Clearing Diagnostic Trouble Codes (DTCS)

Caution: Do not attempt to pryoff connectors with a screwdriver. This will damage the connector and could result In a transmission concern.






1. Disconnect transmission tester from TR sensor connector.
2. Reinstall emission harness. Verify connection by puling up on the harness.






3. Disconnect transmission tester power lead from vehicle.
4. Erase all DTCs using the procedures in Computers and Control Systems (Unlatch center button of star tester while codes are being displayed on a KOEO on-board diagnostic test)
5. Rerun on-board diagnostic test to receive a pass code (111).
6. Verify that the customer concern has been eliminated.