A081

DTC A081 Right Front Solenoid Circuit Shorted To Ground:

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 caliper cannot be stopped, making ABS operation for that channel impossible.

Failure Condition:
DTC AO81 can be set only when the solenoid is commanded on. If the EBCM detects the right front solenoid control circuit voltage is out of specification a malfunction exists.

Action Taken:
A DTC AO81 is stored, ABS is disabled and the "ABS" indicator 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 control 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 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.