Circuit Troubleshooting

NOTE:

When checking if the transmission will shift to reverse while the wheels are being driven forward, raise the vehicle on a lift, make sure it is securely supported, and allow the front wheels to rotate freely.

Do not release the clutch pedal if you can select reverse gear while the wheels are driven forward.

When the vehicle is on a lift, and youmake the wheels rotate, turn off the VSA system by the VSA OFF switch.

Check the No. 3 (10 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?

YES -Go to step 2.

NO -Replace the fuse, and recheck.
Start the engine, and check the Malfunction Indicator Lamp (MIL).
Does the MIL come on?

YES -Troubleshoot the DTC (see GENERAL TROUBLESHOOTING INFORMATION ), and recheck.

NO -Go to step 3.
Turn the ignition switch OFF.
Shift into reverse.
Can you shift the transmission into reverse?

YES -Go to step 5.

NO -Repair the transmission, and recheck.
Turn the ignition switch ON (II). With the vehicle moving slowly (vehicle speed below 9 mph (15 km/h), shift the transmission into reverse, but do not release the clutch pedal.
Can you shift the transmission into reverse?

YES -Go to step 6.

NO -Go to step 16.
Raise the vehicle on the lift, make sure it is securely supported, and allow the front wheels to rotate freely.
Start the engine. Then shift the transmission into 1st gear and drive the vehicle until the speedometer reads above 20 km/h (12 mph).
Can you shift the transmission into reverse?

YES -Go to step 8.

NO -Intermittent failure, the system is OK at this time.
Turn the ignition switch OFF.
Disconnect the reverse lockout solenoid 2P connector.
Turn the ignition switch ON (II).
Measure voltage between the reverse lockout solenoid 2P connector terminal No. 2 and body ground.

Fig 1: Measuring Voltage Between Reverse Lockout Solenoid 2P Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 12.

NO -Check for loose or poor connections at connector. If the connections are OK, repair open or short in the wire between No. 3 (10 A) fuse in the under-dash fuse/relay box and the reverse lockout solenoid.
Turn the ignition switch OFF.
Remove the reverse lockout solenoid (see REVERSE LOCKOUT SOLENOID TEST ).
At the reverse lockout solenoid side, connect the reverse lockout solenoid 2P connector terminal No. 2 to the battery positive terminal, and connect the terminal No. 1 to the battery negative terminal. Make sure the reverse lockout solenoid works.

Fig 2: Connecting Reverse Lockout Solenoid 2P Connector Terminals To Battery Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Does the reverse lockout solenoid work properly?

YES -Go to step 15.

NO -Replace the reverse lockout solenoid (see REVERSE LOCKOUT SOLENOID TEST ).
Reinstall the reverse lockout solenoid, and reconnect the reverse lockout solenoid 2P connector.
Jump the SCS line with the HDS.
Disconnect ECM connector A (44P).
Turn the ignition switch ON (II).
Measure voltage between ECM connector A27 and body ground.

Fig 3: Measuring Voltage Between ECM Connector A27 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Check for loose connections at ECM connector A (44P). If necessary, update the ECM if it does not have the latest software (see UPDATING THE ECM/PCM ), or substitute a known-good ECM, then recheck (see SUBSTITUTING THE ECM/PCM ). If the symptom/indication goes away with a known-good ECM, replace the original ECM (see ECM/PCM REPLACEMENT ).

NO -Repair open in the wire between the reverse lockout solenoid and ECM (A27).