Powertrain
generic / SAE
P2C21
Engine Oil Temperature Sensor A/B Correlation
The signals of engine oil temperature sensors A and B do not correlate within the calibrated tolerance. One sensor drifts or installation offset between the two channels.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 21
Possible causes
- One sensor characteristic drifted high
- Harness incorrectly swapped between channels medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 80–350 €
- Estimated time: 0.3–2 h
- Component: engine oil temp sensor a
- Component: engine oil temp sensor b
- Component: ecm
- MIL / check engine light
Sources
References
sae:J2012