P1023 Possible Causes
- Faulty Valvetronic eccentric shaft sensor
- Valvetronic eccentric shaft sensor wiring harness open or shorted
- Poor electrical connection in Valvetronic eccentric shaft sensor circuit
- Missing reluctor on Valvetronic eccentric shaft sensor
How is P1023 Code Repaired?
Begin by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
VVT self-learning function bank 1 adjustment range faulty
Symptoms
Possible
Engine light on (or service engine soon warning light)
P1023 Meaning
Valvetronic Adjustment Range is the generic description for code P1023, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have more information about the OBDII P1023 code.