door lock ISUZU TF SERIES 2004 Owner's Manual

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)

8A-308 ELECTRICAL-BODY AND CHASSIS






Harness side
D-20 D-5
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
D-5and the
(-) terminal to 3
D-5.)
3
D-5 - 4 D-5.................. Continuity
3 D-5 - 5 D-5.................. Continuity
(Then, ground 3 D-5.)
4
D-5........... Current flow for approx. 1 second
(Disconnect the ground of 14 D-20 , and ground 13 D-20.)
5
D-5........... Current flow for approx. 1 second




Harness side
D-5
3. Door Lock Operation Test

After confirming that there is continuity between the switch
harness side connector terminals 4
D-5 and 5 D-5,
apply the battery voltage to each of the terminals to conduc
t
the operation test.
When the door lock will not operate, check the door lock
actuator for any trouble.

Connecting terminals
5 (L) 4 (L/R)
+ - Unlock
- + Lock
Operation

ELECTRICAL-BODY AND CHASSIS 8A-309




Switch side
D-4
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
D-9

Front Passenger’s Side Door Lock Actuator
1. Actuator Side Connector Circuit

Apply the battery voltage to the actuator connector
terminals to check the operation.
When 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





Actuator side
D-14 D-18

Rear Door Lock Actuator -LH & RH
1. Actuator Side Connector Circuit

Apply the battery voltage to the actuator connector
terminals to check the operation.
When 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

8A-316 ELECTRICAL-BODY AND CHASSIS

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 Window:
Window does not operate One-touch operation for
“DOWN” movement will not
operate

Window operates in only
one direction
Front window on passenger
seat side:
Window does not operate Window does not operate
when operating the driver’s
SW
Window does not operate
when operating the
passenger’s SW
Window does operate in
only one direction when
operating the driver’s SW
Window does operate in
only one direction when
operating the passenger’s
seat side SW

Rear window on left (or right)
side:
Window on left (or right)
side does not operate
Window does not operate
when operating the driver’s
SW
Window does operate in
only one direction when
operating the driver’s SW
Window does operate in
only one direction when
operating the RR-LH (or
RH) side SW


Cable
Harness Relay;
Power
Window


SBF-9
SBF-11

8A-318 ELECTRICAL-BODY AND CHASSIS
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 driver seat side
power window & door lock
SW.
SW. malfunction
NG

Replace the driver seat side
power window motor

Motor malfunction
NG OK

Driver 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 D-5
and 1
D-1, or 8 D-5 and 2
D-1

1. Driver seat side power
window motor function
when connection the motor
connector 1
D-1 to the
battery (+) terminal, and 2
D-1 to the (-) terminal
(Should the motor rotate in
the “UP” direction of the
window)
2. Driver seat side power
window motor function
when connecting the motor
connector 2
D-1 to the
battery (+) terminal, and 1
D-1 to the (-) terminal
(Should the motor rotate in
the “DOWN” direction of the
window)

ELECTRICAL-BODY AND CHASSIS 8A-319
REMOVAL AND INSTALLATION

This photo is based on RHD





DRIVER SEAT SIDE POWER WINDOW &
DOOR LOCK SWITCH
(2 DOORS MODEL)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a 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 in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



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

This photo is based on RHD






FRONT PASSENGER’S POWER WINDOW
& DOOR LOCK SWITCH
(2 DOORS MODEL)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a 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 in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



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

8A-320 ELECTRICAL-BODY AND CHASSIS
This photo is based on RHD
DRIVER SEAT SIDE POWER WINDOW &
DOOR LOCK SWITCH
(4 DOORS MODEL)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a 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 in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.


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

This photo is based on RHD


FRONT PASSENGER’S POWER WINDOW
& DOOR LOCK SWITCH
(4 DOORS MODEL)
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a 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 in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.



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


REAR POWER WINDOW & DOOR LOCK
SWITCH-LH & RH
Removal
1. Disconnect the battery ground cable.
2. Removes the screw in pull cup with the tip of a 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 in the
bezel.
It follows the front with the screwdriver.
The clip has broken when lifting from the rear in the bezel.

ELECTRICAL-BODY AND CHASSIS 8A-323
INSPECTION AND REPAIR

B-8


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






Harness side
D-20 D-5


Driver Seat 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
D-10


Front Passenger’s 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.

Continuity
- 7-8 Continuity

ELECTRICAL-BODY AND CHASSIS 8A-325




Harness side
D-5

Driver Seat Side Power Window Motor
1. Driver Seat 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
- + DOWN
+ - UP



2. Driver Seat 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
+ - DOWN
- + UP

8A-326 ELECTRICAL-BODY AND CHASSIS




Harness side
D-10

Front Passenger’s Power Window Motor
1. Front Passenger’s Power Window Switch & Door Lock
Switch Connector Circuit
Disconnect the motor connector, apply the battery voltage
(12V) to the harness side connector terminals and check
operation.

Connecting terminals
Operation
12 (BR/R) 10 (BR/W) direction
- + DOWN
+ - UP


2. Front Passenger’s 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
+ - DOWN
- + UP