2004 ISUZU TF SERIES keyless entry

ELECTRICAL-BODY AND CHASSIS 8A-3
PAGE
Power Window ........................................................................................................... 8A- 310
Audio, Clock and Cigarette Lighter .......................................................................... 8A- 329
Power Door Mirror ...................................................................................................... 8A- 337
Rear Defogger ............................................................................................................ 8A- 349
SRS-Air Bag ................................................................................................................ 8A- 358
Transfer Case Control Module .................................................................................. 8A- 361
Anti-Lock Brake System ............................................................................................ 8A- 373
Immobilizer ................................................................................................................. 8A- 376
Keyless Entry ............................................................................................................. 8A- 385
Anti Theft ....................................................................................................................8A- 400
Auto Cruise ................................................................................................................. 8A- 412
Trailer Hitch ................................................................................................................ 8A- 415
Connector List ................................................................................................................8A- 418

ELECTRICAL-BODY AND CHASSIS 8A-385
KEYLESS ENTRY
PARTS LOCATION (RHD)







RTW48AXF024201 & RTW48AXF024301

8A-392 ELECTRICAL-BODY AND CHASSIS

TECH-2 OPERATION AND PROGRAMING
KEYLESS ENTRY
General Description
When the anti-theft and keyless entry control unit and/or the
transmitters (remote keys) are replaced, the security codes
and/or transmitter ID codes must be programmed by using he
Tech-2. The following pages show the procedures to program
in regard to the anti-theft and keyless entry system. Please
refer to Tech-2 scan tool user’s guide in detail.








901RW180
Legend
(1) PCMCIA Card (4) DLC Cable
(2) RS 232 Loop Back Connector (5)Tech–2
(3) SAE 16/19 Adaptor

8A-396 ELECTRICAL-BODY AND CHASSIS
RTW38DLH000101
Menu
The left table shows witch functions are used for the
available equipment versions.
NOTE: Marked items are not applied for keyless entry
system.

DTC
On OBD has three options available in the Tech-2
DTC mode to display the enhanced information
available.

Read DTC Info Ordered By Priority.

Read DTC Info As Stored By ECU.

Clear DTC and Alarm Code Info.

Clear DTC Information
To clear Diagnostic Trouble Codes (DTCs), Use the
diagnostic scan tool “Clear DTC Information” function.

Tech-2 Data Display
The Tech-2 data values represent values that would
be seen on a normally-keyless entry system.



RTW38DSH001601
Actuator Test
Unlock/Lock Test
Check whether opening and closing of a door lock
can be performed by operation of Tech-2.
1. Turn the key “OFF”.
2. Turn the key “ON”.
3. Check the display and test menu.
4. Operate the Tech-2.

ELECTRICAL-BODY AND CHASSIS 8A-411
ANTITHEFT AND KEYLESSENTRY CONTROL UNIT


Removal and Installation

Refer to Antitheft And Keylessentry Control Unit in this
section.

ELECTRICAL-BODY AND CHASSIS 8A-419


No. Connector face No. Connector face
B-32
NOT USED B-44

Keyless Entry (B)
B-33

Illumination control B-45
WhiteAlarmer control unit
B-34
NOT USED B-46
Gray
Rear defogger timer
B-35
Yellow
Infrator; passenger side B-47
WhiteGlove box illumination
B-36
Yellow
Infrator; Driver side B-48
BlackG/sensor
B-37
~
B-39 NOT USED B-49
White
A/T Lever
B-40
Black
Acc socket relay B-50
WhitePower/3rd start switch
B-41
Natural
Acc socket B-51
~
B-52 NOT USED
B-42
White
Acc socket B-53
WhiteJ/B I1
B-43

Keyless Entry (A) B-54
WhiteJ/B I2

IMMOBILIZER SYSTEM 11A-31

Diagnostic procedure


Once the cause of DTC is repaired or gone,
engine can be operated normally, and present
DTC becomes history code.


History code is canceled by no repeat failure on 25
consequence ignition key on afterward.


History code cannot be canceled by batter
y
connector disconnected.
Clearing Diagnostic Trouble Codes
IMPORTANT:
Do not clear DTCs unless directed to do
so by the service information provided for each
diagnostic procedure. When DTCs are cleared, the
Failure Record data which may help diagnose an
intermittent fault will also be erased from memory.
Verifying Vehicle Repair
Verification of vehicle repair will be more
comprehensive for vehicles with immobilizer system
diagnostic. Following a repair, the technician should
perform the following steps:
1.
Review and record the Fail Records for the DTC
which has been diagnosed.
2.
Clear DTC(s).
3.
Operate the vehicle within conditions noted in the
Fail Records.
4.
Monitor the DTC status information for the DTC
which has been diagnosed until the diagnostic test
associated with that DTC runs.
Following these steps are very important in verifying
repairs on immobilizer systems. Failure to follow these
steps could result in unnecessary repairs.
Diagnostic Aids
Check the condition for system parts.



Installation condition, poor connection, damage,
system parts malfunction. Harness, Fuse, Relay,
Immobilizer coil (antenna), Key, Meter, Immobilize
r
control unit (ICU), Engine control module (ECM).
NOE: Breakage of immobilizer fuse does not operate
immobilizer system. Check engine lamp flashes at this
time.

Check the Electro-Magnetic Interference (EMI)



Location of vehicle check

Move the vehicle to a new location and perform
the check again.


Non-OEM Parts.

Switch is "OFF" or remove the Non-OEM parts and
perform the check again.


Other

Remove the accessory and another key from key.

Check the other items.



Battery voltage is low.


Immobilizer programming functions.

Must be programmed immobilizer system.


Registration for security code, immobilizer control
unit parts number.


Key switch operation.

Immobilizer system may detect a history DTC b
y
the timing of ON-OFF of a key switch.


Active the immobilizer system.


Keyless entry system is malfunction.


Anti theft system is malfunction.

Check the operation

Check the operation "Lock / unlock" by using transmitte
r
(key) on the vehicle.

ANTITHEFT SYSTEM 11B – 1
SECTION 11B
ANTITHEFT SYSTEM
CONTENTS
PAGE
Service Precaution ........................................................................................................ 11B – 3
General Description ...................................................................................................... 11B – 4
Activating the anti-theft system.............................................................................. 11B – 4
Antitheft system alarm operating conditions ........................................................ 11B – 4
Function of a keyless entry system ......................................................................... 11B – 4
Status LED ................................................................................................................. 11B – 4
Hazard relay ............................................................................................................... 11B – 4
Switches .................................................................................................................... 11B – 4
Receiver......................................................................................................................11B – 5
Range of communication ......................................................................................... 11B – 5
Diagnosis ................................................................................................................... 11B – 5
Transmitter (into remote key) .................................................................................. 11B – 5
Transmitter (into remote key) power ...................................................................... 11B – 5
Super lock .................................................................................................................. 11B – 5
No proper transmitter is available, what should be done for the system ?........ 11B – 6
DIAGRAMS AND SCHEMATICS ................................................................................... 11B – 7
SYSTEM WIRING DIAGRAMS .................................................................................. 11B – 7
COMPONENT WIRING LOCATORS (LHD) ............................................................... 11B – 8
WIRING DIAGRAM (LHD).......................................................................................... 11B – 9
WIRING DIAGRAM (LHD).......................................................................................... 11B – 10
WIRING DIAGRAM (LHD).......................................................................................... 11B – 11
WIRING DIAGRAM (LHD).......................................................................................... 11B – 12
WIRING DIAGRAM (RHD with keyless) ................................................................... 11B – 13
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 14
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 15
WIRING DIAGRAM (RHD) ......................................................................................... 11B – 16
WIRING DIAGRAM (RHD) ......................................................................................... 11B – 17
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 18
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 19
WIRING DIAGRAM (Super Lock).............................................................................. 11B – 20
Antitheft control unit (A) .......................................................................................... 11B – 21