P0EA6DC/DC Converter B Over Temperature
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P0EA6 means the second DC/DC converter, B, has reached a temperature beyond its permitted limit. Unlike a temperature sensor code, the reading itself is accepted as true; the unit is simply too hot and will normally reduce or stop its output to protect itself. FCA lists it as DC/DC Converter 2 Over Temperature for the 2019 Cherokee (KL) with the 3.2 V6 and stop-start (sales code EHK), in its PCM reflash bulletins (18-077-22, earlier 18-023-19 REV. B), which apply to MIL complaints with a list of start-stop related codes; no threshold is published. Under CARB the function of such parts has to be supervised. Blocked cooling air, high load on the 12 V network or a weak internal power stage are typical causes. Converter A uses P0D32 for the same fault.
- What you may notice
- MIL on
- Start-stop unavailable while the converter is hot
- Electrical consumers affected during engine restart
- Likely causes
- PossibleCooling air or heat sink of converter B obstructed
- PossibleSustained high load on the 12 V network
- PossibleControl software misjudging the temperature condition
- RareWeak internal power stage of converter B
- 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: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.