OBD-II code · Powertrain (generic, extended)
P23E9 Camshaft A Position Signal Output Circuit Open Bank 2
Camshaft A Position Signal Output Circuit Open Bank 2: the circuit is open. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.
Is it safe to drive with P23E9?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in output wiring
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.2 h
- Emissions test
- Usually unaffected
- Parts involved
- Cam Position Signal A B2 Output
Related codes
- P23ECCamshaft B Position Signal Output Circuit Open Bank 1
- P23EFCamshaft B Position Signal Output Circuit Open Bank 2
- P23E6EGR C Control Stuck Closed
- P23E7EGR C Flow Insufficient Detected
- P23E8EGR C Flow Excessive Detected
- P23EACamshaft A Position Signal Output Circuit Low Bank 2
- P23EBCamshaft A Position Signal Output Circuit High Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.