Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1236

8-284 ELECTRICAL-BODY AND CHASSIS

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

· Remover 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.

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.

ELECTRICAL-BODY AND CHASSIS 8-285

INSPECTION AND REPAIR

Harness side

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 item

Connectin

g terminal

Check 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

5 B Ground

Continuity

5-Ground

- Continuity

6

L/Y

Door lock

actuator (Lock)

(Resistance

)

6-8

-

Continuity

There is some
resistance

8

Y/G

Door lock

actuator

(Unlock)

8-6

-

Continuity

There is some
resistance

9 LG/W

Fuse

CB-15 (20A)

Voltage 9-

Ground

-

Battery voltage
(Approx. 12V)

3-Ground

R/W

3

4-Ground

LG/R

4

8-286 ELECTRICAL-BODY AND CHASSIS

Switch side

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 9

D-5

and the

(-) terminal to 5

D-5

.)

5

D-5

- 6

D-5

. . . . ..Continuity

5

D-5

- 8

D-5

. . . . ..Continuity

(Then, ground 3

D-5

.)

6

D-5

. . ...Current flow for approx. 1 second

(Disconnect the ground of 3

D-5

, and ground 4

D-5

.)

8

D-5

. . ...Current flow for approx. 1 second

Harness side

3. Door Lock Operation Test

After confirming that there is continuity between the switch
harness side connector terminals 6

D-5

and 8

D-5

,

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

8 (Y/G)

6 (L/Y)

+

-

Unlock

-

+

Lock

Operation

ELECTRICAL-BODY AND CHASSIS 8-287

Switch side

Driver’s Side Door Lock Switch

1. Switch Side Connector Circuit

Check continuity between the switch connector terminals

Actuator side

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 itself
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

2

4

+

-

Lock

-

+

Unlock

Operation

Actuator side

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 itself
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

3

-

+

Lock

+

-

Unlock

Operation