C1234

C1234-00-DRIVE TEST: SENSOR CLUSTER INSTALLATION

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

NOTE: The Electronic Stability Control (ESC) may also be referred to as Electronic Stability Program (ESP) depending on the vehicle model year and configuration. Certain components may also reference ESP, ESC, or use the traction control symbol.

- When Monitored:
During the Drive Test.

- Set Condition:
If the Anti-Lock Brake System (ABS) Module detects implausible Dynamics Sensor data during an ABS verification drive test.





1. CHECK FOR A DTC C1234-00-DRIVE TEST: SENSOR CLUSTER INSTALLATION

NOTE: This DTC must be active for the results of this test to be valid.

1. Turn the ignition on.
2. With the scan tool, read and record DTCs.
3. With the scan tool, read and record Freeze Frame information.
4. Perform the ECU initialization with drive test. Perform the ABS VERIFICATION TEST. ABS Verification Test.
5. Start the engine.
6. With the scan tool, read and record DTCs.

Does the scan tool display: C1234-00-DRIVE TEST: SENSOR CLUSTER INSTALLATION?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.

2. CHECK THE DYNAMICS SENSOR INSTALLATION

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

1. Turn the ignition off.
2. Check the Dynamics Sensor for damaged, modified, and bent mounting brackets.
3. Check the Dynamics Sensor mounting bolts for a loose or over tightened condition.

Were any problems found?

Yes

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

No

- Go To 3

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

WARNING: Make sure brake capability is available before road testing.

2. Park the vehicle.
3. With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

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

No

- Test complete.