A017

Fig. 467 Code 17: ABS Enable Relay Coil Shorted To Ground:

ABS Enable Relay & Circuit:

Circuit Description:
Ignition voltage is supplied through terminal "1" of the ABS enable relay. The EBCM then is able to energize the pull-in coil by completing the ground circuit at pin "22" of the EBCM. The magnetic field created closes the ABS enable relay contacts and allows battery voltage and current to be supplied to the EBCM, which supplies power to the motors and solenoids.

Failure Condition:
DTC A017 can be set before the EBCM commands the ABS enable relay on. This test determines if the relay is energized when it should not be. This malfunction would not allow the ABS enable relay to remove power to the ABS. If a second malfunction were to occur that requires the relay to be turned off, that malfunction can not be removed if the relay can not be controlled.

Action Taken:
A DTC A017 is stored. ABS is not disabled and the "ABS" indicator will not be illuminated.

Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This step indicates if the EBCM is capable of controlling the ABS enable relay as commanded.
2. This checks to ensure the ABS enable relay or control CKT 879 are not shorted to ground.
3. This step ensures DTC was not set due to a poor connection.

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.