Toyota Venza: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECM controls the cruise control system of the vehicle. The data and DTCs relating to the cruise control system can be read from the DLC3 of the vehicle. If either DTC or CRUISE OK is not displayed on the multi-information display on the combination meter assembly when checking for DTCs, there may be a problem with either the combination meter assembly or the CAN communication system. Use the Techstream to check and solve the problem.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
3. CHECK INDICATOR
(a) Turn the ignition switch to ON.
(b) Check that the CRUISE main indicator light illuminates when the cruise control
main switch is turned on, and that the indicator light turns off when the main switch
is turned off. If the results are not as specified, inspect the Cruise Main Indicator
Light Circuit (See page ).
HINT:
While driving with cruise control, the ECM activates AUTO CANCEL of the cruise control system when a malfunction occurs in one of the following: vehicle speed sensors, stop light switch assembly, or other related parts. When AUTO CANCEL is activated, the CRUISE main indicator light outputs the blinking pattern shown in the illustration. At the same time, data of the malfunction is stored as a DTC.
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 Ecm
TERMINALS OF ECM
1. CHECK ECM
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A49-7 (T ...
Other materials about Toyota Venza:
Brake Switch "A" / "B" Correlation (P0504)
DESCRIPTION
The stop light switch is a duplex system that transmits 2 signals: STP and ST1-.
These 2 signals are used by the ECM to monitor whether or not the brake system is
working properly. If signals which indicate the brake pedal is being depressed a ...
Fail-safe Chart
FAIL-SAFE CHART
1. FAIL-SAFE FUNCTION
If the following malfunctions occur, the AWD control ECU will stop the
function of 4WD control system or partly change the function to control
the system.
If a malfunction occurs in the senso ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE FUEL SENDER GAUGE
2. SEPARATE FUEL SUCTION PLATE SUB-ASSEMBLY
(a) Disconnect the fuel pump connector from the fuel suction plate.
NOTICE:
Do not damage the wire harness.
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