C1234

C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION

When Monitored:

During the Drive Test.

Set Condition:

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






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 DTC's.
With the scan tool, read and record Freeze Frame information.
Perform ECU initialization with drive test.
Start the engine.
With the scan tool, read and record DTC's.

Does the scan tool display: C1234-DRIVE TEST: SENSOR CLUSTER INSTALLATION?

Yes

- Go To 2

No

- Refer to the INTERMITTENT CONDITION diagnostic procedure.
- Perform ABS VERIFICATION TEST - VER 1.

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.

No

- Go To 3

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

Replace the Dynamics Sensor.
Perform ABS VERIFICATION TEST VER 1.

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.

No

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