Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- With the scan tool, read DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Test complete.
- With the scan tool, read DTCs.
- CHECK THE CAN LINE WIRING BETWEEN THE INSTRUMENT PANEL CLUSTER AND THE ANTILOCK BRAKE SYSTEM MODULE
- Check that the CAN connections between the Instrument Panel Cluster (IPC) and the Antilock Brake System (ABS) module are not faulty. In particular, that there are no open circuit or short circuit problems.
Were there any faulty conditions?
Yes
- Restore or, if necessary, replace the wiring.
No
- Go To 3
- Check that the CAN connections between the Instrument Panel Cluster (IPC) and the Antilock Brake System (ABS) module are not faulty. In particular, that there are no open circuit or short circuit problems.
- CHECK THE INSTRUMENT PANEL CLUSTER CONNECTORS
- Disconnect / reconnect the IPC connectors and check for loose pins
Were there any loose pins found?
Yes
- Restore the connector to a correct working order.
No
- Go To 4
- Disconnect / reconnect the IPC connectors and check for loose pins
- CHECK THE ANTILOCK BRAKE SYSTEM MODULE CONNECTORS
- Disconnect / reconnect the ABS module connectors and check for loose pins
Were there any loose pins found?
Yes
- Restore the connector to a correct working order.
No
- Go To 5
- Disconnect / reconnect the ABS module connectors and check for loose pins
- CHECK THE INSTRUMENT PANEL CLUSTER POWER SUPPLY
- Check that the power supply to the IPC is correct.
Is the power supply to the IPC correct?
Yes
- Go To 6
No
- Restore the correct power supply.
- Check that the power supply to the IPC is correct.
- CHECK THE ANTILOCK BRAKE SYSTEM MODULE POWER SUPPLY
- Check that the power supply to the ABS module is correct.
Is the power supply to the ABS module correct?
Yes
- Go To 7
No
- Restore the correct power supply.
- Check that the power supply to the ABS module is correct.
- CHECK THE INSTRUMENT PANEL CLUSTER
- Check that the IPC is operating correctly.
Is the IPC operating correctly?
Yes
- Go To 8
No
- Replace the Instrument Panel Cluster (IPC) in accordance with the Service Information. Refer to REMOVAL AND INSTALLATION .
- Check that the IPC is operating correctly.
- CHECK THE ANTILOCK BRAKE SYSTEM MODULE
- Check that the ABS module is operating correctly.
Is the ABS module operating correctly?
Yes
- Test complete.
No
- Replace the Antilock Brake System (ABS) module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL AND INSTALLATION .
- Check that the ABS module is operating correctly.