2007 ISUZU KB P190 Harness

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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ELECTRICAL-BODY AND CHASSIS 8A-427

TROUBLESHOOTING
QUICK CHART FOR CHECK POINTS
Check Points



Trouble Mode Power
Window
& Door
Lock
Switch Power Window Switch
Power Window Motor

Driver’s
Side Passenger’s
Side RR-LH RR-
RH Driver’s
Side Passenger’s
Side RR-LH RR-
RH
All windows will not operate
Lock SW does not function Driver’s W indow:
W indow does not operate One-touch operation for
“DOW N” movement will not
operate


W indow operates in only
one direction

Front window on passenger
seat side:
W indow does not operate
W indow does not operate
when operating the driver’s
SW

W indow does not operate
when operating the
passenger’s SW

W indow does operate in
only one direction when
operating the driver’s SW

W indow does operate in
only one direction when
operating the passenger’s
seat side SW


Rear window on left (or right)
side:
W indow on left (or right)
side does not operate

W indow does not operate
when operating the driver’s
SW

W indow does operate in
only one direction when
operating the driver’s SW

W indow does operate in
only one direction when
operating the RR-LH (or
RH) side SW



Cable
Harness
Relay;
Power
Window


SBF9

C20

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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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8A-434 ELECTRICAL-BODY AND CHASSIS
INSPECTION AND REPAIR






B8
RTW 78ASH002901

Power Window Relay
Check continuity between the relay terminals.
2- 1........................ No continuity
(W hen battery voltage is applied between
3 and 4)
2- 1........................ Continuity





Harness side
D20 D5


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

Terminal No. Wire
color Connecting to Check item Connectin
g terminal Check condition Standard
6 G/R Power window
relay Voltage 6-Ground Starter SW “ON” Approx.
12V
7 BR/R Power window
8 BR/W motor

3 B Ground Continuity 3-Ground - Continuity






Harness side
D10


Front Passenger’s Power Window Switch
1. Harness Side Connector Circuit
Disconnect the switch connector, and check voltage and continuity between the harness side connector terminals as
shown in the following table.

Continuity
-
7-8
Continuity

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ELECTRICAL-BODY AND CHASSIS 8A-435
Terminal No. Wire
color Connecting to Check item Connectin
g terminal Check condition Standard
6 G/R Power window
relay Voltage 6-Ground Starter SW “ON” Approx.
12V
8 BR/R
7 BR/W Power window
motor Continuity 8-7
- Continuity
1,3 B Ground Continuity 1,3-Ground - Continuity






Harness side
D12 D16


Rear Power Window Switch-LH & RH
1. Harness Side Connector Circuit
Disconnect the switch connector, and check voltage and continuity between the harness side connector terminals as
shown in the following tables.


D12 (RR-LH)
Terminal No. Wire
color Connecting to Check item Connectin
g terminal Check condition Standard
6 G/R Power window
relay Voltage 6-Ground Starter SW “ON” Approx.
12V
8 BR/R
7 BR/W Power window
motor Continuity 8-7
- Continuity
3 B
4 B Ground Continuity 3,4-Ground - Continuity
D16 (RR-RH)
Terminal
No. Wire
color Connecting to Check item Connectin
g terminal Check condition Standard
6 G/R Power window
relay Voltage 6-Ground Starter SW “ON” Approx.
12V
8 BR/R
7 BR/W Power window
motor Continuity 8-7
- Continuity
3 B Ground Continuity 3-Ground - Continuity


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8A-436 ELECTRICAL-BODY AND CHASSIS




Harness side
D5

Driver’s Side Power Window Motor
1. Driver’s Side Power Window & Door Lock Switch
Connector Circuit
Disconnect the switch connector, apply the battery voltage (12V) to the harness side connector terminals and check
operation.
Connecting terminals Operation
7 (BR/R) 8 (BR/W ) direction
- + DOW N
+ - UP




D1


2. Driver’s Side Power Window Motor Connector Circuit
Disconnect the switch connector, apply the battery voltage (12V) to the motor side connector terminals and check
operation.
Connecting terminals Operation
1 2 direction
+ - DOW N
- + UP


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