C1234

C1234-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.





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.

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 ECU initialization with drive test. Refer to Perform 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-DRIVE TEST: SENSOR CLUSTER INSTALLATION?

Yes

- Go To 2

No

- Perform 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.

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 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 ABS VERIFICATION TEST - VER 1. 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 Brakes Module.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

No

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