Powertrain
generic / SAE
P2AC9
Charge Air Cooler Coolant Temperature Sensor B Circuit Low
Voltage on the charge air cooler coolant temperature B sensor signal line is below the expected window. Wire shorted to ground or sensor short.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / C9
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 50–250 €
- Estimated time: 0.3–1.5 h
- Component: charge air cooler coolant temp sensor b
- Component: wiring harness
- Component: ecm
- MIL / check engine light
Sources
References
sae:J2012