Toyota Venza: 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 listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
- When an open circuit indication is displayed by the self-check function, check for DTCs and troubleshoot according to each inspection procedure.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
System does not operate at all. |
Clearance warning ECU power source circuit |
|
|
Clearance sonar main switch circuit |
|
|
|
Clearance warning ECU assembly |
|
|
|
System cannot be turned off. |
Clearance sonar main switch circuit |
|
|
Clearance warning ECU assembly |
|
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|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Frozen indication is displayed in self-check function. |
Precaution |
|
|
Replace ultrasonic sensor in part where frozen indication is displayed |
- |
|
|
Clearance warning ECU assembly |
|
|
|
Combination meter assembly (shift indicator) operates normally, but detection operates when shift lever is in P, or detection does not operate when shift lever is in any position other than P (front ultrasonic sensor). |
CAN communication system |
|
|
Clearance warning ECU assembly |
|
|
|
Combination meter assembly (shift indicator) operates normally, but detection operates when shift lever is in any position other than R, or detection does not operate when shift lever is in R (rear ultrasonic sensor). |
CAN communication system |
|
|
Clearance warning ECU assembly |
|
|
|
Detection operation operates even when vehicle speed exceeds the operation condition speed. |
CAN communication system |
|
|
Clearance warning ECU assembly |
|
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Sonar detection operation is normal but buzzer operation is intermittent. |
Clearance warning buzzer circuit |
|
|
Clearance warning ECU assembly |
|
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Detection operation is normal but sonar displays of multi-information display do not appear. |
CAN communication system |
|
|
Meter / gauge system |
|
|
|
Clearance warning ECU assembly |
|
Operation Check
OPERATION CHECK
1. MALFUNCTION BUZZER
(a) Open circuit or frozen
(1) If an open circuit is detected between the ultrasonic sensors and the clearance
warning ECU assembly, if a sensor malfunction ...
Terminals Of Ecu
TERMINALS OF ECU
1. CLEARANCE WARNING ECU ASSEMBLY
(a) Disconnect the D79 clearance warning ECU assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table
...
Other materials about Toyota Venza:
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
NOTICE:
When using a vise, do not overtighten it.
PROCEDURE
1. INSTALL STEERING LOCK ACTUATOR ASSEMBLY (w/ Smart Key System)
(a) Secure the steering column assembly in a vise.
(b) Temporarily install the ste ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY
(a) Mount the brake master cylinder sub-assembly in a vise.
NOTICE:
Place aluminum plates on the vise to prevent damage to the brake master cylinder
sub-assembly.
(b) U ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS
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