P0827
PowertrainTransmissionmoderate severityUp and Down Shift Switch Circuit Low
What P0827 Means
The signal from the manual up/down shift switch circuit is reading lower than expected. This usually points to a short to ground or open in the circuit.
Symptoms
- Manual shift requests ignored
- Transmission warning light on
- Intermittent shift response
Common Causes
- Short to ground in switch circuit
- Faulty up/down shift switch
- Corroded or damaged connector
- Faulty transmission control module
Diagnostic Steps
- Retrieve codes and freeze frame data
- Measure signal voltage at the switch
- Check wiring for shorts to ground
- Repair circuit or replace switch as needed
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