4BE0

4BE0-MISSING IMPLAUSIBLE DYNAMICS SENSOR MESSAGE

For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously with the ignition on.

- Set Condition:
When the Anti-Lock Brake Module detects an incorrect CAN message from the Dynamics Sensor.





1. CHECK FOR A DTC 4BE0-MISSING IMPLAUSIBLE DYNAMICS SENSOR MESSAGE

NOTE: Diagnose and repair any other Dynamics Sensor DTCs, any communication DTCs, BCM or ECM DTCs and any system under voltage or over voltage DTCs before continuing with this test.

NOTE: This DTC must be active for the results of this test to be valid.

1. Turn the ignition on.
2. With the scan tool, read DTCs.
3. Record DTC and Freeze Frame information.
4. With the scan tool, erase DTCs.
5. Cycle the ignition switch off then on.
6. With the scan tool, read DTCs.

Does the scan tool display: 4BE0-MISSING IMPLAUSIBLE DYNAMICS SENSOR MESSAGE?

Yes

- Go To 2

No

- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Perform the ABS-INTERMITTENT CONDITION diagnostic procedure Testing and Inspection.

2. CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS
1. Visually inspect the related wiring harness. Look for any bruised, chafed, pierced, or partially broken wires.
2. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
3. Monitor the scan tool data relative to this circuit while performing a wiggle test on the wiring. Look for the data to change other than as expected or for the DTC to reset.
4. Search for any Technical Service Bulletins that apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 3

3. DYNAMICS SENSOR
1. Replace the Dynamics Sensor.
2. Perform ABS VERIFICATION TEST. ABS Verification Test.

Did DTC 4BE0-MISSING IMPLAUSIBLE DYNAMICS SENSOR MESSAGE reset?

Yes

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

No

- Test Complete.