Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1504

8-116 ELECTRICAL-BODY AND CHASSIS

7. Passing light does not function when dimmer switch is operated

Checkpoint

Trouble Cause

Countermeasure

Repair or replace the dimmer

switch

Dimmer switch

Poor switch point contact

NG

Repair open circuit between

4

X-1

- 14

C-42

Voltage between

14

C-42

- ground (Should

be battery voltage present)

Open circuit

NG

OK

8. Headlight beam does not change when dimmer switch is operated

Repair or replace the dimmer

switch

Dimmer switch

Loose beam lever or foreign

material in switch

NG

ELECTRICAL-BODY AND CHASSIS 8-117

TAIL LIGHT, LICENSE PLATE LIGHT, CLEARANCE LIGHT AND ILLUMINATION
CONTROLLER

1. All lights do not light

Checkpoint

Trouble Cause

Countermeasure

Repair or replace the

combination switch

Lighting switch continuity

between connector

8

C-42

- 7

C-42

Poor switch point or connector

contact

NG

Reinstall or replace the tail

relay

Tail relay

Poor relay contact or relay

faulty

NG

OK

Reinstall or replace the fuse

No. EB-12

Fuse No. EB-12 (15A, Relay
and fuse box)

Poor fuse contact or blown

NG

OK

2. Tail light does not light

Replace the bulb or repair

connector contact

Tail light bulb continuity

Bulb burned out or poor

connector contact

NG

Repair open circuit or

connector contact

Continuity between connector

3

T-6

- 4

T-6

(RH)

or 3

T-1

- 4

T-1

(LH)

Open circuit or poor connector

contact

NG

OK

8-118 ELECTRICAL-BODY AND CHASSIS

3. License plate light does not light

Checkpoint

Trouble Cause

Countermeasure

Repair open circuit or

connector contact

Continuity between

connector 1

T-3

- 2

T-3

Open circuit or poor connector

contact

NG

Replace the bulb or repair

connector contact

License plate light bulb
continuity

Bulb burned out or poor

connector contact

NG

OK

4. Clearance light does not light

Replace the bulb or repair

connector contact

Clearance light bulb continuity

Bulb burned out or poor

connector contact

NG

5. Illumination controller does not operate

Repair knob installation or

replace the controller

Turn the illumination controller

knob (Brightness should

change)

Loose knob or faulty controller

NG

Repair short circuit or replace

the wire

Disconnect the illumination

controller connector (Light

should be dim)

Short circuit

NG

OK

ELECTRICAL-BODY AND CHASSIS 8-119

REMOVAL AND INSTALLATION

HEADLIGHT

Removal

1. Remove the radiator grille center bolt.

2. Use a screwdriver to raise the clip and release the lock.

Place a clean rag beneath the screwdriver tip to protect the

body painted surfaces.

3. Remove the radiator grille.

4. Remove the headlight rim.

5. Disconnect the headlight connector.

6. Remove the headlight.