Transmission Mode Switch A Circuit High

Where it lives

For P071C, the switch sits on the circuit this code reports. The description of P071C reports a fault at the switch.

Check these first

• An open in the mode switch A circuit
• A mode switch A that will not close
• A backed out connector pin
• A failed switch ground

What to do next

1. Read the mode switch A state on a scan tool
2. Ground the signal wire and watch the state change
3. Test the circuit for an open
4. Check the connector pins and ground
5. Replace the mode switch if the wiring is good
6. Clear the code and retest

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