7000 - 7999: 7271

7271-IMPLAUSIBLE FRONT WHEEL SPEED MESSAGE RECEIVED

For a complete wiring diagram consult Diagrams/Electrical Electrical Diagrams


- When Monitored:

Continuously with the ignition on, one implausible message received at least once.

- Set Condition:

When the Anti-Lock Brake Module detects an incorrect wheel speed sensor signal for approximately 200 mSec.









1. CHECK IF DTC 7271-IMPLAUSIBLE FRONT WHEEL SPEED MESSAGE RECEIVED IS PRESENT

With the scan tool, read the DTCs.

Is DTC 7271-IMPLAUSIBLE FRONT WHEEL SPEED MESSAGE RECEIVED present?

Yes

- Go To 2

No

- Perform the ABS INTERMITTENT CONDITION diagnostic procedure.




2. WHEEL SPEED SENSOR DTCS

With the scan tool, read the DTCs.

Are any other Wheel Speed Sensor DTCs present?

Yes

- Refer to appropriate wheel speed sensor diagnostic procedure.
- Perform ABS VERIFICATION TEST. Verification Tests

No

- Replace the Anti-Lock Brakes Module.
- Perform ABS VERIFICATION TEST. Verification Tests