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Home >> Acura >> 2005 >> RSX Base, Standard >> Repair and Diagnosis >> Transmission >> Manual Trans >> Manual Transmission >> Reverse Lockout System >> Circuit Troubleshooting

Circuit Troubleshooting

  1. Check the No. 4 (10A) fuse in the underdash fuse/relay box.

    Is the fuse OK? 

    1. YES -  Go to step 2.
    2. NO -  Replace the fuse, and recheck.
  2. Start the engine, and check the Malfunction Indicator Lamp (MIL).

    Does the MIL come on? 

    1. YES -  Troubleshoot the DTC (see GENERAL TROUBLESHOOTING INFORMATION ), and recheck.
    2. NO -  Go to step 3.
  3. Turn the ignition switch OFF.
  4. Shift into reverse gear.

    Can the transmission be shifted Into reverse gear? 

    1. YES -  Go to step 5.
    2. NO -  Repair the transmission, and recheck.
  5. Turn the ignition switch ON (II). With the vehicle moving slowly (vehicle speed below 9 mph (15 km/h)), shift the transmission into reverse gear.

    Can the transmission be shifted into reverse gear? 

    1. YES -  Go to step 6.
    2. NO -  Go to step  7.
  6. Raise the front wheels, and block the rear wheels. Run the vehicle to a speed above 12 mph (20 km/h).

    Can the transmission be shifted into reverse gear? 

    1. YES -  Go to step 7.
    2. NO -  Intermittent failure, system is OK at this time.
  7. Turn the ignition switch OFF.
  8. Disconnect the reverse lockout solenoid 2P connector.
  9. Turn the ignition switch ON (II).
  10. Measure the voltage between the reverse lockout solenoid 2P connector terminal No. 2 and body ground.
    Fig 1: Identifying Connector
    G03651522Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    1. YES -  Go to step 11.
    2. NO -  Check for loose or poor connections at C101 (20P) connector. If the connections are OK, repair open in the wire between No. 4 (10 A) fuse in the underdash fuse/relay box and the reverse lockout solenoid.
  11. Turn the ignition switch OFF.
  12. Remove the reverse lockout solenoid (see REVERSE LOCKOUT SOLENOID TEST  ).
  13. Connect the No. 2 terminal of the reverse lockout solenoid 2P connector to the battery positive terminal, and connect the No. 1 terminal to the battery negative terminal. Make sure the reverse lockout solenoid operates.
    Fig 2: Identifying Reverse Lockout Solenoid 2P Connector
    G03651523Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Does the reverse lockout solenoid operate properly? 

    1. YES -  Go to step 14.
    2. NO -  Replace the reverse lockout solenoid.
  14. Reinstall the reverse lockout solenoid, and reconnect the solenoid 2P connector.
  15. Turn the ignition switch ON (II).
  16. Measure the voltage between ECM connector B7 terminal (2002-2004 models) or E2 terminal (2005-2006 models) and body ground.

    2002-2004 models: 

    Fig 3: Identifying ECM Connector B (24P)
    G03651524Courtesy of AMERICAN HONDA MOTOR CO., INC.

    2005-2006 models: 

    Fig 4: Identifying ECM Connector E (31P)
    G03651525Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    1. YES -  Check for loose connectors at ECM connector B (24P) (2002-2004 models) or E (31P) (2005-2006 models). If necessary, update the ECM if it does not have the latest software, or substitute a known-good ECM (see HOW TO SUBSTITUTE THE ECM/PCM (2002-2004 MODELS) ), then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM (see ECM/PCM REPLACEMENT )
    2. NO -  Repair open in the wire between the reverse lockout solenoid and the ECM (B7) (2002-2004 models) or ECM (E2) (2005-2006 models).
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