2004 ISUZU TF SERIES fuse

8A-302 ELECTRICAL-BODY AND CHASSIS
TROUBLESHOOTING
QUICK CHART FOR CHECK POINTS
Check Points
Fuse
C-14
(20A) Power
Window &
Door Lock
Switch Door
Lock
SwitchKey CYLN
Der switch Door Lock Actuator

Cable


Trouble Mode Driver’s
side Driver’s
side D/S P/S Passen
ger’s
side RR-RH RR-LHHarness
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

ELECTRICAL-BODY AND CHASSIS 8A-303
1. All the doors do not lock and unlock

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C-14 (20A)

Poor fuse contact or blown
NG

Repair grounding point
C-2
contact

Grounding point
C-2


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
D-5
and the ground (Should be
battery voltage present)

Open circuit or poor connector
contact
NG NG OK
OK OK

Fuse No. C-14 (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 4
D-4
and
C-2




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
D-20
and 6
D-20

ELECTRICAL-BODY AND CHASSIS 8A-307
INSPECTION AND REPAIR








Harness side
D-20 D-5

Driver Seat 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 itemConnectin
g terminalCheck condition Standard
Door lock SW
Driver seat Lock Continuity
(Lock) side door
Unlock No continuity
Door lock SW
Driver seat Lock No continuity
(Unlock) side door
Unlock Continuity
3 (D-5) L/R Ground
Continuity 3-Ground - Continuity

4 (D-5)
L/R Door lock
actuator (Lock) (Resistance)

4-5
- Continuity
There is some
resistance

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

ELECTRICAL-BODY AND CHASSIS 8A-317
DIESEL W/SRS MODEL
1. All windows do not operate

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
SBF-11 (30A)

Poor fuse contact or blown
NG

Replace the circuit breaker
SBF-9 (50A)

SBF-9 (50A, Fuse box)
function

Circuit breaker malfunction


Repair grounding points
C-2
contact


Grounding points
C-2


Poor grounding point contact
NG NG OK
OK OK

Fuse SBF-11 (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
C-108
and 2
B-8
Voltage between the power
window relay harness side
connector terminal 2
B-8
and the ground (Should be
battery voltage 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
B-8
and 1
B-56 and 6 D-5

Open circuit or poor connector
contact
NG Voltage between 6 D-5 and
the ground (Should be battery
voltage present)

OK
Repair an open circuit or a
poor connection of the
connectors between 3
D-5
and
C-2 , or 3 B-8 (12

C-107 )
and C-2

Open circuit or poor connector
contact
NG
Continued on the next page

Voltage between
C-2 and
the ground

ELECTRICAL-BODY AND CHASSIS 8A-335
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. C-12 (15A)

Poor Fuse No. C-12 (15A,
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
B-21 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
B-22 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

ELECTRICAL-BODY AND CHASSIS 8A-341
TROUBLESHOOTING
QUICK CHART FOR CHECK POINT
Check Point Fuse
Door Mirror Door Mirror

Trouble Mode C-11
(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

8A-342 ELECTRICAL-BODY AND CHASSIS
DOOR MIRROR CONTROL SWITCH
1. Mirrors on the both sides do not operate

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C-11 (10A)

Poor fuse contact or blown
NG

Repair grounding point
C-2
contact

Grounding point
C-2


Poor grounding point contact

Repair an open circuit or a
poor connection of the
connectors between the fuse
No. C-11 (10A) and 4
D-19
Voltage between the door
mirror control SW. harness
side connector terminal
4
D-19 and the ground
(Should be battery voltage
present)

Open circuit or poor connector
contact
NG NG OK
OK OK

Fuse No. C-11 (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
D-19 and C-2

Replace the door mirror
control SW.

Door mirror control SW.
function

SW. malfunction
NG OK

Repair open circuit or
connector contact

Continuity between 7
D-19
and 2
H-24 (or 2 H-25 )


Open circuit or poor connector
contact
NG OK

ELECTRICAL-BODY AND CHASSIS 8A-347



When there is no continuity at either one of the circuit
No, 5, 7, 8, or 10, the motor in the mirror of the circuit or
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 C-11 (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
D-19


Door Mirror
1. Door Mirror Control Switch Connector Circuit
Disconnect the switch connector
D-19 , apply the battery
voltage to the harness side connector terminals and check
its function.

Connector
No. D-19
Operating
Terminal
Mirror No.9 10 7 3 2direction
+ - Left
- + Right
- +Up
+ -Down
+ - Left
- + Right
- + Up
+ - Down
Left Right