P0844
PowertrainTransmission Pressuremoderate severityTransmission Fluid Pressure Sensor/Switch A Circuit Intermittent
What P0844 Means
The PCM detected an intermittent fault in the transmission pressure sensor A circuit. The signal drops out or fluctuates unexpectedly.
Symptoms
- Intermittent harsh shifts
- Warning light comes and goes
- Occasional slipping
Common Causes
- Loose or corroded connector
- Intermittent wiring fault
- Failing pressure sensor
- Vibration-related contact loss
Diagnostic Steps
- Scan for stored and pending codes
- Wiggle-test wiring and connectors
- Monitor sensor data during driving
- Inspect for chafed or loose wiring
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