2007 ISUZU KB P190 fuse

ELECTRICAL-BODY AND CHASSIS 8A-407
TROUBLESHOOTING
QUICK CHART FOR CHECK POINTS
Check Points Fuse C21
(20A) Power
Window &
Door Lock Switch Door
Lock
Switch Key Cylinder
switch Door Lock Actuator

Cable


Trouble Mode Driver’s
side Driver’s
side D/S P/S Passen
ger’s side RR-RH RR-LH
Harness
1. All the doors do not
lock and unlock
2. All the doors do not get locked (or
unlocked)

3. Driver’s side door
does not get locked
(or unlocked)

4. FRT passenger’s side
door does not get
locked (or unlocked)

5. RR door-RH does not
get locked (or
unlocked)

6. RR door-LH does not
get locked (or
unlocked)

7. Door lock does not
operate when
operating from the
driver’s seat side


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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-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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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-462 ELECTRICAL-BODY AND CHASSIS
TROUBLESHOOTING
CIGARETTE LIGHTER
1. Lighter does not pop out after being pushed in. It does not become hot.

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C12 (20A)

Poor Fuse No. C-12 (20A,
Fuse box) contact or blown

NG


Replace the lighter

Lighter continuity between
center part and outer area

Open circuit or poor connector
contact


Repair open circuit or
connector contact
Voltage between connector 1

B21 and the ground at
starter SW . is ACC position
(Should be battery voltage
present)

Open circuit or poor connector
contact

NG
NG
OK
OK
OK

Audio system (System should
receive power)


Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG
Continuity between connector
1
B22 and the ground



2. Lighter pops out prematurely before becoming hot

Repair or replace the lighter
and/or casingDeformed lighter or casing
NGLighter and casing



3. Lighter becomes too hot

Repair or replace the lighter
and/or casingDeformed lighter and casing
NGLighter and casing



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8A-472 ELECTRICAL-BODY AND CHASSIS
TROUBLESHOOTING
QUICK CHART FOR CHECK POINT
Check Point Fuse Door Mirror Door Mirror

Trouble Mode C11
(10A) Control
Switch LH RH
1. Mirrors on the both sides do not operate
2. Mirror on the left (or right) side does not
operate
3. Mirrors on the both sides operate only in
the vertical
(or horizontal) direction





4. Mirror on the left side operates only in
the vertical

(or horizontal) direction



5. Mirror on the right side operates only in
the vertical
(or horizontal) direction



Cable
Harness

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ELECTRICAL-BODY AND CHASSIS 8A-473
DOOR MIRROR CONTROL SWITCH
1. Mirrors on the both sides do not operate

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C11 (10A)

Poor fuse contact or blown

NG


Repair grounding point
C2
contact

Grounding point
C2


Poor grounding point contact

Repair an open circuit or a
poor connection of the
connectors between the fuse
No. C11 (10A) and 4
D19
Voltage between the door
mirror control SW . harness
side connector terminal
4
D19 and the ground
(Should be battery voltage
present)

Open circuit or poor connector
contact

NG
NG
OK
OK
OK

Fuse No. C11 (10A, Fuse box)


Repair open circuit or
connector contact

Open circuit or poor connector
contact

NG Continuity between the door
mirror control SW harness
side connector terminal
8
D19 and C2

Replace the door mirror
control SW .

Door mirror control SW .
function

SW . malfunction

NG
OK

Repair open circuit or
connector contact

Continuity between 7
D19
and 12
H36 (or 12 H37 )


Open circuit or poor connector
contact

NG
OK




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8A-478 ELECTRICAL-BODY AND CHASSIS

• W hen there is no continuity at either one of the circuit
No, 5, 7, 8, or 10, the motor in the mirror of the circuit o
r
the circuit itself is defective.
Terminal No. Wire
color Connection to Check item
Connecting
terminal Check condition Standard
7 W /B
LH mirror & RH
mirror Continuity 7-Ground - No continuity
4 R/Y Fuse C11 (10A) Voltage 4-Ground
Starter SW “ACC”
position Approx.
12V
10 W /R RH mirror-LH/RH 10-7 -
2 B/W RH mirror-Up/Down 2-7 -
3 B/R LH mirror-Up/Down Continuity 3-7 - Continuity
8 B Ground 8-Ground -
9 W /G LH mirror-LH/RH 9-7 -






Harness side
D19


Door Mirror
1. Door Mirror Control Switch Connector Circuit
Disconnect the switch connector
D19 , apply the battery
voltage to the harness side connector terminals and check
its function.
Connector
No. D19
Operating
Terminal
Mirror No. 9 10 7 3 2direction

+ - Left
- + Right
- +Up
+ -Down
+ - Left
- + Right
- + Up
+ - Down
Left
Right


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