ABS Trouble Code Charts For Warning Light Codes

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NOTE: Trouble code 21 (Front RH), Trouble code 23 (Front LH), Trouble code 25 (Rear RH), Trouble code 27 (Rear LH): Abnormal ABS sensor (Open circuit or input voltage too high)

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

TROUBLE SYMPTOM:
ABS does not operate.




WIRING DIAGRAM: