2007 ISUZU KB P190 lights

ELECTRICAL-BODY AND CHASSIS 8A-153

CIRCUIT DIAGRAM C24SE (LHD) WITH HEADLIGHTS LEVELING


RTW 680XF006801

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8A-160 ELECTRICAL-BODY AND CHASSIS
TROUBLE SHOOTING
HEADLIGHT
1. Both the headlights (high and low beam) do not light

Checkpoint Trouble Cause Countermeasure


Repair the wiring

Poor ground point contact

NG


Repair open circuit or
connector contact


Repair open circuit


Repair or replace the
combination switch


Voltage between 1
B60 -
ground


Open circuit between lighting
relay and lighting switch

Open circuit between battery
positiv e terminal and lighting
relay

Combination switch continuity

Poor switch contact or sw
faulty

Voltage between
5
X6 - ground and
2
X6 - ground


Reinstall or replace the
lighting relay

Lighting relay

Poor relay contact or relay
faulty

NG
NG
NG
NG
OK
OK
OK
OK

Ground point contact (C2),
(C36)

Repair open circuit

W iring continuity between
B60 - C2


Open circuit

NG
OK



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ELECTRICAL-BODY AND CHASSIS 8A-161
2. High or low beam does not light on both headlights

Checkpoint Trouble Cause Countermeasure


Repair or replace the
combination switch

Dimmer ⋅passing switch
continuity

Poor switch contact or switch
faulty

NG

Repair open circuit or
connector contact
Voltage between
4
X4 - ground and
4
B60 - ground

Open circuit between
headlight and dimmer ⋅passing
switch

NG
OK



3. RH (or LH) high and low beam does not light



Replace the headlight bulb

Headlight connector continuity

Blown filament or air leakage

NG

Repair or replace the wire
and/or connector
W iring continuity between
connector 3
C19 - fuse No.
EB7 or 3
C26 fuse No.
EB8

Open circuit and/or poor
connector contact

NG
OK

Reinstall or replace fuse No.
EB7 or No. EB8
Fuse No. EB7 (10A) or
No. EB8 (10A) (Relay and
fuse box)
(No. EB7 RH, No. EB8: LH)
Poor installation or blown fuse

NG
OK



4. High or low beam does not light on one headlight (RH or LH)

Replace the headlight
assemblyHeadlight connector continuityBlown filament
NG
Repair open circuit or
connector contactW iring continuity between
headlight and dimmer ⋅passing
switchOpen circuit between
headlight and dimmer ⋅passing
switch
NG
OK



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8A-164 ELECTRICAL-BODY AND CHASSIS
TAIL LIGHT, LICENSE PLATE LIGHT, CLEARANCE LIGHT

1. All lights do not light

Checkpoint Trouble Cause Countermeasure



Repair or replace the
combination switch
Lighting switch continuity
between connector
2
B60 - 1 B60


Poor switch point or connector
contact

NG

Reinstall or replace the tail
relay

Tail relay


Poor relay contact or relay
faulty

NG
OK

Reinstall or replace the fuse
No. EB12 (LH), EB11 (RH)
Fuse No. EB12 (LH) or EB11
(RH) (10A, Relay and fuse
box)
Poor fuse contact or blown

NG
OK



2. Tail light does not light


Replace the bulb or repair
connector contact

Tail light bulb continuity

Bulb burned out or poor
connector contact

NG

Repair open circuit or
connector contact
Continuity between connector
3
F5 - 4 F5 (RH)
or 3
F6 - 4 F6 (LH)


Open circuit or poor connector
contact

NG
OK



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ELECTRICAL-BODY AND CHASSIS 8A-173

RTW 780SH000901



RTW 780SH001001

HEADLIGHT BEAM SWITCH
(COMBINATION SWITCH)
Removal
1. Disconnect the battery ground cable.
2. Remove the screws on the lower part of the steering wheel.
3. Remove the horn pad.
4. Remove the wiring connector.
5. Remove the steering wheel fixing nuts.
6. Remove the steering wheel
1.
Refer to the "STEERING" Section of this manual.
7. Remove the Instrument panel lower cover
2.
8. Remove the steering column cover
3.
9. Disconnect the connector.
10. Remove the headlight beam switch (lever) from the steering shaft (combination switch).


Installation
Follow the removal procedure in the reverse order to install the
headlight beam switch (lever).
Pay close attention to the important points mentioned in the
following paragraphs.



Connector
Be absolutely sure that the headlight beam switch connector is
securely connected.
This will prevent a poor contact and an open circuit.



Wire Harness
Do not pinch the wire harnesses between the cluster and the
meter hood during the cluster installation procedure.
W ire damage will result.


AIMING OF HEADLIGHT
Before adjusting the headlights, park the vehicle on a level
surface. Remove any cargo from the vehicle to bring it to curb
weight. Check the tire inflation pressures and correct as
required. Clean the headlight lenses.


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ELECTRICAL-BODY AND CHASSIS 8A-369
Low Fuel Indicator Light
1. Disconnect the fuel gauge unit wire connector.
2. Turn the key switch on. Check that the bulb lights.
If operation is not correct, remove and check the bulb or circuit.
or If check whether low fuel turns on fuel input (B-24) at the
time of open and key on.
∗ meter is check at low fuel



RTW 78ASH001501




Check level sensor operation
1. Remove the fuel gauge unit.
2. Apply battery voltage between terminal (B) and (C) through a 1.12 watt bulb. Check that the bulb lights.
Note:
It will take a short time for the bulb light.
3. Submerge the sensor in fuel. Check that the bulb goes out.
If operation is not correct, replace the fuel tank unit.

BRAKE SYSTEM WARNING LIGHT
The brake system warning light comes on while the parking
brake is set and the engine run position.

RTW 48AMH000101


Note:
The parking brake indicator light circuit is designed to
prevent driving of the vehicle with the parking brake on.
It does not indicate the condition of the parking brake
system.

The parking brake switch is in parallel with the brake fluid
switch.


The brake system warning light also comes on when reservoir
brake fluid level falls below the specified limit with the parking
brake released and the engine run position.

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8A-552 ELECTRICAL-BODY AND CHASSIS
ID Code Check
Numbers of registered ID code shall be checked in this
mode.

Step Action Yes No
1 NOTE: Make sure that the all the doors are closed.
Is the action complete? Go to Step 2 
2 Insert the ignition key into the key lock twice, and then re-
inserted.
NOTE: This step must be carried out within five seconds.
Count the number of times the hazard lights flash on and off.
This number is equal to the number of registrations.
Is the action complete? Go to Step 1 Go to Step 1




RUW 59DLF000101


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ELECTRICAL-BODY AND CHASSIS 8A-585

RTW 38DSH001701
Turn Signal Test
Check the turn signal lamp lights up 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.


060R200289
Programming
Erase Remove Key
To erase remove control key code in the control unit.
1. Check the display of Tech-2 and press “Confirm”
key.
RTW 38DSH001001
2. Enter security code.
3. Press “Not Okay” or “Okay” key.

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