Powertrain
generic / SAE
P06AE
Control Module Internal Temperature Sensor B Circuit High
Same as P0669 on internal sensor B. 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
GroupP0
Range / number6 / AE
Possible causes
- Sensor internal open high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2000 €
- Estimated time: 2–6 h
- Component: ecu internal temperature sensor b
- MIL / check engine light
Sources
References
sae:J2012