Diagnostic Strategies

- When two or three Diagnostic Trouble Codes (DTC)s are stored in the control unit, perform troubleshooting for the DTC that appears first. Antilock Brake System

- When a reported problem cannot be verified on the vehicle, ask about the conditions when the ABS indicator light came ON. Test-drive the vehicle under those conditions, if possible. When the ABS indicator light does not come ON during the test, check for loose terminals and check by shaking the harnesses and connectors. Follow the accompanying flow chart. ABS Indicator Does Not Turn On When Ignition Is Turned On

- After the repair is completed, perform the ABS function test or test-drive the vehicle, and check that the ABS indicator light does not come ON again during the test. Component Tests and General Diagnostics