C1234

C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
During the Drive Test.

- Set Condition:
If the Anti-Lock Brakes Module detects implausible Dynamics Sensor data.





Diagnostic Test

1. CHECK FOR A DTC C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION
NOTE: This DTC must be active for the results of this test to be valid. If present, diagnose and repair all Dynamics Sensor (Sensor Cluster) codes before diagnosing this DTC.

Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
Perform ECU initialization with drive test. REFER TO ABS VERIFICATION TEST. ABS Verification Test
Start the engine.
With the scan tool, read and record DTCs.
Does the scan tool display: C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION?

Yes

- Go To 2

No

- Perform the ABS Intermittent Condition diagnostic procedure.
- REFER TO the ABS-INTERMITTENT CONDITION TEST. ABS Intermittent Condition Test

2. CHECK THE DYNAMICS SENSOR INSTALLATION

NOTE: Dynamics Sensor installation and mounting bolt torque is crucial for proper operation.

Turn the ignition off.
Check the Dynamics Sensor for damaged, modified, and bent mounting brackets.
Check the Dynamics Sensor mounting bolts for a loose or over tightened condition.
Were any problems found?

Yes

- Repair as necessary.
- PERFORM ABS VERIFICATION TEST. ABS Verification Test

No

- Go To 3

3. REPLACE DYNAMICS SENSOR & VERIFY IF DTC IS STILL ACTIVE
Replace the Dynamics Sensor. PERFORM ABS VERIFICATION TEST. ABS Verification Test

WARNING: Ensure brake capability is available before road testing.

Park the vehicle.
With the scan tool, read ABS DTCs.
Does this DTC reset?

Yes

- Replace the Anti-Lock Brakes Module.
- PERFORM ABS VERIFICATION TEST. ABS Verification Test

No

- Test complete.
- PERFORM ABS VERIFICATION TEST. ABS Verification Test