Code No.C1613: 4WD Mode Switch Stuck
OPERATION
DIAGNOSIS CODE SET CONDITION
- The 4WD switch is stuck on
PROBABLE CAUSES
- 4WD switch malfunction
- Damaged harness wires and connectors
- Malfunction of 4WD-ECU
DIAGNOSIS PROCEDURE |
STEP 1. M.U.T.-III data list |
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. Check the wiring harness between 4WD switch connector and 4WD-ECU connector terminal sw-1. |
| Check the output line for short circuit. |
Q.
Is the check result normal?
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| Go to Step 3. |
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| Repair the defective connector or the wiring harness. |
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STEP 3. 4WD switch inspection |
| Refer to . |
Q.
Is the check result normal?
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| Go to Step 4. |
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| Replace the 4WD switch (Refer to ). Then go
to Step 5. |
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STEP 4. Check whether the diagnosis code is reset. |
Q.
Is the diagnosis code No.C1613 set?
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| Replace the 4WD-ECU (Refer to ). Then go to
Step 5. |
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| Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction ). |
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STEP 5. Check whether the diagnosis code is reset. |
Q.
Is the diagnosis code No.C1613 set?
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| Return to Step 1. |
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| This diagnosis is complete. |
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