ABS System Electronic Diagnosis
OVERVIEWThe following information is presented to give the technician a general background on the diagnostic capabilities of the ABS system. Complete electronic diagnosis of the ABS system used on this vehicle is covered in On-Board Diagnostic Procedures.
Diagnostic Scan Tool Data Link Connector:
Electronic diagnosis of the ABS system used on this vehicle is performed using the DRB scan tool. The vehicle's scan tool diagnostic connector is located under the steering column lower cover, to the left side of the steering column.
TRACTION CONTROL LAMP
The traction control lamp is tested by cycling the traction control switch on and off. The traction control switch used on this vehicle is a momentary contact type switch. The test procedure for the traction control light is performed as follows: Press the traction control switch once and the TRAC OFF lamp will illuminate. With the TRAC OFF lamp illuminated, press the traction control switch again and the TRAC OFF lamp will turn off.
If the traction control lamp does not function as described in the test above, diagnosis of the traction control switch, lamp, wiring and other related components of the traction control system is required.