P0952
PowertrainTransmission Shiftmoderate severityAuto Shift Manual Control Circuit Low
What P0952 Means
The automatic shift manual control circuit is showing a lower than expected voltage signal. This points to a short to ground or an open in the manual shift control wiring.
Symptoms
- Manual shift mode fails to engage
- Transmission stuck in automatic mode
- Warning light illuminated
Common Causes
- Short to ground in shift circuit wiring
- Faulty shift selector switch
- Corroded connector pins
- Failed transmission control module
Diagnostic Steps
- Scan for stored transmission codes
- Measure circuit voltage at the connector
- Inspect wiring for shorts to ground
- Test shift switch resistance values
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