P0CC5 code meaning
14 Volt Power Module Current Sensor A/B Correlation
Powertrain system Generic code P0Cxx codes Check engine light
What P0CC5 means
P0CC5 compares the two current sensors of the 14 V power module, the DC/DC converter that feeds the 12 V network from the high-voltage battery. In GM's 2013 eAssist table 13OBDG05C, where the unit is the accessory power module (APM), sensor A measures the input and sensor B the output side. The module computes an input power, multiplies it by an efficiency factor taken from a table (0.99 down to 0.90) and compares the result with the power derived from the output side; a gap above 0.4 kW for 3.75 s within a 5 s window, at 9 to 32 V and with the input power inside the enabling window the table ties to 1.25 kW, is a Type B fault. The check is suspended while the single-sensor codes P0A88/P0A89 or P0C9E/P0C9F are active. One drifting sensor is the usual reason, and a 12 V battery that stays poorly charged is a typical sign.
P0CC5 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P0CC5
- Check-engine lamp after the second faulty trip
- 12 V battery not fully charged or low-voltage warning
Common causes of P0CC5
- Most likelyOffset or gain drift of one current sensor
- PossibleInternal fault of the power module, e.g. real efficiency loss
- Less likelyCalibration or software fault in the module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pm14v current sensor aPm14v current sensor bDcdc converter
What each part of P0CC5 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| C5 | The exact fault in that area. |
What to do next
- Note P0CC5 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0CC5
What does P0CC5 mean?
P0CC5 means "14 Volt Power Module Current Sensor A/B Correlation". P0CC5 compares the two current sensors of the 14 V power module, the DC/DC converter that feeds the 12 V network from the high-voltage battery. It is a generic code, so it means the same on every make.
Is it safe to drive with P0CC5?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0CC5 fail an emissions test?
Yes, it can. P0CC5 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0CC5 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0CC5 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.