A/T Gear Position Indicator Circuit Troubleshooting
A/T Gear Position Indicator Circuit TroubleshootingSymptom: A/T gear position indicator does not indicate the shift lever position, the [D] indicator does not blink, and no transmission range switch DTCs are indicated.
1. Turn the ignition switch ON (II).
2. Measure the voltage between gauge control module connector terminal B11 and body ground. The shift lever can be in any position.
Is there battery voltage?
YES - Faulty A/T gear position indicator in the gauge control module, replace the gauge control module.
NO - Go to step 3.
3. Measure the voltage between PCM connector terminal D10 and body ground.
Is there battery voltage?
YES - Repair open or short in the wire between PCM connector terminal D10 and the gauge control module connector terminal B11.
NO - Check for loose terminal fit in the PCM connectors. Check the LT GRN wire for a short to ground between the gauge control module and PCM. If necessary, substitute a known-good PCM and recheck.