A086

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
This DTC is provided as an information only DTC, and reflects the status of the command issued by the ABS Electronic Brake Control Module (EBCM) to illuminate the red brake warning lamp. If another DTC issues a command to illuminate the red brake warning lamp, DTC A086 will be stored in Electrically Erasable Programmable Read Only Memory (EEPROM) as a history DTC at the conclusion of the ignition cycle.

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This step serves to identify if a DTC other than DTC A086 commanded the red brake warning lamp "ON."

DIAGNOSTIC AIDS
Any ABS mechanical DTC that issues a command to illuminate the red "BRAKE" telltale will also result in DTC A086 being stored in EEPROM during shut down. These DTCs are: A038, A041, A042, A046, and A051. If the motors are not in their home position, certain electrical DTCs will also command the red "BRAKE" telltale "ON." These DTCs are: A014, A016, A018, A055, A056, A057, A058, A061, A062, A063, A064, A065, and A066.

If any of these DTCs are indicated along with DTC A086, they must be corrected prior to addressing a DTC A086 malfunction.