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Home >> Acura >> 2009 >> MDX V6-3.7L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> 67 >> VSA System

VSA System




VSA DTC Troubleshooting: 67

DTC 67: Brake Pedal Position Switch Stuck ON (Hardware)

1. Turn the ignition switch to ON (II).

2. Check for DTCs with the HDS.

Is DTC 91 or 92 indicated with DTC 67 at the same time?
YES - Do the DTC 91 or 92 troubleshooting: DTC 91, VSA System DTC 92 . 92

NO - Go to step 3.


3. Check the BRAKE SWITCH in the VSA DATA LIST with the HDS while moving the brake pedal.

Does it indicate ON when the pedal is pressed, and OFF when the pedal is released?
YES - Go to step 4.

NO - Go to step 7.


4. Clear the DTC with the HDS.

5. Test-drive the vehicle at 10 mph (15 km/h) for 60 seconds or more.

6. Check for DTCs with the HDS.

Is DTC 67 indicated?
YES - Check for loose terminals in the VSA modulator-control unit 46P connector. Check for a loose connection at G303. If necessary, substitute a known-good VSA modulator-control unit Service and Repair and retest.

NO - Intermittent failure, the system is OK at this time. Check for loose terminals at the VSA modulator-control unit 46P connector. Check for a loose connection at G303. Refer to intermittent failures troubleshooting. Initial Inspection and Diagnostic Overview


7. Turn the ignition switch to LOCK (0).

8. Disconnect the brake pedal position switch 4P connector.

9. Do the brake pedal position switch test . Testing and Inspection

Is the switch OK?
YES - Check for fuel and emissions systems DTCs, Initial Inspection and Diagnostic Overview and troubleshoot those DTCs first, if no fuel and emissions systems DTCs are found troubleshoot the brake pedal position switch signal circuit. Brake Pedal Position Switch Signal Circuit Troubleshooting

NO - Replace the brake pedal position switch. Adjustments