A081

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
This DTC identifies a solenoid that cannot be energized due to an open in its driver circuitry, or a short to ground between the solenoid driver and the solenoid. These malfunctions can affect ABS operation since the flow of brake fluid to the wheel cylinder cannot be stopped, making ABS operation for that channel impossible.

FAILURE CONDITION
DTC A081 can be set only when the solenoid is commanded "ON." If the Electronic Brake Control Module (EBCM) detects the right front solenoid control circuit voltage is out of specification, a malfunction exists.

ACTION TAKEN
A malfunction DTC is stored, ABS is disabled and the ABS indicator lamp is turned "ON."

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This step checks for a solenoid that is internally shorted to ground.
2. This step checks for a solenoid that is not within proper resistance values.
3. This step indicates if a short to ground exists in the solenoid circuitry.
4. This checks for an open control circuit to the EBCM.
5. This step checks for a possible intermittent malfunction in the solenoid circuitry due to poor terminal contact.

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

Any circuitry, that is suspected as 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.