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- Connect the M.U.T.-III to the diagnosis connector.
- Ignition switch: ON
- When the V.C.I. is energised, the V.C.I. indicator lamp should be
illuminate in
a green colour.
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OK: The V.C.I. is indicator lamp
illuminates in a green colour.
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Q.
Is the check result normal?
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- Measure battery voltage during cranking.
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Q.
Is the check result normal?
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Check
battery (Refer to GROUP 54A - Battery - On-vehicle Service
- Battery
Test ).
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Q.
Is the check result normal?
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Repair
or replace the connector.
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- Voltage between terminal No. 16 and earth.
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Q.
Is the check result normal?
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![](../../../buttons/03btn002.png)
Check intermediate
connectors D-240, D-404
and D-405, and repair if necessary. If intermediate connectors are normal,
check and repair
harness between D-127 (terminal No. 16) diagnosis connector and
battery.
- Check power supply line for open/short circuit.
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- Resistance between terminal No. 4 and earth, also between terminal No.
5
and earth.
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OK: Continuity (2 Ω or
less)
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Q.
Is the check result normal?
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Refer
to M.U.T.-III Reference Manual - Troubleshooting Procedures.
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![](../../../buttons/03btn002.png)
Check and repair
harness between diagnosis connector
and body earth.
- Check and repair harness between D-127 (terminal
No. 4) diagnosis connector and body earth.
- Check and repair harness between D-127 (terminal No. 5)
diagnosis connector and
body earth.
- Check earthing line for open circuit and damage
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- Using M.U.T.-III, perform CAN bus line diagnosis.
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Q.
Is the check result normal?
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Check
engine-ECU <M/T> or engine-A/T-ECU <A/T> power supply,
engine control
relay and ignition switch IG1 system (Refer to Inspection Procedure 20 ).
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Correct CAN bus line (Refer to GROUP
54D - Troubleshooting - Can
Bus Diagnosis Table ).
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