DTC 66: VSA Pressure Sensor (Inside of VSA Modulator-Control Unit)
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).
- Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
- Check for DTC s with the HDS.
Is DTC 64 indicated?
YES -Do the troubleshooting for DTC 64 (see DTC 64: SENSOR POWER VOLTAGE ).
NO -Go to step 5.
- Check the BRAKE PRESS in the VSA DATA LIST with the HDS without pressing the brake pedal.
Is there over 0.8 MP a or more?
YES -Go to step 6.
NO -Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
- Press the brake pedal until BRAKE SWITCH in the VSA DATA LIST is turned ON with the HDS.
- Check the BRAKE PRESS in the VSA DATA LIST with the HDS.
Is there 0 MP a?
YES -Go to step 8.
NO -Check the brake pedal position switch. If necessary, replace the switch (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT ).
- Do the VSA sensor neutral position memorization (see VSA SENSOR NEUTRAL POSITION MEMORIZATION ).
- Start the engine and press the brake pedal until BRAKE PRESS in the VSA DATA LIST is 15 MP a with the HDS.
- Check for DTC s with the HDS.
Is DTC 66 indicated?
YES -Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
NO -The system is OK at this time. Refer to intermittent failures (see DIAGNOSTIC TROUBLE CODE (DTC) ). Check for loose terminals or poor connections.