Toyota CH-R Service Manual: How To Proceed With Troubleshooting

Toyota CH-R Service Manual / 3zr-fae Battery / Charging / Charging System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

HINT:

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

The following 5 items are important points for problem analysis:

What	Vehicle model, system name
When	Date, time, occurrence frequency
Where	Road conditions
Under what conditions?	Running conditions, driving conditions, weather conditions
How did it happen?	Problem symptoms

3.	INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

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

4.	INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Check if CAN communication DTCs are output.

Click here

Result	Proceed to
CAN communication DTCs are not output.	A
CAN communication DTCs are output.	B

GO TO CAN COMMUNICATION SYSTEM

5.	CHECK FOR DTC*

HINT:

Refer to DTC Check / Clear.

Click here

Result	Proceed to
DTCs are not output.	A
DTCs are output.	B

GO TO DTC CHART

6.	REFER TO PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here

Result	Proceed to
Malfunctioning parts are not confirmed.	A
Malfunctioning parts are confirmed.	B

GO TO STEP 12

7.	OVERALL ANALYSIS AND TROUBLESHOOTING*

HINT:

Refer to Data List / Active Test.

Click here

Result	Proceed to
Malfunctioning parts are not confirmed.	A
Malfunctioning parts are confirmed.	B

GO TO STEP 12

8.	CHECK ECM CIRCUIT

HINT:

Refer to Terminals of ECM.

Click here

GO TO STEP 12

9.	CHECK FOR INTERMITTENT PROBLEMS

HINT:

Refer to Symptom Simulation.

Click here

10.	CONDUCT PARTS INSPECTION

11.	IDENTIFY PROBLEM

12.	ADJUST AND/OR REPAIR

13.	CONDUCT CONFIRMATION TEST

END

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

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Toyota CH-R Service Manual: How To Proceed With Troubleshooting

System Diagram

Problem Symptoms Table

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