HOW TO PROCEED WITH TROUBLESHOOTING

Carry out troubleshooting in accordance with the procedure described in the flow chart. Here, only the basic procedure is shown. Details are provided in diagnostics, showing the most effective methods for each circuit. Confirm the troubleshooting procedures first for the relevant circuit before beginning troubleshooting of that circuit.

1 Ask the customer about the conditions and the environment when the problem occurred.

2, 3 Confirm the symptoms and the problem conditions, and check the diagnostic trouble codes. (When the problem symptoms do not appear during confirmation, use the symptom simulation method described later on.)

4, 5, 6 Check the results obtained in Step 2, then confirm the inspection procedure for the system or the part which should be checked using the diagnostic trouble code chart or the matrix chart of problem symptoms.

7 Check and repair the affected system or part in accordance with the instructions in Step 6.

8 After completing repairs, confirm that the problem has been eliminated. (If the problem is not reproduced, perform the confirmation test under the same conditions and in the same environment as when it occurred for the first time.)

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

How to Proceed With Troubleshooting

Use the Manual With the Right Hardware

When to See a Mechanic

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