ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK THROTTLE BODY ASSEMBLY
(a) Check the throttle control motor operating sounds.
(1) Turn the ignition switch to ON.
(2) When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises are emitted from the motor.
If friction noise exists, replace the throttle body.
(b) Check the throttle position sensor.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Enter the following menus: Powertrain / Engine / Data List / Throttle Sensor Position.
(5) Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "Throttle Sensor Position" is within the specification.
Standard throttle valve opening percentage:
60% or more
NOTICE:
When checking the standard throttle valve opening percentage, make sure the shift lever is in N.
If the percentage is less than 60%, replace the throttle body assembly.
Intake Air Temperature Circuit Low Input (P0112,P0113)
DESCRIPTION
The intake air temperature sensor, in the mass air flow meter, monitors
the intake air temperature. The intake air temperature sensor has a built-in
thermistor with a resistance that varies according to the temperature of
the ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the P4 ECU connector.
(b) Measure the resistance and voltage according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness si ...
Data Signal Circuit between Navigation Receiver Assembly and Extension Module
DESCRIPTION
The stereo component tuner assembly sends the image data signal to the navigation
receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
1.
CHECK NAVIGATION WIRE
(a) Remove the navigation wire (See pag ...