Powertrain
generic / SAE
P01ED
Engine Coolant Heater B Control Circuit Low
Engine Coolant Heater B Control Circuit Low: the control-circuit voltage is below the expected range. Often a short to ground or high resistance in the wiring.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / ED
Possible causes
- Wiring shorted to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–3 h
- Component: coolant heater b
- Component: heater wiring
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012