How to Proceed With Troubleshooting

POWER SOURCE / WIRING: ELECTRIC POWER CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the electric power control system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

Result





B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK DATA LIST / ACTIVE TEST*

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

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

NEXT -- Continue to next step.

5. CHECK FOR DTC*

(a) Check for DTCs and write them down.

(b) Delete the DTC.

(c) Check for DTC again.

Result





B -- Go to INTRODUCTION How To Proceed With Troubleshooting

C -- Go to step 8
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test Scan Tool Testing and Procedures

(b) Terminals of ECU Pinout Values and Diagnostic Parameters

NEXT -- Continue to next step.

8. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END