OBD-II code · Powertrain (generic)
P0708 Transmission Range Sensor A Circuit High
Same as P0707 with the signal voltage above the plausible range. 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 P0708?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal shorted to supply
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
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
- Often, with basic tools
- Typical labour
- 0.6–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Transmission Range Sensor A
Related codes
- P2803Transmission Range Sensor B Circuit High
- P0705Transmission Range Sensor Circuit Malfunction
- P0706Transmission Range Sensor Circuit Range/Performance
- P0707Transmission Range Sensor A Circuit Low
- P0709Transmission Range Sensor A Circuit Intermittent
- P070ATransmission Fluid Level Sensor Circuit
- P070BTransmission Fluid Level Sensor Circuit Range or Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.