If the fuel injection does not work, WCM and the DIESEL system may have a problem. This symptom
is not considered abnormal when the engine is started by an ignition key that has not been registered.
PROBABLE CAUSES
Malfunction of the DIESEL system
Malfunction of WCM
Malfunction of CAN bus line
Malfunction of the transponder
Chassis No. not programmed
DIAGNOSIS PROCEDURE
STEP 1. Battery voltage check
Measure the battery voltage when cranking. OK: 8 V or more
Q.
Is the check result normal?
Go to Step 2.
Check the battery (Refer to ).
STEP 2. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q.
Is the check result normal?
Go to Step 3.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
STEP 3. M.U.T.-III other system diagnosis code
Check whether the DIESEL system-related diagnosis code is set.
Q.
Is the diagnosis code set?
Refer to GROUP 13A - Troubleshooting .
Go to Step 4.
STEP 4. M.U.T.-III diagnosis code
Check whether the WCM-related diagnosis code is set.
Q.
Is the diagnosis code set?
Refer to .
Go to Step 5.
STEP 5. Check that the engine starts
Q.
Does the engine start?
The diagnosis is complete.
Refer to GROUP 13A - Troubleshooting .
When the cause of the failure cannot be tracked down by the troubleshooting in GROUP 13A, replace
WCM and register the ID codes (Refer to ).
Check the battery (Refer to 
).