Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Initial Inspection and Diagnostic Overview




Diagnosis and Repair Workflow

Work Flow





Detailed Flow

1. CUSTOMER INFORMATION

Interview the customer to obtain detailed information about the symptom.


GO TO 2

2. INITIAL INSPECTION

Perform an initial inspection of all accessible transfer case harnesses and connectors under the vehicle.


GO TO 3

3. DTC CHECK

Perform "DTC check". Refer to [SDT Function (4WD)] Scan Tool Testing and Procedures.


GO TO 4

4. SYMPTOM

Check for symptoms. Refer to [4WD System Symptoms: Symptom Table] Symptom Table.


GO TO 5

5. MALFUNCTIONING PARTS

Repair or replace the applicable parts.


GO TO 6

6. SYSTEM OPERATION

Check system operation.


GO TO 7

7. DTC CHECK

Perform "DTC check".

Are any DTCs displayed?
YES
GO TO 5
NO
Inspection End