STEP 1. Confirm the vehicle status and the ambient conditions.
- Confirm the vehicle status or the ambient conditions to check whether the auto stop should be carried out or not (For details, refer to the relevant Technical Information Manual - GROUP 13A - AS&G system).
Are the conditions for prohibiting the auto stop satisfied?
Check end.
Go to Step 2.
STEP 2. M.U.T.-IIISE data list
- Item 166: Deteriorated battery odometer (Last)
- Item 167: Deteriorated battery odometer (2nd Last)
- Item 168: Deteriorated battery odometer (3rd Last)
OK: 0 km (Ignition switch: ON)
Are the all items displayed as "0 km"?
Go to Step 3.
- Write the check result and go to Step 3
.
STEP 3. M.U.T.-IIISE diagnosis code
STEP 4. M.U.T.-IIISE data list
- Item 184: Driver's side door switch
OK:
- Open (Driver's side door: Opened)
- Close (Driver's side door: Closed)
| note | If the driver's side door is opened, the AS&G display screen in the combination meter should blink. |
Is the check result normal?
Go to Step 5.
Perform the troubleshooting of the driver's side door switch circuit (Refer to GROUP 54A - ETACS - Input Signal Procedures - The Front Door Switch (Driver's side) Signal is not Sent to The ETACS-ECU
).
STEP 5. M.U.T.-IIISE data list
- Item 192: Seat belt fasten status
OK:
- Fastened (Driver’s seat belt: Fastened)
- Not fastened (Driver’s seat belt: Not fastened)
| note | If the driver’s seat belt is unfastened, the AS&G display screen in the combination meter should blink. |
Is the check result normal?
Go to Step 6.
Perform the troubleshooting of the seat belt reminder function circuit (Refer to GROUP 54A - Combination Meter - Symptom Procedures - Seat Belt Reminder Function Does Not Work Normally
).
STEP 6. M.U.T.-IIISE data list
- Item 185: Hood latch switch
OK:
- Close (Hood: Closed)
- Open (Hood: Opened)
| note | If the engine hood is opened, the AS&G display screen in the combination meter should blink. |
Is the check result normal?
Go to Step 7.
Perform the troubleshooting of the engine hood latch switch circuit (Refer to GROUP 54A - ETACS - Input Signal Procedures - The Hood Latch Switch Signal is not Sent to The ETACS-ECU
).
STEP 7. M.U.T.-IIISE data list
STEP 8. M.U.T.-IIISE data list
STEP 9. M.U.T.-IIISE data list
STEP 10. M.U.T.-IIISE data list
- Item 181: Ambient temperature
OK: At ambient temperature (atmospheric temperature) or equivalent
Is the check result normal?
Go to Step 11.
Perform the troubleshooting of the ambient temperature sensor (Refer to GROUP 54A - Combination Meter - Symptom Chart
).
STEP 11. M.U.T.-IIISE data list
STEP 12. M.U.T.-IIISE data list
- Item 6: Engine coolant temperature sensor
OK:
- Engine cold state: At ambient temperature (atmospheric temperature) or equivalent.
- Engine hot state: At 80 - 120°C
Is the check result normal?
Go to Step 13.
Perform the troubleshooting of the engine coolant temperature sensor. Inspection chart for diagnosis code (Refer to
).
STEP 13. M.U.T.-IIISE data list
STEP 14. Confirm the check result.
| note | If the conditions below are satisfied, go to "YES" regardless of the check result on Step 2. |
- Check the following items.
- After a malfunction occurs, the negative (-) cable is disconnected from the battery once.
- After a malfunction occurs, the connector is disconnected from the engine-ECU once.
- The odometer reading exceeds 262,140 km.
Does the check result on Step 2 indicate other than 0 km?
Go to Step 15.
Go to Step 18.
STEP 15. M.U.T.-IIISE data list
STEP 16. M.U.T.-IIISE data list
- Turn the ignition switch to "ON" position (But do not start the engine).
- Check the data list.
- Item 169: Vehicle consumption current
OK: When the headlamp is lit, the numerical value should increase.
Is the check result normal?
Replace the battery.
Replace the battery current sensor.
STEP 17. Judge the battery life.
- 1. Turn the ignition switch to "ON" position (But do not start the engine).
- 2. Check the M.U.T.-IIISE data list.
- Item 169: Vehicle consumption current
- Adjust the electrical load so that the displayed value should be 30 ± 2 A.
- 3. Continue the conditions of Step 2 for 120 seconds and discharge the battery.
- 4. Run the engine for 10 seconds after the engine start and check on the battery deterioration with M.U.T.-IIISE data list.
- Item 152: Check battery flag
OK: OFF (Engine: Idle operation)
- 5. After checking that the data list item 152 is displayed, swiftly turn the ignition switch to "LOCK" (OFF) position and leave it for 10 seconds.
- 6. Repeat Steps 1-5 four times. Check that M.U.T.-IIISE data list item 152 always shows "OFF".
Is the check result normal?
Recharge the battery because the battery is discharged during the check. (Refer to GROUP 54A - Battery - On-vehicle Service - Charging
). After the battery is charged, go to Step 19.
Replace the battery.
STEP 18. M.U.T.-IIISE data list
- Item 204: AS&G operation (A/C ECU)
OK: "Enable" is displayed
Is the check result normal?
Go to Step 19.
The A/C-ECU would possibly output the auto stop prohibition signal. Recheck the auto stop prohibition signal of the A/C-ECU.
STEP 19. Check the trouble symptom.