Diagnostic Trouble Code (DTC) Information ECM-301A
Condition
The engine control module (ECM) checks that 5 camshaft flanks are detected during 2 crankshaft revolutions (i. e. that all camshaft flanks are detected on one camshaft revolution). The diagnostic trouble code (DTC) is stored if fewer camshaft flanks are detected.
The diagnostic trouble code (DTC) can be diagnosed when the engine speed (RPM) is higher than a set value and refers to the camshaft position (CMP) sensor for the exhaust camshaft.
Substitute Value
- The signal from the engine speed (RPM) sensor is used.
Possible Source
- Intermittent open-circuit in wiring or splices
- Incorrectly adjusted camshafts
- Incorrectly installed camshaft position (CMP) sensor
- Damaged camshaft position (CMP) sensor.
Fault symptom[s]
- None.