Inspection Procedure
2: The electric motor unit does not start.
COMMENTS ON TROUBLE SYMPTOM
If the electric motor unit does not start, the ETACS-ECU, the EV-ECU or the electric motor
control unit (EMCU) may be defective. It is no problem with the malfunction above when the electric
motor is started with unregistered electric motor key.
PROBABLE CAUSES
Malfunction of ETACS-ECU
Malfunction of EV-ECU
Malfunction of EMCU
Damaged harness wires and connectors
Malfunction of electric motor key
Chassis No. not written
DIAGNOSIS PROCEDURE
STEP 1. Auxiliary battery voltage check
Measure the auxiliary battery voltage when cranking. OK: 8 V or more
Q.
Is the check result normal?
Go to Step 2
Check the auxiliary battery (Refer to ).
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 EV-ECU and EMCU diagnosis code is set.
Q.
Is the diagnosis code set?
Refer to GROUP 54D, Troubleshooting <EV-ECU> or <EMCU>.
Go to Step 4
STEP 4. M.U.T.-III diagnosis code
Check whether the immobilizer system related diagnosis code is set to ETACS-ECU.
Q.
Is the diagnosis code set?
Refer to .
Go to Step 5
STEP 5. Check that the electric motor unit starts.
Q.
Does the electric motor unit start?
The procedure is complete.
Refer to GROUP 54D, Troubleshooting . Replace
the ETACS-ECU and register the ID codes when the cause of the failure cannot be tracked down
by performing the troubleshooting in GROUP 54A (Refer to ).
Check the auxiliary battery (Refer to 
).