P0845
PowertrainTransmission Pressuremoderate severityTransmission Fluid Pressure Sensor/Switch B Circuit
What P0845 Means
The PCM detected a problem in the transmission fluid pressure sensor or switch circuit B. This affects pressure monitoring and can degrade shift performance.
Symptoms
- Erratic shifting
- Transmission warning light
- Possible limp mode
Common Causes
- Faulty pressure sensor B
- Damaged wiring or connector
- Low transmission fluid
- Internal hydraulic fault
Diagnostic Steps
- Retrieve fault codes and freeze frame
- Check fluid level and condition
- Inspect sensor B wiring and connector
- Test sensor resistance and signal
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✓ Autel official store
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