C1234

C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION

For a complete wiring diagram Refer to Diagram/Electrical. Electrical Diagrams

- 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.

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 Perform ABS VERIFICATION TEST - VER 1. Verification Tests

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

- Refer to the INTERMITTENT CONDITION diagnostic procedure. Intermittent Condition
- Perform ABS VERIFICATION TEST - VER 1. Verification Tests

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 - VER 1. Verification Tests

No

- Go To 3

3. REPLACE DYNAMICS SENSOR & VERIFY IF DTC IS STILL ACTIVE

Replace the Dynamics Sensor. Perform ABS VERIFICATION TEST - VER 1. Verification Tests

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 - VER 1. Verification Tests

No

- Test complete.
- Perform ABS VERIFICATION TEST - VER 1. Verification Tests