P23EECamshaft B Position Signal Output Circuit High (Bank 1)
- Generic OBD-II code · Powertrain
- Can trigger limp mode
- How the car detects it
- P23EE flags a camshaft B, bank 1 output line that the ECM cannot pull low: the voltage stays near supply level, pointing to a short to a battery-fed or 5 V wire, a faulty pull-up in the receiving unit or a failed ECM driver transistor. GM documents the test only for the bank 1 camshaft A counterpart P2616 on the 2019 LTG: monitored while the output is commanded low, a short once resistance to power drops to 0.5 ohm or below, a sample every 100 ms, 40 bad results in 50, Type C. No public manufacturer data exist for P23EE. A driver stage exposed to a hard short can overheat, so locating the short before replacing a module matters. Siblings: open circuit P23EC, low P23ED, the bank 2 high fault P23F1.
- What you may notice
- Code logged while the engine runs normally
- Faults or reduced functions in the module fed by the signal
- Likely causes
- LikelyOutput line shorted to a battery or sensor supply wire
- PossibleFaulty pull-up circuit in the receiving module
- RareECM driver transistor burnt out
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.