Powertrain
Definition only
Lights the check engine lamp
P2CAA: DC/DC Converter Temperature Sensor F Circuit Low
Standardized SAE J2012 code · P2Cxx codes
What does P2CAA mean?
The ECM detects a circuit low fault on the dc/dc converter temperature sensor f circuit. Reading cannot be used reliably for control.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Signal wire shorted to ground
- Medium Internal sensor short
- Low Connector pins corroded - high contact resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2CAA on the same make and model first.
P2CAA in the community
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