Code A011 - Abs Warning Light Circuit Open Or Shorted To Ground: Notes

Light driver module turns on ABS warning light unless Electronic Brake Control Module (EBCM) provides a ground circuit to turn it off. Because of light driver module internal circuitry, only external faults can be detected. ABS warning light itself cannot be diagnosed, only control line to EBCM can be diagnosed. If circuit No. 1290 (Dark Blue wire) becomes open, ABS light will always be on due to loss of ground at light driver module. If control circuit is shorted to ground, ABS light will remain off.

1. This step checks if ABS warning light is functioning properly. Normal operation would indicate no problem is present.
2. This step determines if any other codes are present, or if Code A018 is falsely set.
3. This step verifies circuit from EBCM to light driver module is complete.
4. This step verifies ignition circuit to light driver module is okay. An open GAUGES fuse or open in circuit No. 3 (Pink wire), circuit No. 39(Pink/Black wire) or circuit No. 865 (Purple wire) will result in inoperative indicator lights.
5. This step isolates cause of ABS warning light remaining off. By disconnecting 32-pin connector, circuit No. 1290 (Dark Blue wire) should open, causing ABS warning light to illuminate.
6. This step determines if warning light remains on due to light driver malfunction or open in circuit No. 1290 (Dark Blue wire).
7. This step determines if GAUGES fuse or circuit No. 3 (Pink wire) is open, causing warning light to remain off.
8. This step checks for open in circuit No. 39 (Pink/Black wire), which supplies voltage to light driver module.
9. This step isolates cause of warning light remaining off to a short to ground in circuit No. 1290 (Dark Blue wire) or a malfunctioning light driver module.