Circuit ISUZU KB P190 2007 Workshop Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-537

CIRCUIT DIAGRAM 4JA1T(L)


RTW 78AXF008101


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ELECTRICAL-BODY AND CHASSIS 8A-539
Keyless Entry System Check
Step Action Value (s) Yes No
1 Check the fuse for the keyless entry power feed
circuit. (EB16 10A)
If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 2
2
1. Check the KCU (Keyless Entry Control Unit)
ground circuit for an open, or short to voltage.
Also, check the KCU ignition feed circuit for an
open or short to ground and the KCU ground
circuit for an open.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 3
3
1. Check the front drive side SW circuit for an open,
or short to voltage.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 4
4
1. Check the operation "Lock / unlock" by using
transmitter (Remote key) on the vehicle.
W as the problem found? — Go to
Diagnostic Chart Go to
Diagnostic Aids


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ELECTRICAL-BODY AND CHASSIS 8A-541
No Remote Key Programmed
Step Action Value (s) Yes No
1 W as the Keyless entry System Check performed?
— Go to Step 2 Go to
keyless
entry
System Check
2 Check the key. Is a key peculiar to a vehicle? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the keyless entry programming functions.
• Transmitter (Remote Key).
W as a problem found? — Go to Step 4 Go to Step 5
4 Perform the keyless entry programming functions.
• Transmitter (Remote Key).
(Refer to “ID code new registration”)
W as the action complete? — Go to Step 5 —
5 Replace the transmitter (Remote Key).
IMPORTANT: The replacement transmitter (Remote
Key) must be programmed the ID code.
W as the action complete? — Verify repair —
Door Lock Actuators Short Circuit to Ground
Step Action Value (s) Yes No
1 W as the Keyless entry System Check performed?
— Go to Step 2 Go to
keyless
entry
System Check
2 Check the door lock actuators circuit.
1. Ignition key position is “OFF”.
2. Disconnect the keyless entry control unit (KCU).
3. Check the door lock actuator circuit for short to ground.
If the problem found, repair as necessary.
W as a problem found? — Verify repair Go to Step 3
3 Check the operation "Lock / unlock" by using
transmitter (Remote key) on the vehicle.
W as the problem found? — Go to Step 4 Verify repair
4 Check the door lock actuator.
If the problem found, repair as necessary.
W as a problem found? — Verify repair Go to Step 5
5 Replace the Keyless entry control unit (KCU).
IMPORTANT: The replacement KCU must be
programmed the security code.
W as the problem found? — Go to Step 7 Verify repair


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8A-542 ELECTRICAL-BODY AND CHASSIS

KEYLESS ENTRY CONTROL UNIT
Removal
1. Remove the glove box.

This Illustration is based on RHD
RTW 580SH001601
2. Disconnect the glove box lamp connector.

This Illustration is based on RHD
RTW 580SH001701
3. Remove the glove box cover.

This Illustration is based on RHD
RTW 580SH001801
4. Remove the bolt of antitheft and keyless entry control unit.
5. Disconnect the keyless entry control unit connector.
6. Remove the keyless entry control unit.


Installation
Follow the removal procedure in the reverse order to install the
keyless entry control unit.

Connector
Be absolutely sure that the keyless entry control unit harness
connector is correctly installed.
This will prevent a poor contact and an open circuit.



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ELECTRICAL-BODY AND CHASSIS 8A-545
Power Door Lock System
General Description
The circuit consists of the door lock (& power window)
switch, door lock actuator for the front and rear door,
tailgate lock actuator and the door lock key switch.
The front door lock switch ‐RH is always provided with
the battery voltage.
The key or the inside lock button on both driver's and
front passenger's door can activate the lock mechanism
of all the doors (including the tailgate).
W hen the driver's door lock switch or the front
passenger's door lock switch is turned on, current flows
for about one second to the door lock actuator of each
door connected in parallel with the front door lock (&
power window) switch ‐LH to activate the actuator to
lock and unlock the doors.

Door Lock Key Switch
Removal and Installation
・ Refer to the Front Door Lock Assembly removal
and installation steps in this section.
Front Door Lock Actuator
Removal and Installation
・ Refer to the Front Door Lock Assembly removal
and installation steps in this section.
Rear Door Lock Actuator
Removal and Installation
・ Refer to the Rear Door Lock Assembly removal
and installation steps in this section.
Tailgate Lock Actuator
Removal and Installation
・ Refer to the Tailgate Lock Assembly removal and
installation steps in this section.

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ELECTRICAL-BODY AND CHASSIS 8A-555

CIRCUIT DIAGRAM HFV6






RTW 78AXF003901

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8A-556 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JJ1-TC / 4JK1-TC (RHD) SOUTH AFRICA




RTW 78AXF019601

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ELECTRICAL-BODY AND CHASSIS 8A-557

CIRCUIT DIAGRAM 4JJ1-TC / 4JK1-TC (RHD) EXCEPT SOUTH AFRICA





RTW 78AXF034201

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8A-558 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JA1T (L)









RTW 78AXF006401

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ELECTRICAL-BODY AND CHASSIS 8A-559

CIRCUIT DIAGRAM 4JJ1-TC / 4JK1-TC (LHD) G.EXP







RTW 78AXF029201

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