How To Proceed With Troubleshooting: Notes

HINT:

Perform troubleshooting in accordance with the procedures below. The following is an outline of basic troubleshooting procedures. Details in the "Diagnostics" section show the most effective methods for each circuit. Confirm the troubleshooting procedures for the circuit you are working on before beginning troubleshooting.

1. VEHICLE BROUGHT TO WORKSHOP 
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2. CUSTOMER PROBLEM ANALYSIS 
   1. Ask the customer about the conditions and environment when the problem occurred.
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3. SYMPTOM CONFIRMATION AND PTC (AND FREEZE FRAME DATA) CHECK 
   1. Measure the battery positive voltage.

      Standard: 11 to 14 V (Engine stopped) 

   2. Visually check the wire harness, connectors and fuses for open and short circuits.
   3. Warm up the engine to the normal operating temperature.
   4. Confirm the problem symptoms and conditions, and check for DTCs.

      Result: 

      FREEZE FRAME DATA
      
      

      Result	Proceed to
      DTC is output	B
      DTC is not output	A

   1. A : Go to step   5 
   2. B : GO TO NEXT STEP. 
4. DTC TABLE 
   1. Reconfirm the results obtained in step  3. Then confirm the inspection procedures for the system or part using the DTC table.
      1. NEXT: Go to step   6 
5. PROBLEM SYMPTOMS TABLE 
   1. Reconfirm the results obtained in step  3. Then confirm the inspection procedures for the system or part using the problem symptoms table.
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6. CIRCUIT INSPECTION OR PARTS INSPECTION 
   1. Confirm that the circuit or part is the cause of the malfunction.
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7. REPAIR 
   1. Repair the affected system or part according to the circuit or parts inspection.
   1. NEXT 
8. CONFIRMATION TEST 
   1. After completing repairs, confirm that the malfunction no longer exists. If the malfunction does not reoccur, perform a confirmation test under the same conditions and in the same environment as when it occurred the first time.
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   2. END