OBD-II code · Powertrain (generic, extended)
P2CAB DC/DC Converter Temperature Sensor F Circuit High
The ECM detects a circuit high fault on the dc/dc converter temperature sensor f circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2CAB?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen sensor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Dcdc Converter Temp Sensor F, Wiring Harness, Dcdc Converter
Related codes
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- P2CA9DC/DC Converter Temperature Sensor F Circuit
- P2CAADC/DC Converter Temperature Sensor F Circuit Low
- P2CACDC/DC Converter Temperature Sensor F Circuit Range/Performance
- P2CADCharge Air Cooler Coolant Pump B Control Circuit/Open
- P2CAECharge Air Cooler Coolant Pump B Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.