C123B

C123B-ESP SYSTEM CONTROL TOO LONG

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:
With the ignition on.

- Set Condition:
When the Anti-Lock Brake System (ABS) Module indicates excessive valve control lasting longer the 15 seconds.





1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

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. Using the scan tool, read and record ABS DTCs.
3. Using the scan tool, read and record Environmental Data (EV Data).
4. Using 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/hr (6 and 12 m.p.h.).
7. Park the vehicle.
8. Using the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

- Go To 2

No

- Perform the ABS Intermittent Condition diagnostic procedure ABS Intermittent Condition Test.

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 the ABS VERIFICATION TEST. ABS Verification Test.

No

- Replace the Dynamics Sensor.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.