MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-371
DIAGNOSIS
STEP 1. Check harness connector B-06 at the knock
sensor and harness connector B-10 at ECM for damage.
Q: Is the harness connector in good condition?
YES : Go to Step 2.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
P.00E-2
. Then go to Step 3.
STEP 2. Check for short circuit to power supply between
knock sensor connector B-06 (terminal No. 2) and ECM
connector B-10 (terminal No. 25).
NOTE: Check harness after checking intermediate connector
B-24. If intermediate connector is damaged, repair or replace it.
Refer to GROUP 00E, Harness Connector Inspection
P.00E-2
.
Then go to Step 5.
Q: Is the harness wire in good condition?
YES : Replace the ECM. When the ECM is replaced,
register the ID code. Refer to GROUP 42B, Diagnosis
− ID Code Registration Judgment Table <Vehicles
with KOS>
P.42B-15
or GROUP 42C, Diagnosis
− ID
Codes Registration Judgment Table <Vehicles with
WCM>
P.42C-10
. Then go to Step 3.
NO : Repair it. Then go to Step 3.
STEP 3. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle − Pattern 23
P.13A-11
.
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0328 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.