Checking wiring and components
Check the Intake Air Temperature (IAT) sensor resistance between #1 and #3 on the Mass Air Flow (MAF) sensor. The Intake Air Temperature (IAT) sensor is integrated into the Mass Air Flow (MAF) sensor.
Check signal cable between control module #A5 (#A5) and mass air flow (MAF) sensor #1 for a short-circuit to ground according to Short-circuit to ground, permanent faults
HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #1 and ground should be approximately 5 V.
Remedy as necessary.
Other information
- Connecting the breakout box/accessing the control module, see Connecting the breakout box .
- To access/replace the Mass Air Flow (MAF) sensor, see Mass air flow sensor (MAF), replacing .
- For resistance values, see Component specifications .
- For information about signals on 5-cyl engines, see Signal specification .
- For information about signals on 6 cylinder engines:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
- Continue
Refer to Verification