Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE TRANSMITTER BATTERY
Inspection
INSPECTION
PROCEDURE
1. INSPECT DOOR CONTROL TRANSMITTER
(a) Inspect operation of the transmitter.
(1) Remove the battery (lithium battery) from the transmitter (See page
).
(2) Install a new or normal battery (lithium battery). HINT: If a new or normal battery is not available, first connect 2 new 1.5 V batteries in series. Then connect leads to the batteries and apply 3 V to the transmitter, as shown in the illustration. |
|
(3) From outside the vehicle, approximately 1 m (3.28 ft.) away from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch.
OK:
The door lock can be operated via the transmitter.
The LED comes on more than once.
(b) Inspect the battery capacity.
(1) Remove the battery from the electrical key transmitter that does not operate.
Attach a lead wire (0.6 mm (0.0236 in.) in diameter or less including wire sheath)
with tape or equivalent to the negative terminal (see page
).
NOTICE:
Do not wrap the lead wire around a terminal, wedge it between the terminals, or solder it. A terminal may be deformed or damaged, and the battery will not be able to be installed correctly.
(2) Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery. |
|
(3) Using an oscilloscope, check the transmitter battery voltage waveform.
HINT:
When measuring the battery voltage, while operating the lock sensor of a door
handle, bring the electrical key transmitter within the entry operating range to
perform the measurement. For the entry operating range, refer to SYSTEM DESCRIPTION
(See page ).
Standard voltage:
Item |
Content |
---|---|
Tester Connection |
Battery positive (+) - Battery negative (-) |
Tool Setting |
0.5 V/DIV., 100 ms/DIV. |
Condition |
Engine switch OFF, all doors closed and lock sensor touched |
Specified Condition |
2.2 to 3.2 V (Refer to the waveform) |
If the result is not as specified, replace the transmitter battery.
Installation
INSTALLATION
PROCEDURE
1. INSTALL TRANSMITTER BATTERY
Indicators and warning lights
The indicator and warning lights on the instrument cluster and center panel
inform the driver of the status of the vehicle’s various systems.
For the purpose of explanation, the following illustration displays all indicators
and warning lights illuminat ...
Transponder Key Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE AIR CONDITIONING UNIT ASSEMBLY
HINT:
Refer to the procedure up to Remove Air Conditioning Unit Assembly (See page
).
2. REMOVE TRANSPONDER KEY ECU ASSEMBLY
(a) ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
ACTIVE TORQUE CONTROL 4WD SYSTEM
DTC Code
Detection Item
Trouble Area
See page
C1241/94
Low Power Supply Voltage
1. Battery
2. ECU-IG1 fuse
...