| 1. | Check the No. 3 (10A) fuse in the under-dash fuse/relay box. Is the fuse OK? YES - Go to 2. NO - Replace the fuse, and recheck.n |
| 2. | Start the engine and check the Malfunction Indicator Lamp (MIL). Does the MIL come on? YES - Troubleshoot the DTC, and recheck.n NO - Go to 3. |
| 3. | Turn the ignition switch OFF. |
| 4. | Shift to reverse gear. Can the transmission be shifted into reverse gear? YES - Go to 5. NO - Repair the transmission and recheck.n |
| 5. | Turn the ignition switch ON (II). With the vehicle moving slowly (vehicle speed below 15 km/h (9 mph), shift the transmission into reverse gear. Can the transmission be shifted into reverse gear? YES - Go to 6. NO - Go to 7. |
| 6. | Raise the front wheels and block the rear wheels, run the vehicle to a speed above 20 km/h (12 mph). Can the transmission be shifted into reverse gear? YES - Go to 8. NO - Intermittent failure, system is OK at this time.n |
| 7. | Check the VSS input in the PGM-FI data list with the PGM Tester. Is the vehicle speed input below 15 km/h (9 mph)? YES - Check for a short to body ground in the BLU/WHT and GRN wire between the reverse lockout solenoid and the ECM (A27). If the wire is OK, substitute a known-good ECM and recheck.n NO - Repair the VSS circuit.n |
| 8. | With the vehicle still running above 20 km/h ( 12 mph), check the VSS input in the PGM-FI data list with the PGM Tester or the HDS. Is the vehicle speed input above 20 km/h ( 12 mph)? YES - Go to 9. NO - Repair the VSS circuit.n |
| 9. | Turn the ignition switch OFF. |
| 10. | Disconnect the reverse lockout solenoid 2P connector. |
| 11. | Turn the ignition switch ON (II). |
| 12. | Measure the voltage between the reverse lockout solenoid 2P connector terminal No. 2 and body ground.
Is there battery voltage? YES - Go to 13. NO - Check for loose or poor connections at connector. If the connections are OK, repair open in the wire between No. 3 (10A) fuse in the under-dash fuse/relay box and the reverse lockout solenoid.n |
| 13. | Turn the ignition switch OFF. |
| 14. | Remove the reverse lockout solenoid. |
| 15. | Connect the No. 2 terminal of the reverse lockout solenoid 2P connector to the battery positive terminal, and connect the No. 1 to the battery negative terminal. Check that the reverse lockout solenoid operates.
Does the reverse lockout solenoid operate properly? YES - Go to 16. NO - Replace the reverse lockout solenoid.n |
| 16. | Reinstall the reverse lockout solenoid and reconnect the solenoid 2P connector. |
| 17. | Turn the ignition switch ON (II). |
| 18. | Measure the voltage between ECM connector A27 and body ground.
Is there battery voltage? YES - Check for loose connectors at ECM connector A (44P). If necessary, update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.n NO - Repair open in the wire between reverse lockout solenoid and ECM (A27).n |