C1218

C1218-4B-VALVES ACTUATED TOO LONG BY TESTER - OVER TEMPERATURE

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

- When Monitored:
With the ignition on.

- Set Condition:
When the Anti-lock Brake System (ABS) Module calculated thermal model has determined that there has been excessive system activation.





1. VERIFY THE DTC IS ACTIVE

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

1. Perform any Technical Service Bulletins (TSBs) that may apply.
2. Ignition on, engine not running.
3. With the scan tool, read and record DTCs.
4. Using the scan tool, read and record Environmental Data.
5. With the scan tool, record and erase DTCs.
6. With the scan tool, read DTCs.

Is the DTC active at this time?

Yes

- Go To 2

No

- Perform the ABS-INTERMITTENT CONDITION TEST. ABS Intermittent Condition Test.

2. ANTI-LOCK BRAKE SYSTEM (ABS)

NOTE: Check with customer on driving terrain (e.g. mud, snow, ice) for set condition.

1. Visually inspect the ABS Module wiring.
2. Visually inspect the braking system.

Were any problems found?

Yes

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

No

- Replace the Hydraulic Control Unit (HCU). Hydraulic Control unit (HCU) - Removal.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.