Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1235

8-280 ELECTRICAL-BODY AND CHASSIS

TROUBLE SHOOTING

QUICK CHART FOR CHECK POINTS

Check Points

Fuse

CB-15

Power Window

& Door Lock

Switch

Door Lock

Switch

Door Lock Actuator

Cable

Trouble Mode

(20A) Driver’s

side

Driver’s

side

Passenger’

s side

RR-RH RR-LH

Harnes

s

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 8-281

1. All the doors do not lock and unlock

Checkpoint

Trouble

Cause

Countermeasure

Reinstall or replace the fuse
No. CB-15 (20A)

Poor fuse contact or blown

NG

Repair grounding point
(

B-28

) contact

Grounding point (

B-28

)

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 9

D-5

and the ground (Should be
battery voltage present)

Open circuit or poor connector
contact

NG

NG

OK

OK

OK

Fuse No. CB-15 (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 5

D-5

and

B-28

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 6

D-5

and 8

D-5

8-282 ELECTRICAL-BODY AND CHASSIS

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

Checkpoint

Trouble

Cause

Countermeasure

Replace the door lock SW.

Door lock SW. function

SW. malfunction

NG

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

Replace the FRT passenger’s
side door lock actuator

FRT passenger’s side door
lock actuator function

Actuator malfunction

NG

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

Replace the RR door lock
actuator-RH

RR door lock actuator-RH
function

Actuator malfunction

NG

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

Replace the RR door lock
actuator-LH

RR door lock actuator-LH
function

Actuator malfunction

NG

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

Repair grounding point
(

B-28

) contact

Poor grounding point contact

NG

Replace the door lock SW.

Continuity between the door
lock SW. side connector
terminals 1

D-4

and 2

D-4

when the SW is locked and
between is unlocked 3

D-4

and 2

D-4

when the SW.

SW. malfunction

NG

OK

Grounding point (

B-28

)

ELECTRICAL-BODY AND CHASSIS 8-283

REMOVAL AND INSTALLATION

DRIVER SEAT SIDE POWER WINDOW &

DOOR LOCK SWITCH

Removal

1. Remove the switch by pushing the spring with the tip of a

screwdriver.

2. Disconnect the connector.

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.