P2CC1Generator Voltage Sense Circuit B
- Generic OBD-II code · Powertrain
- How the car detects it
- P2CC1 is the general fault of a second sense line through which the engine controller reads the actual charging voltage. In the charging system, generator means the alternator; a sense input taps the voltage at the rectifier or battery without load current, so wiring losses do not distort it. Remy describes such a Kelvin sense lead on Chrysler alternators, connected straight to the rectifier plate behind a 2.4 kΩ protective resistor; that terminal is labelled B, which is not the circuit letter of this code. A circuit B is presumably needed only where a second alternator or measuring point exists. No manufacturer documents P2CC1 publicly; Deutz, for example, lists only circuit A codes (P063A, P063C, P063D) for its alternator. Range, low and high: P2CC2 to P2CC4.
- What you may notice
- Battery or charging warning lamp on
- Charging voltage regulated to a fixed or unsuitable value
- Likely causes
- LikelySense wire B, its fuse or connector open or corroded
- PossibleSecond alternator or its regulator faulty
- RareSense input in the engine control module faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €20 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.