Powertrain
generic / SAE
P2768
Input/Turbine Shaft Speed Sensor B Circuit Intermittent
The second input shaft speed sensor signal jumps or drops out intermittently. 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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / 68
Possible causes
- Sensor connector not fully seated high
- Harness chafed against transmission housing medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: input shaft speed sensor b
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012