Checking wiring and connectors
Check control module and mass air flow (MAF) sensor connectors for contact resistance and oxidation according to Contact resistance and oxidation and loose connections according to Loose connections (terminals) .
Check signal cable between control module #A22 (#A22) and mass air flow (MAF) sensor terminal 2 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults , and an intermittent open-circuit according to Open-circuit, intermittent faults .
Check ground lead between control module connector #A60 (#B2) and mass air flow (MAF) sensor connector terminal 5 for an intermittent open-circuit according to Open-circuit, intermittent faults .
Other information:
- To connect the breakout box, see Connecting the breakout box
- To access the control module, see Engine control module (ECM), replacing
- To access/replace the Mass Air Flow (MAF) sensor, see Replacing the mass air flow (MAF) sensor
- For information about signals, see Signal specification .
- Continue
. Refer to Information