Toyota Venza: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The transponder key ECU assembly controls the vehicle's immobiliser system functions. Immobiliser system data and Diagnostic Trouble Code (DTC) can be read through the vehicle's Data Link Connector 3 (DLC3).
In some cases, a malfunction may be occurring in the immobiliser system even though the security indicator light is not illuminated.
When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
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.
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 ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK TRANSPONDER KEY AMPLIFIER
(a) Disconnect the D21 transponder key amplifier connector.
(b) Measure the resistance according to the value(s) in the table below.
HINT:
Me ...
Other materials about Toyota Venza:
Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
NOTICE:
When using a vise, do not overtighten it.
PROCEDURE
1. REMOVE STEERING LOCK ACTUATOR ASSEMBLY (w/ Smart Key System)
(a) Secure the steering column assembly in a vise.
(b) Using a center punch, mark the center ...
Speedometer Malfunction
DESCRIPTION
The meter CPU receives vehicle speed signals from the skid control ECU via the
CAN communication system (CAN No. 1 Bus). The speed sensor detects the wheel speed
and sends the appropriate signals to the skid control ECU. The skid control ECU
...
Air Conditioning Control Panel Circuit
DESCRIPTION
This circuit consists of the air conditioning control assembly and the A/C amplifier.
When the air conditioning control assembly is operated, signals are transmitted
to the A/C amplifier through the LIN communication system.
If the LIN commun ...
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