DTC P0101-21: Mass or Volume Air Flow A Circuit Range/Performance - Signal amplitude < minimum: Action
WARNING: This page is about a different car, the 2015 Land Rover LR2, 2014 Land Rover LR2, and 2013 Land Rover LR2. However, it is still accessible from the selected car via links, so may be relevant.
- Using the manufacturer approved diagnostic system check datalogger signal - Mass Air Flow Sensor Frequency - (0x033D)
- Using the manufacturer approved diagnostic system check datalogger signal - Air Flow Rate from Mass Air Flow Sensor - (0xF410)
- Check mass air flow sensor connector is correctly latched
- Refer to the appropriate system wiring diagrams and check power feed to mass air flow sensor for open circuit
- Refer to the appropriate system wiring diagrams and check the mass air flow sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Check and install a new mass air flow sensor as required