Up and Down Shift Switch Circuit Low

Where it lives

For P0827, the switch sits on the circuit this code reports. The description of P0827 reports a fault at the switch.

Check these first

• A short to ground in the up and down shift switch circuit
• A faulty up and down shift switch
• Corrosion at the shift switch connector
• Low battery voltage
• A PCM fault on the shift switch input

What to do next

1. Read the up and down shift switch voltage on a scan tool
2. Test the shift switch circuit for a short to ground
3. Check the shift switch connector and wiring
4. Check the battery voltage and ground
5. Replace the switch if the circuit tests good
6. Clear the code and retest

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