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

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio Receiver Type) / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the audio and visual system.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

When 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?	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

HINT:

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

4.	CHECK CABIN

(a) Check that condensation is not likely to occur in the cabin, and that the temperature is not high or extremely low in the cabin.

OK:

Condensation is not likely being produced and the temperature is not high or extremely low.

HINT:

A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
The audio and visual system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

SET CABIN TO APPROPRIATE TEMPERATURE

5.	PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

GO TO STEP 7

6.	PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

(a) Refer to Terminals of ECU.

Click here

7.	CHECK CIRCUIT

(a) Adjust, repair or replace as necessary.

8.	PERFORM 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 ...

Other materials:

Toyota CH-R Service Manual > Inner Rear View Mirror: Removal
REMOVAL PROCEDURE 1. REMOVE INNER REAR VIEW MIRROR STAY HOLDER COVER (w/o Pre-collision System) (a) Disengage the guides to slide the inner rear view mirror stay holder cover. (b) Disengage the claws to remove the inner rear view mirror st ...

Toyota CH-R Service Manual > Ptc Heater Assembly: Inspection
INSPECTION PROCEDURE 1. INSPECT QUICK HEATER ASSEMBLY (for VALEO Made) (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specif ...

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

System Diagram

Problem Symptoms Table

Other materials:

Toyota CH-R Owners Manual

Toyota CH-R Service Manual