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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-301 STEP 13. Check the sensor power supply line for short harness side. (2) Check for the continuity between terminal 46 and ground. • There should be 2 ohms or more. Q: Does the multi-meter reading exceed the specified value? STEP 14. Check the sensor power supply lines. flow through the harness PCM connector (terminal 46.) Q: Is there any failure in the sensor power supply lines? When a failure is found : Repair if necessary. (Refer to GROUP 90, Circuit Diagrams − MFI System <3.0L STEP 15. Check the ground circuit voltage at PCM backprobing. • Voltage should be 0.5 volts or less. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the multi-meter reading below the specified value? YES : Check connectors D-15, C-71, C-17, C-40 and repair or replace as required. Refer to GROUP 00E, . If connectors D-15, C-71, C-17, C-40 are in good condition, check NO : Go to Step 16. AC004964 AB C-40 HARNESS SIDE AC004965 AB C-40 HARNESS SIDE |