Powertrain
generic / SAE
P23C7
Fuel Heater Control Module Power Control Circuit Open
The control line that energises the fuel heater control module - used on diesel systems for cold-weather fuel preheating - is open.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / C7
Possible causes
- Open in control wiring high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–450 €
- Estimated time: 0.6–2 h
- Component: fuel heater control module
- MIL / check engine light
Sources
References
sae:J2012