INSPECTION PROCEDURE
2: Shifting the S-AWC Drive Mode-selector Does not Change the Mode.
COMMENTS ON TROUBLE SYMPTOM
- If the drive mode cannot be switched by pushing the S-AWC drive mode-selector,
the S-AWC drive mode-selector, the wiring harness wires between the AWC-ECU and the S-AWC drive
mode-selector, the wiring harness wire in the earth circuit for the S-AWC drive mode-selector,
the AWC-ECU or the combination meter may have a problem.
PROBABLE CAUSES
- Damaged wiring harness and connectors
- Malfunction of S-AWC drive mode-selector
- AWC-ECU malfunction
- Malfunction of combination meter
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STEP 1. M.U.T.-III data list.
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Check the following data list. (Refer to ).
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Q.
Is the check result normal?
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Go to Step 4.
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Go to Step 2.
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STEP 2. Follow combination meter trouble symptom procedure 9 "The
combination meter lamp does not illuminate normally or the multi-information display is not displayed
normally."
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Refer to GROUP 54A - Combination Meter.
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Q.
Is the check result normal?
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Go to Step 4.
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Repair it. Then go to Step 3.
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STEP 3. Retest the system.
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Q.
Does the malfunction occur again?
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Go to Step 4.
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This diagnosis is complete.
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STEP 4. Resistance measurement between the S-AWC drive mode-selector
connector terminals
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(1)Remove the S-AWC drive mode-selector (Refer to GROUP 52B - Front floor
console).
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(2)Measure the resistance between the terminals (Refer to ).
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Q.
Is the check result normal?
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Go to Step 5.
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Replace the S-AWC drive mode-selector (Refer to GROUP 52B - Front floor
console). Then go to Step 7.
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STEP 5. Wiring harness check
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(1)Check the wiring harness between the AWC-ECU connector (terminal SW-1) and the
S-AWC drive mode-selector connector.
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(2)Check the connector(s) or terminal(s) or wiring harness above for damage or other
problem.
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Q.
Is the check result normal?
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Go to Step 6.
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Repair the connector(s) or terminal(s) or wiring harness.Then go to Step 7.
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STEP 6. Resistance measurement at the S-AWC drive mode-selector connector
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(1)Disconnect the S-AWC drive mode-selector connector.
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(2)Measure the resistance between the S-AWC drive mode-selector wiring harness side
connector and the body earth. OK: Continuity exists (2 Ω or less)
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Q.
Is the check result normal?
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Go to Step 7.
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Repair the connector(s) or terminal(s) or wiring harness.Then go to Step 7.
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STEP 7. Retest the system.
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Q.
Does the malfunction occur again?
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Replace the AWC-ECU. (Refer to .)
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This diagnosis is complete.
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