Circuit Description
The ABS indicator is controlled by the EBCM. The EBCM supplies the ground to CKT 867 in order to keep the indicator off. When CKT 867 looses ground at the EBCM, the ABS indicator turns on.
Diagnostic Aids
| • | It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. |
| • | Thoroughly inspect any circuitry that may be causing the complaint for the following conditions: |
| - | Backed out terminals |
| - | Improper mating |
| - | Broken locks |
| - | Improperly formed or damaged terminals |
| - | Poor terminal-to-wiring connections |
| - | Physical damage to the wiring harness |
| • | The following conditions may cause an intermittent malfunction: |
| - | A poor connection |
| - | Rubbed-through wire insulation |
| - | A broken wire inside the insulation |
| • | If an intermittent malfunction exists refer to General Electrical Diagnosis in Wiring Systems for further diagnosis. |
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: TRAC OFF indicator is on and traction control was not turned off. There are no DTC(s) set. SCHEMATIC REFERENCE: ABS Schematics
| ||||
1 | Was the Diagnostic System Check performed? | -- | ||
Does the ABS Indicator turn off? | -- | |||
3 | Replace the EBCM. Refer to Electronic Brake and Traction Control Module Replacement . Is the replacement complete? | -- | -- | |
Is the resistance within the range specified in the value(s) column? | 0-5ohms | |||
5 | Repair CKT 867 for an open or high resistance. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
6 | Replace the Instrument Panel. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Is the repair complete? | -- | -- | |
