U3002

Anti-Lock Control

Pinpoint Test N: DTC U3002:62

Refer to Wiring Diagram Set 42, Vehicle Dynamic Systems for schematic and connector information [1][2]Diagrams By Number.

Normal Operation

When the ignition is turned to the RUN position, the ABS module and the PCM share Vehicle Identification Number (VIN) information over the High Speed Controller Area Network (HS-CAN).

- DTC U3002:62 (Vehicle Identification Number: Signal Compare Failure)- sets in continuous memory and indicates that the VIN (Vehicle Identification Number) message sent by the PCM over the HS-CAN (High Speed Controller Area Network) does not match the VIN (Vehicle Identification Number) stored in the ABS module.

This pinpoint test is intended to diagnose the following:

- Module configuration (ABS module and PCM)

- ABS module

PINPOINT TEST N : DTC U3002:62

N1 VERIFY PCM VIN (Vehicle Identification Number)

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Log Viewer.

- Compare the VIN (Vehicle Identification Number) in Log Viewer to the vehicle VIN (Vehicle Identification Number) plate.

Does VIN (Vehicle Identification Number) in Log Viewer match the vehicle VIN (Vehicle Identification Number) plate?

Yes
GO to N2.

No
CARRY OUT Programmable Module Installation (PMI) for the PCM Programming and Relearning. REFER to Information Bus, using the Integrated Diagnostic System (IDS) when the original module is NOT available. TEST the system for normal operation.

N2 VERIFY ABS MODULE PART NUMBER

- Retrieve and record the ABS module part number from Log Viewer and verify that the vehicle has the correct ABS module installed.

Is the correct ABS module installed in the vehicle?

Yes
CARRY OUT PMI (Programmable Module Installation) for the ABS module Programming and Relearning. REFER to Information Bus, using the IDS (Integrated Diagnostic System) when the original module is NOT available. TEST the system for normal operation.

No
INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . CLEAR the DTC. CYCLE the ignition key. REPEAT the self-test.