COMPONENTS
ON-VEHICLE INSPECTION
1. INSPECT MASS AIR FLOW METER
NOTICE:
|
(a) Read the values using the intelligent tester (MAF).
NOTICE:
|
(1) Turn the ignition switch to the ON position (do not start the engine).
(2) Turn the tester on.
(3) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / PRIMARY / MAF.
(4) Wait 30 seconds, and read the values on the intelligent tester.
Standard condition: Less than 0.70 g/s
REMOVAL
1. REMOVE MASS AIR FLOW METER
(a) Disconnect the mass air flow meter connector.
(b) Remove the 2 screws and mass air flow meter.
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Visually check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter.
OK: There is no foreign matter.
If the result is not as specified, replace the mass air flow meter.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance
INSTALLATION
1. REMOVE MASS AIR FLOW METER
(a) Install the mass air flow meter with the 2 screws.
(b) Connect the mass air flow meter connector.
Light Control Switch Circuit
DESCRIPTION
This circuit detects the state of the headlight dimmer switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Select t ...
Mute Signal Circuit between Radio and Navigation Assembly and
Television Display Assembly
DESCRIPTION
The radio and navigation assembly controls the volume according to the MUTE
signal from the television
display assembly.
The MUTE signal is sent to reduce noise and a popping sound generated when
switching the mode, etc.
If there is an open in the circuit, noise can be heard ...
Back Sonar Sensor LH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and
sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PR ...