Powertrain
generic / SAE
P2A4E
Alternative Fuel Temperature Sensor Circuit High
Voltage on the alternative fuel temperature sensor signal line is above the expected window. Wire shorted to B+ or sensor open.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 4E
Possible causes
- Signal wire shorted to B+ high
- Open temperature sensor 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: alt fuel temperature sensor
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012