C1086

C1086-ABS SYSTEM CONTROL TOO LONG



- When Monitored:
With the ignition on.

- Set Condition:
When the Anti-Lock Brake Module receives 5 seconds of dump activation without wheel speed recovery.





1. CHECK FOR ACTIVE DTC

NOTE: Repair all other DTCs first.

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, erase DTCs.
4. Depress and release the brake pedal.
5. With the scan tool, read and record DTCs.

Does the scan tool display: C1086-ABS SYSTEM CONTROL TOO LONG?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

2. CHECK FOR AIR IN BRAKE SYSTEM AND WORN MECHANICAL COMPONENTS

NOTE: Visually inspect for worn brake linings, undersized rotors, binding or frozen calipers. Repair as necessary.

NOTE: Before continuing the brake system must be bled to verify there is no air in the brake system.

Were any problems found?

Yes

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

No

- Replace the Hydraulic Control Unit.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.