DTC 11

Code 11: ABS Warning Lamp Circuit Malfunction.:

DTC 11 ABS Warning Lamp Circuit Malfunction:

Circuit Description:
This DTC checks the state of the amber ABS warning lamp to identify a situation in which the driver could not be alerted to a system malfunction. Due to an integral lamp driver module within the instrument panel cluster, the EBCM must provide a ground to turn the amber ABS warning lamp "OFF."

DTC Will Set When:
DTC 11 can only be set during the three second bulb check or when the lamp is commanded "ON." If the EBCM cannot control the amber ABS warning lamp for two seconds, a malfunction exists.

Action Taken:
A malfunction DTC is stored; however, ABS is not disabled.

DTC Chart Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Determines if the ABS warning lamp can be properly controlled.
2. Determines if the ABS warning lamp is "ON" constantly.
3. Checks for other DTCs which could turn "ON" the ABS warning lamp.
4. Determines if the ABS warning lamp can be turned "OFF" manually.
5. Checks the integrity of the ABS warning lamp circuitry.
6. Checks for a short to voltage on the ABS warning lamp circuitry.
7. Determines if a malfunctioning EBCM is the cause of DTC 11.
8. Verifies that the other I/P indicator lamps function properly.
9. Determines if the ABS warning lamp can be turned "ON" manually.
10. Checks for a short to ground in the ABS warning lamp circuitry.
11. Verifies condition of the 10 amp "GAGES" Fuse 9.
12. Determines if DTC 11 was set due to an EBCM malfunction.

Diagnostic Aids:
An intermittent malfunction may be caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation.

The lamp test function of the Tech 1 may be used to command the lamp "ON" while looking for an intermittent malfunction in the ABS warning lamp circuitry.

The frequency of the malfunction can be checked by using the enhanced diagnostic function of the Tech 1.

Any circuitry that is suspected of causing the intermittent complaint should be thoroughly checked for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wiring connections or physical damage to the wiring harness.