Powertrain
generic / SAE
P2B2D
Engine Coolant Temperature Sensor 5 Circuit Low
Voltage on the engine coolant temperature 5 sensor signal line is below the expected window. Wire shorted to ground or sensor short.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberB / 2D
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Cooling fan runs constantly or not at all
- Cabin heater weak or excessively hot
- Possible long warm-up time or hard cold start
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 50–250 €
- Estimated time: 0.3–1.5 h
- Component: engine coolant temperature sensor 5
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012