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G531330t4 : CHECK THE MAF SENSOR SUPPLY CIRCUIT VOLTAGE 1. Disconnect the MAF sensor electrical connector, PI14. 2. Key on, engine off. 3. Measure the voltage between: MAF sensor connector PI14, harness side Battery
Pin 01
Negative terminal
Is the voltage greater than 10 volts? -> Yes GO to Pinpoint Test G531330t3.
-> No REPAIR the circuit between the MAF sensor electrical connector and the battery. This circuit includes the EMS control relay and fuse 14 of the front power distribution box. For additional information, refer to the wiring diagrams. CLEAR the DTC and test the system for normal operation. G531330t3 : CHECK THE MAF SENSOR SENSING CIRCUIT FOR SHORT 1. Key off. 2. Measure the resistance between: MAF sensor connector PI14, harness side Battery
Pin 03
Negative terminal
Is the resistance less than 10,000 ohms? -> Yes REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC and test the system for normal operation.
-> No GO to Pinpoint Test G531330t2.
G531330t2 : CHECK THE MAF SENSOR SENSING CIRCUIT FOR SHORT 1. Measure the resistance between: |