Inspection Procedure 1: The engine does not start (cranking occurs but initial combustion does not).

caution

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

If the fuel injection does not work, the ETACS- ECU and the engine-ECU may be defective. It is no problem with the malfunction above when the engine is started with unregistered ignition key.

PROBABLE CAUSES

Malfunction of engine-ECU
Malfunction of ETACS-ECU
Damaged harness wires and connectors
Malfunction of ignition key
Chassis No. not written

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.

STEP 2. M.U.T.-III CAN bus diagnostics

Use the 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 engine-ECU diagnosis code is set.

Q. Is the diagnosis code set?

	Refer to GROUP 13C - Troubleshooting <4N1>, GROUP 13E - Troubleshooting <4D5>.

	Go to Step 4.

STEP 4. M.U.T.-III diagnosis code

Check whether the engine immobilizer system-related diagnosis code is set.

Q. Is the diagnosis code set?

	Refer to diagnosis codes.

	Go to Step 5.

STEP 5. Check that the engine starts.

Q. Does the engine start?

	The procedure is complete.

	Refer to GROUP 13C - Troubleshooting <4N1>, GROUP 13E - Troubleshooting <4D5>. Go to Step 6.

STEP 6. Check that the engine starts.

Q. Does the engine start?

	The procedure is complete.

	Replace the ETACS-ECU.