OBD-II code · Powertrain (generic)
P0793 Intermediate Shaft Speed Sensor A Circuit No Signal
Intermediate shaft speed sensor A is connected and powered, but no rotation pulses arrive while the transmission is in motion. Either the sensor reluctor wheel is damaged, the sensor air gap is wrong, or the element has failed open.
Is it safe to drive with P0793?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyFailed sensor element (open)
- PossibleDamaged reluctor wheel
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.6–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Intermediate Shaft Speed Sensor A, Reluctor Wheel
Related codes
- P0792Intermediate Shaft Speed Sensor A Circuit Range/Performance
- P2747Intermediate Shaft Speed Sensor B Circuit No Signal
- P2751Intermediate Shaft Speed Sensor C Circuit No Signal
- P0790Normal/Performance Switch Circuit
- P0791Intermediate Shaft Speed Sensor A Circuit
- P0794Intermediate Shaft Speed Sensor A Circuit Intermittent
- P0795Pressure Control Solenoid C
- P0796Pressure Control Solenoid C Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.