Transmission Park Position Sensor/Switch A Circuit Performance High

Where it lives

For P07B6, the part to look at first is the sensor named here.

Check these first

• A park position switch A signal drifting high
• A short to power in the switch A circuit
• Corrosion at the switch A connector
• A misadjusted neutral safety switch
• A PCM fault on the switch A input

What to do next

1. Read park position switch A voltage on a scan tool
2. Test the switch A circuit for a short to power
3. Compare the switch A reading in each gear
4. Check the neutral safety switch adjustment
5. Replace the switch if the signal drifts
6. Clear the code and retest

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