

- Replace the Clockspring (SAS).
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 3

3. CHECK THE TERMINALS/CONNECTORS/WIRING HARNESS FOR DAMAGE

WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

NOTE: Proper Clockspring (SAS) installation is crucial for proper operation.

1. Check the Clockspring (SAS) installation.
2. Check all related wiring for bruised, chafed, pierced, or partially broken wires.
3. Check all related connectors for broken, bent, pushed out, or corroded terminals.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 4

4. CHECK THE VOLTAGE ON THE (F943) FUSED B(+) CIRCUIT




1. Turn the ignition off to the lock position.
2. Disconnect the Clockspring C3 (SAS) harness connector.
3. Ignition on, engine not running.
4. Measure the voltage of the (F943) Fused B(+) circuit and ground.

Is the voltage above 10 volts?

Yes

- Go To 5

No

- Repair the (F943) Fused B(+) circuit for an open. Inspect the related fuse. If the fuse is open, check the circuit for a short to ground.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

5. CHECK THE RESISTANCE OF THE (G211) GROUND CIRCUIT




1. Turn the ignition off.
2. Measure the resistance between the (G211) Ground circuit and ground.

Is the resistance below 5.0 Ohms?

Yes

- Replace Anti-Lock Brake System (ABS) Module.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Repair the (G211) Ground circuit for an open.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.