OBD-II code · Powertrain (generic)
P083C Transmission Fluid Pressure Sensor/Switch G Circuit Low
Pressure sensor G signal voltage below the lower limit — short to ground or open reference. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P083C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Transmission Pressure Sensor G
Related codes
- P083ATransmission Fluid Pressure Sensor/Switch G Circuit
- P0842Transmission Fluid Pressure Sensor/Switch A Circuit Low
- P0847Transmission Fluid Pressure Sensor/Switch B Circuit Low
- P084CTransmission Fluid Pressure Sensor/Switch H Circuit Low
- P0872Transmission Fluid Pressure Sensor/Switch C Circuit Low
- P0877Transmission Fluid Pressure Sensor/Switch D Circuit Low
- P0989Transmission Fluid Pressure Sensor/Switch E Circuit Low
- P0994Transmission Fluid Pressure Sensor/Switch F Circuit Low
- P0839Four Wheel Drive (4WD) Switch Circuit High
- P083BTransmission Fluid Pressure Sensor/Switch G Circuit Range/Performance
- P083DTransmission Fluid Pressure Sensor/Switch G Circuit High
- P083ETransmission Fluid Pressure Sensor/Switch G Circuit Intermittent
- P083FClutch Pedal Switch A/B Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.