Toyota Venza: How To Proceed With Troubleshooting

Toyota Venza Service Manual / Park Assist / Monitoring / Rear View Monitor System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the rear view monitor system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

(a) Ask the customer about the problems and the conditions at the time the malfunction occurred to make sure the problem symptom was not temporarily caused by radio waves in the surrounding environment.

HINT:

The rear view monitor display may be temporarily distorted due to radio waves around the vehicle.

Problem Symptom	Cause
Both of the following conditions are met The problem symptom indicates a rear view monitor display malfunction and the problem symptom cannot be reproduced. DTC C1622 is output as "Hist" only.*	The display may be temporarily distorted when the vehicle is close to an object that transmits radio waves, such as a telecommunication tower, an airport or a truck equipped with a transceiver.

*: DTCs output as "Hist" will not be output again after DTCs are cleared.

3.	INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

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

4.	CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally (See page ).

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

GO TO CAN COMMUNICATION SYSTEM

5.	CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output (See page ).

(b) Clear the DTCs (See page ).

Result	Proceed to
No DTCs are output	A
DTCs are output	B

GO TO STEP 11

6.	PROBLEM SYMPTOMS CONFIRMATION

Result	Proceed to
Symptom does not occur	A
Symptom occur	B

GO TO STEP 8

7.	SYMPTOM SIMULATION

(a) Refer to Symptom Simulation (See page
)

8.	CHECK IF SAME SYMPTOM APPEARS IN OTHER SYSTEM

(a) Refer to the Navigation System (See page ).*1

(b) Refer to the Audio and Visual System (See page ).*2

*1: for Navigation System
*2: for Audio and Visual System

Result	Proceed to
Symptom does not appear	A
Symptom appears (for Navigation System)	B
Symptom appears (for Audio and Visual System)	C

GO TO NAVIGATION SYSTEM

GO TO AUDIO AND VISUAL SYSTEM

9.	PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table (See page ).

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

GO TO STEP 11

10.	PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

(a) Refer to Terminals of ECU (See page ).

11.	ADJUST, REPAIR OR REPLACE

12.	CONFIRMATION TEST

END

System Diagram

SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line ECM Navigation Receiver Assembly*1 Radio and ...

System Description

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