What are the possible causes of BMW DTC P1300?
NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.
- Faulty camshaft position sensor (CMP)
- Faulty engine control module (ECM) software
- Faulty variable camshaft timing (VANOS) control solenoid
How to repair BMW DTC P1300?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Check if BMW has released a factory service bulletin for P1300 code.
What are the possible symptoms of BMW P1300 code?
- Check engine light on (or engine maintenance warning light soon)
What does BMW P1300 code mean?
The purpose of the diagnostic is to detect when the camshaft reference position is outside the designed range relative to the engine position from the crankshaft and to detect a signal that is not valid. The diagnostic strategy for intake and exhaust camshafts is identical.
Detection of each camshaft position is done by an active Hall effect sensor and a cam wheel, “3 asymmetric teeth”. The camshaft sensor delivers 3 high phases and 3 low phases of different lengths per 720°CRK. The high or low level of the signal at the crankshaft signal reference interval determines the engine position in the combustion cycle. With this information, an engine position is calculated from the crankshaft position sensor within a range of [0 to 720]° CRK.