C123C

C123C-DYNAMICS SENSOR MOUNTING/INSTALLATION PERFORMANCE







- When Monitored:
After initialization and no under voltage condition.

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





1. VERIFY DTC IS ACTIVE

NOTE: If present, diagnose and repair DTC C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW or DTC C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH before diagnosing this DTC.

1. Turn the ignition on.
2. With the scan tool, read and record ABS DTCs.
3. With the scan tool, read and record Environmental Data (EV Data).
4. With the scan tool, erase ABS DTCs.
5. Cycle the ignition switch.

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

6. Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 20 km/h (6 and 12 mph).
7. Park the vehicle.
8. With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

- Go To 2

No

- Perform 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 to ensure properly oriented in vehicle with connector rearward in vehicle behind the park brake sled on center tunnel.
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. INSPECT RELATED WIRING HARNESS, TERMINALS, AND CONNECTORS
1. Visually inspect the related wiring harness. Look for any pinched, chafed, pierced, and partially broken wires.
2. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, and corroded terminals.

Were any problems found?

Yes

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

No

- Go To 4

4. REPLACE DYNAMICS SENSOR AND VERIFY IF DTC IS STILL ACTIVE
1. Replace the Dynamics Sensor. Perform ABS VERIFICATION TEST. ABS Verification Test.
2. Turn the ignition on.
3. With the scan tool, erase ABS DTCs.
4. Cycle the ignition switch.

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

5. Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 25 km/h (6 and 15 mph).
6. Park the vehicle.
7. 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.