Isuzu KB P190. Manual — part 1337

8A-410 ELECTRICAL-BODY AND CHASSIS

REMOVAL AND INSTALLATION

This illustration is based on 2 doors and RHD

RTW780SH002601

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.

ELECTRICAL-BODY AND CHASSIS 8A-411

FRT PASSENGER’S SIDE DOOR LOCK

ACTUATOR

Removal

1. Door Lock ASM

• Refer to the removal steps of the DOORS in Section 10

“BODY”.

2. Door Lock Actuator

• Remove the door lock switch fixing bolts.
• Disconnect the door lock link rod.
• Disconnect the door lock switch connector.

Installation

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

RR DOOR LOCK ACTUATOR-LH & RH

Removal

1. Door Lock ASM

• Refer to the removal steps of the DOORS in section 10

“BODY”.

2. Door Lock Actuator

• Remove the actuator fixing bolts.
• Disconnect the door lock link rod.
• Disconnect the actuator connector.

Installation

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

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)

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

D5

and 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.

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