ELECTRIC POWER CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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INSPECT BATTERY VOLTAGE

If the voltage is below 11 V, recharge or replace the battery before proceeding.

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INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

1. Using the intelligent tester, check if the CAN communication system is functioning normally.

   Result

   Result	Proceed to
   CAN DTC is not output	A
   CAN DTC is output (for LHD)	B
   CAN DTC is output (for RHD)	C

   
   

   B

   Go to CAN COMMUNICATION SYSTEM (for LHD) Click here

   C

   Go to CAN COMMUNICATION SYSTEM (for RHD) Click here

   A

CHECK DATA LIST / ACTIVE TEST*

1. Check the Data List's load control history (number of items) and the final load control history*. Then write down the information.

   Tech Tips

   Refer to the following description for information about "final load control history".

   
   

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CHECK FOR DTC*

1. Check for DTCs and write them down.

2. Delete the DTC.

3. Check for DTC again.

   Result

   Result	Proceed to
   No DTCs, symptom confirmation and symptom simulation can be performed	A
   No DTCs, symptom confirmation and symptom simulation cannot be performed	B
   DTC output	C

   
   

   B

   Go to INTRODUCTION Click here

   C

   Go to step 8

   A

PROBLEM SYMPTOMS TABLE

B

Go to step 8

A

OVERALL ANALYSIS AND TROUBLESHOOTING*

1. Data List / Active Test Click here

2. Terminals of ECU Click here

   
   

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ADJUST, REPAIR OR REPLACE

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CONFIRMATION TEST

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