C123B

C123B - ESP SYSTEM CONTROL TOO LONG






For a complete wiring diagram Refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
When the Anti-Lock Brake Module indicates ESP control lasting longer the 10 seconds.






1. CHECK FOR A DTC C123B-ESP SYSTEM CONTROL TOO LONG

NOTE: If other DTCs are set they must be repaired before continuing. This DTC must be active for the results of this test to be valid and this DTC may set while driving under excessive driving conditions.

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 - VER 1.

NOTE: Drive test must be performed correctly for ECU to initialize.

5. Cycle the ignition switch from off to on.
6. With the scan tool, read and record DTCs.

Does the scan tool display: C123B-ESP SYSTEM CONTROL TOO LONG?

Yes
- Go To 2

No
- Refer to the INTERMITTENT CONDITION diagnostic procedure.
- Perform ABS VERIFICATION TEST - VER 1.

2. CHECK HYDRAULIC SYSTEM AND BRAKE SYSTEM COMPONENT INSTALLATION AND FUNCTION

1. Verify that the Anti-Lock Brakes Module and Hydraulic Control Unit are properly installed.
2. Verify that the hydraulic system is properly filled and bled.
3. Verify that the brake system components are installed and functioning properly.

Were any problems found?

Yes
- Repair as necessary.
- Perform ABS VERIFICATION TEST - VER 1.

No
- Go To 3

3. REPLACE THE DYNAMICS SENSOR AND VERIFY IF THE DTC IS STILL ACTIVE

1. Replace the Dynamics Sensor in accordance with the Service Information.
2. Perform ABS VERIFICATION TEST - VER 1.
3. Connect all previously disconnected components and connectors.
4. Turn the ignition on.
5. With the scan tool, erase ABS DTCs.
6. Cycle the ignition switch.

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

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

Does this DTC reset?

Yes
- Replace the Integrated Control Module in accordance with the Service Information.
- Perform ABS VERIFICATION TEST - VER 1.

No
- Test complete.