obd codes are PO123 and P0015 what are they and what do I need to fix
P0123 Throttle Position sensor / switch "A" circuit high input
P0015 Incorrect position of the exhaust camshaft
P0123 is generic code , the MBZ uses a throttle actuator position sensor and a electronic throttle actuator , This does not mean this code is invalid, it is valid but not descriptive , circuit high means a disconnection, the throttle actuator if not properly connected can and will retard the exhaust cam timing,
36.2k questions
32.2k answers
1.3k comments
22.8k users