OBD-II code · Powertrain (generic)
P07C3 Input/Turbine Shaft Speed Sensor C Circuit Low
Same as sensor A circuit low, applied to sensor C (used in some heavy-duty or hybrid-coupled transmissions with three input speed sensors).
Is it safe to drive with P07C3?
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
- Input Shaft Speed Sensor C, Sensor Wiring
Related codes
- P07BFInput/Turbine Shaft Speed Sensor A Circuit Low
- P07C1Input/Turbine Shaft Speed Sensor B Circuit Low
- P07C0Input/Turbine Shaft Speed Sensor A Circuit High
- P07C2Input/Turbine Shaft Speed Sensor B Circuit High
- P07C4Input/Turbine Shaft Speed Sensor C Circuit High
- P07C5Intermediate Shaft Speed Sensor A Circuit Low
- P07C6Intermediate Shaft Speed Sensor A Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.