P2CE3Intake Air Heater C Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2CE3 means the signal in the circuit of intake air heater C reads too low, as with the control or feedback line shorted to ground or a relay output pulled down. Volvo uses it with the suffix -11, which in the failure type scheme denotes a ground short. The August 2020 EMS change log for Volvo trucks with US17 and OBD2019 engines lists P2CE3-11 among the codes reduced by a pre-heat relay robustness update released in February 2019, and Volvo's 2020 supplementary instruction KC-15 for the pre-heat relay includes it as well. That instruction applies only from US10+OBD13 trucks onward and has relay and supply power cable replaced as a pair. P2CE4 is the high-side code, P2CE1 the open circuit; for heater A the low code is P0541.
- What you may notice
- Pre-heat not working, hard cold starts
- White smoke after starting in cold weather
- Fault lamp on the dash
- Likely causes
- LikelyControl or feedback wire of heater C chafed through to ground
- PossiblePre-heat relay with an internal fault pulling its output low
- PossibleOutdated engine management software, addressed by a Volvo update
- RareMoisture or corrosion in the relay connector creating a path to ground
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.