Honda Accord ESM 2003 · Service Manual Service Manual 2003

VSA Activation Indicator Circuit Troubleshooting (VSA)

VSA Activation Indicator Circuit Troubleshooting

VSA activation indicator does not come on


1.Turn the ignition switch ON (II), and watch the VSA activation indicator.

Does the VSA activation indicator come on for several seconds?


YES - The system is OK at this time.n


NO - Go to 2.


2.Apply the parking brake.

Does the brake system indicator come on?


YES - Go to 3.


NO - Repair open in the indicator power source circuit.n


3.Turn the ignition switch OFF.

4.Substitute a known-good VSA modulator-control unit.

5.Turn the ignition switch ON (II).

Does the VSA activation indicator come on?


YES - Replace the VSA modulator-control unit.n


NO - Do the troubleshooting for the gauge control module.n

VSA activation indicator does not go off, and no DTCs are stored


1.Turn the ignition switch ON (II), and watch the VSA system indicator.

Does the VSA system indicator go off?


YES - Go to 2.


NO - Do the appropriate troubleshooting for the VSA system indicator.n


2.Turn the ignition switch OFF.

3.Check the VSA OFF switch.

Is the switch OK?


YES - Go to 4.


NO - Replace the VSA OFF switch.n


4.Clear the DTC.

Does the VSA system indicator go off?


YES - The system is OK at this time.n


NO - Go to 5.


5.Remove the gauge control module.

6.Turn the ignition switch ON (II).

7.Measure the voltage between the gauge control module connector B (30P) terminal No. 7 and body ground.

SEA3E37D52100063602FAAD01GAUGE CONTROL MODULE CONNECTOR B (30P)Wire side of female terminalsVSA OFF SW (RED/WHT)

Is there battery voltage?


YES - Go to 8.


NO - Replace the gauge control module.n


8.Measure the voltage between the VSA OFF switch 5P connector terminal No. 2 and body ground.

SEA3E37D52100063602FAAD02VSA OFF SWITCH 5P CONNECTORWire side of female terminalsVSA OFF SW (RED/WHT)

Is there battery voltage?


YES - Go to 9.


NO - Repair open in the wire between the gauge control module and the VSA OFF switch.n


9.Turn the ignition switch OFF.

10.Check for continuity between the VSA OFF switch 5P connector terminal No. 1 and body ground.

SEA3E37D52100063602FAAD03VSA OFF SWITCH 5P CONNECTORWire side of female terminalsGND (BLK)

Is there continuity?


YES - Go to 11.


NO - Repair open in the wire between the VSA OFF switch and body ground (G501).n


11.Substitute a known-good VSA modulator-control unit.

12.Recconnect all of the disconnected connectors.

13.Clear the DTC .

14.Test-drive the vehicle.

Does the VSA activation indicator go off?


YES - Replace the VSA modulator-control unit.n


NO - Check for loose terminals in the gauge control module connectors. If necessary, substitute a known-good gauge control module, and recheck.n