Checking The Components And Wiring
Check the engine speed (RPM) sensor connector. Check for contact resistance and oxidation.
Check that the engine speed (RPM) sensor is securely installed in the correct position.
HINT: The engine speed (RPM) sensor and its wiring are sensitive to interference from surrounding cables, the starter motor cable for example, or similar high amperage cables.
Check whether any cable with high power consumption is incorrectly installed, i. e. it is too close to the engine speed (RPM) sensor or its wiring.
HINT: This diagnostic trouble code (DTC) can also cause damage to the flywheel reference hole for the engine speed (RPM) sensor.
Remedy as necessary.
Other information
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Refer to VERIFICATION