ABS 5.3 and 5.3I System Trouble Code Charts For Warning Light Codes: Overview

DESCRIPTIONS
- Trouble Code 21 (front RH)
- Trouble Code 23 (front LH)
- Trouble Code 25 (rear RH)
- Trouble Code 27 (rear LH)

DIAGNOSIS
- Faulty ABS sensor (Broken wire, input voltage too high).
- Faulty harness connector.

TROUBLE SYMPTOM
- ABS does not operate.