Pinpoint Test 28: The Anti-Lock Brake System (ABS) Warning Indicator Is Always On

PINPOINT TEST 28: THE ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS ALWAYS ON

Normal Operation

The instrument cluster receives the ABS status from the ABS module through hardwired circuitry. When an ABS concern is present, the ABS module sends the instrument cluster a command to illuminate the ABS warning indicator. If the instrument cluster detects a fault condition in the ABS, the instrument cluster turns on the ABS warning indicator.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- ABS module
- Instrument cluster

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Step 1-Step 5:

Step 6-Step 9: