Checking cables
Check the cable between engine control module (ECM) #A22 (#A22) and mass air flow (MAF) sensor #5 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .
Check the ground lead between #A58 (#A58) and mass air flow (MAF) sensor #3 for an open-circuit according to Open-circuit, permanent faults
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 .
- With the ignition on and the mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor #2 should be approximately Ubatt , mass air flow (MAF) sensor #3 should be ground and mass air flow (MAF) sensor #5 should be approximately 1 V.
- For information about signals:
- For 5 cylinder turbocharged engines -2001, see Signal specification
- For 5 cylinder turbocharged engines 2002, see Signal specification
- For B5254T2 -2004, see Signal description
- For B5204T5, B5234T3, B5234T7 and B5244T3 -2004, see Signal specification (B5204T5, B5234T3, B5234T7 and B5244T3 -2004)
- For B5254T4 2004, see Signal specification (B5254T4 2004)
- For 5 cylinder turbocharged engines 2005-, see Signal specification .
- Continue
Refer to Verification