2007 ISUZU KB P190 BATTERY

8A-370 ELECTRICAL-BODY AND CHASSIS




VEHICLE SPEED SENSOR (INSTALLED
ON THE TRANSMISSION)
The speed sensor is installed on the rear portion of the
transmission.
The number of pulses generated is four pulses per one rotation
of the pinion shaft.



Vehicle Speed Sensor Inspection
1. Connect the vehicle speed sensor connector 1 E44to the
battery (+) terminal and 2
E44 to the (-) terminal.
2. Connect a resistance of 1.3K ohm to 5K ohm (1/4 W o
r
more) between connectors 1 E44 and 3 E44


CAUTION:
Be extremely careful not to connect the battery (+)
terminal to the connector 3
E44 .
This may damage the vehicle speed sensor.



3. Rotate the shaft of the vehicle speed sensor slowly and
measure the voltage at the both ends with a digital tester.

The voltage, with one rotation of shaft fluctuates four times in
the following range: 10 to 14V - 2V or less.




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8A-408 ELECTRICAL-BODY AND CHASSIS
1. All the doors do not lock and unlock

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C21 (20A)

Poor fuse contact or blown

NG


Repair grounding point contact

Grounding point C2


Poor grounding point contact


Repair open circuit or
connector contact
Voltage between the driver’s
side power window & door
lock SW harness side
connector terminal 1
D5
and the ground (Should be
battery voltage present)

Open circuit or poor connector
contact

NG
NG
OK
OK
OK

Fuse No. C21 (20A, Fuse box)


Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG
Replace the driver’s side
power window & door lock
SW .
Driver’s side power window &
door lock SW . function

SW . malfunction

NG
OK
Continuity between 3 or 4

D4 or 2 D24 and
C2




2. All the doors do not get locked (or unlocked)


Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG

Replace the driver’s side
power window & door lock
SW .
Driver’s side power window &
door lock SW . function

SW . malfunction

NG
OK
Continuity between the driver’s
side power window & door
lock SW harness side
connector terminals 14
D20
and 6
D20


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8A-410 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION


This illustration is based on 2 doors and RHDRTW 780SH002601








DRIVER’S SEAT SIDE POWER WINDOW
& DOOR LOCK SWITCH
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the screwdriver.
3. Remove the switch bezel by pushing the spring with the tip of a screwdriver.
4. Disconnect the connector.

ATTENTION:
When removing a switch bezel lift from the front of the
bezel.
It follows the front with the screwdriver.
The clip can break when lifting from the rear of the bezel.



Installation
To install, follow the removal steps in the reverse order.



DRIVER’S SIDE DOOR LOCK SWITCH
Removal
1. Door Lock ASM
• Refer to the removal steps of the DOORS in section 10
“BODY”.
2. Door Lock Switch



Installation
To install, follow the removal steps in the reverse order.


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8A-412 ELECTRICAL-BODY AND CHASSIS
INSPECTION AND REPAIR







Harness side
D20 D5


Driver’s Side Power Window & Door Lock
Switch
1. Harness Side Connector Circuit
Check voltage and continuity between the switch harness side connector terminals as shown in the following table.

Terminal No. Wire
color Connecting to Check item Connectin
g terminal Check condition
Standard
Door lock SW
Driver’s Lock Continuity
(Lock) side door
Unlock No continuity
Door lock SW
Driver’s Lock No continuity
(Unlock) side door
Unlock Continuity
3 (D5) L/R Ground Continuity 3-Ground
- Continuity

4 (D5)
L/R Door lock
actuator (Lock) (Resistance)

4-5
- Continuity
There is some
resistance

5 (D5)
L Door lock
actuator
(Unlock)
5-4
- Continuity
There is some
resistance
1 (D5) LG/W Fuse
C21 (20A) Voltage 1- Ground
- Battery voltage
(Approx. 12V)
14-Ground
L/R
14 (D20)
13-Ground
L/Y
13 (D20)

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ELECTRICAL-BODY AND CHASSIS 8A-413





Harness side
D20 D5

2. Switch Side Connector Circuit
Remove the switch connector, and check continuity and voltage between the switch connector terminals.
(Connect the (+) terminal of the battery to 1
D5and the
(-) terminal to 3
D5.)
3
D5 - 4 D5.................. Continuity
3 D5 - 5 D5.................. Continuity
(Then, ground 3 D5.)
4
D5.......... Current flow for approx. 1 second
(Disconnect the ground of 14 D20 , and ground 13 D20.)
5
D5.......... Current flow for approx. 1 second




Harness side
D5


3. Door Lock Operation Test

After confirming that there is continuity between the switch
harness side connector terminals 4
D5 and 5 D5,
apply the battery voltage to each of the terminals to conduct
the operation test.
W hen the door lock will not operate, check the door lock actuator for any trouble.
Connecting terminals
5 (L) 4 (L/R)
+ - Unlock
- + Lock
Operation


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8A-414 ELECTRICAL-BODY AND CHASSIS




Switch side
D4

Driver’s Side Door Lock Switch
1. Switch Side Connector Circuit
Check continuity between the switch connector terminals
Terminal No.
SW position 1 2 3
Lock

Unlock




Actuator side
D9


Front Passenger’s Side Door Lock Actuator
1. Actuator Side Connector Circuit
Apply the battery voltage to the actuator connecto
r
terminals to check the operation.
W hen the door lock actuator is checked on the vehicle and there is no continuity, and when the door lock actuator itsel
f
is checked and no trouble is found, check the circuit
between the door lock actuator and the driver seat side
power window & door lock switch for any failure.
Connecting terminals
1 2
+ - Lock
- + Unlock
Operation





Door lock actuator Rear – RH/LH Harness side
D14 D18


Rear Door Lock Actuator -LH & RH
1. Actuator Side Connector Circuit
Apply the battery voltage to the actuator connecto
r
terminals to check the operation.
W hen the door lock actuator is checked on the vehicle and there is no continuity, and when the door lock actuator itsel
f
is checked and no trouble is found, check the circuit
between the door lock actuator and the driver seat side
power window & door lock switch for any failure.
Connecting terminals
1 2
+ - Lock
- + Unlock
Operation



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8A-428 ELECTRICAL-BODY AND CHASSIS

1. All windows do not operate

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
C20 (30A)

Poor fuse contact or blown

NG


Replace the circuit breaker
C20 (50A or 60A)

C20 (50A or 60A Fuse box)
function

Circuit breaker malfunction


Repair grounding points
contact

Grounding points C2


Poor grounding point contact

NG
NG
OK
OK
OK

Fuse C20 (30A, Fuse box)


Replace the power window
relay

Power window relay
malfunction

NG
Repair an open circuit or a
poor connection of the
connectors between 1
C108
and 2
B8
Voltage between the power
window relay harness side
connector terminal 2
B8
and the ground (Should be
battery v oltage present)

Open circuit or poor connector
contact

NG
OK

Power window relay function

OK
Repair an open circuit or a
poor connection of the
connectors between 1
B8
and 1
B56 and 6 D5

Open circuit or poor connector
contact

NG Voltage between 6 D5 and
the ground (Should be battery
v oltage present)

OK
Repair an open circuit or a
poor connection of the
connectors between 3
D5
and
C2 , or 3 B8 (12
C107 ) and C109

Open circuit or poor connector
contact

NG
Continued on the next page

Voltage between 3
D5 or 3
B8 and the ground



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ELECTRICAL-BODY AND CHASSIS 8A-429
Checkpoint Trouble Cause Countermeasure

Replace the driver seat side
power window & door lock
SW .
SW . malfunction
OK
NGDriver seat side power window
& door lock SW . function
Continued from the previous page



2. Lock switch does not function

Checkpoint Trouble Cause Countermeasure

Replace the driver seat side
power window & door lock
SW .
SW . malfunction
NGDriver seat side power window
& door lock SW . function



3. Window on the driver’s side does not operate

Checkpoint Trouble Cause Countermeasure

Replace the driv er seat side
power window & door lock
SW .
SW . malfunction

NG


Replace the driv er seat side
power window motor

Motor malfunction

NG
OK

Driv er seat side power
window & door lock SW .
function
OK

Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG Continuity between 7 D5
and 1
D1 , or 8 D5 and 2
D1
1. Driv er seat side power window motor function
when connection the motor
connector 1
D1 to the
battery (+) terminal, and 2
D1 to the (-) terminal
(Should the motor rotate in the “UP” direction of the
window)
2. Driv er seat side power window motor function
when connecting the motor
connector 2
D1 to the
battery (+) terminal, and 1
D1 to the (-) terminal
(Should the motor rotate in the “DOW N” direction of
the window)


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