OBD-II code · Powertrain (generic, extended)
P2CE4 Intake Air Heater C Circuit High
The control circuit of intake air heater C reports a circuit high condition. Cold-start preheating cannot be commanded as expected.
Is it safe to drive with P2CE4?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen heater element
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Intake Air Heater C, Wiring Harness, Ecm
Related codes
- P0542Intake Air Heater A Circuit High
- P2608Intake Air Heater B Circuit High
- P2CE1Intake Air Heater C Circuit/Open
- P2CE2Intake Air Heater C Circuit Range/Performance
- P2CE3Intake Air Heater C Circuit Low
- P2CE5Particulate Filter Pressure Sensor C Circuit
- P2CE6Particulate Filter Pressure Sensor C Range/Performance
- P2CE7Particulate Filter Pressure Sensor C Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.