Mitsubishi L200. Manual — part 712

HAZARD WARNING LAMP SWITCH

CHASSIS ELECTRICAL

54A-215

SYMPTOM PROCEDURES

Inspection Procedure 1: The hazard warning lamps do not illuminate.

CAUTION

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM
If the hazard warning lamps do not illuminate, the
hazard warning lamp input signal circuit or the
ETACS-ECU may be defective.

PROBABLE CAUSES

• Malfunction of the hazard warning lamp switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check that the turn-signal lamps
operate.
Check that the turn-signal lamps illuminate normally.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to inspection procedure 11 "None of
the turn-signal lamps illuminate

P.54A-137

."

STEP 2. M.U.T.-III diagnosis code.
When the electric motor switch is turned to the
"LOCK" (OFF) position, check that the ETACS-ECU

does not set the diagnosis code.

Q: Is the diagnosis code set?

Hazard Warning Lamp Circuit

ETACS-ECU

HAZARD
WARNING
LAMP SWITCH

TURN-SIGNAL
LAMP RELAY: LH

TURN-SIGNAL
LAMP RELAY: RH

INPUT SIGNAL

· FRONT TURN-SIGNAL
LAMP (LH)
· REAR TURN-SIGNAL
LAMP (LH)
· SIDE TURN-SIGNAL
LAMP (LH)
· COMBINATION METER

· FRONT TURN-SIGNAL
LAMP (RH)
· REAR TURN-SIGNAL
LAMP (RH)
· SIDE TURN-SIGNAL
LAMP (RH)
· COMBINATION METER

RELAY
BOX

FUSIBLE
LINK

23

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple

J/B SIDE

HAZARD WARNING LAMP SWITCH

CHASSIS ELECTRICAL

54A-216

YES :

Refer to diagnosis code chart

P.54A-494

.

NO :

Go to Step 3.

STEP 3. Check the power supply circuit.
When the electric motor switch is at the "LOCK"
(OFF) position, check that the functions below work
normally.

• Lamp reminder function

• Central door locking system

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Refer to inspection procedure A-1 "Check
the battery power supply circuit to the
ETACS-ECU

P.54A-512

."

STEP 4. M.U.T.-III data list
Check the input signal from the hazard warning lamp
switch.

• Operate the hazard warning lamp switch.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Refer to inspection procedure 8 "The hazard
warning lamp switch signal is not received

P.54A-536

."

STEP 5. Retest the system.
Check that the hazard warning lamps illuminate.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the ETACS-ECU and register the
ID codes (Refer to

P.54A-39

).

REMOVAL AND INSTALLATION

M1541501000035

Item
No.

Item name

Normal condition

26

Hazard warning lamp
switch

OFF to ON (only
when switch is
operated)

AC509437AB

1

2

3

HORN

CHASSIS ELECTRICAL

54A-217

INSPECTION

HAZARD WARNING LAMP SWITCH
CHECK

M1541501100032

HORN

REMOVAL AND INSTALLATION

M1542100200871

Removal steps

•

Centre upper box hood or RV meter
hood, lower panel assembly and
centre lower panel assembly (Refer
to GROUP 52A, Instrument Panel
Assembly ).

1.

Centre upper panel assembly
(Refer to GROUP 52A, Instrument
Panel Assembly ).

2.

Instrument panel switch holder

3.

Hazard warning lamp switch

Switch position

Tester
connection

Specified
condition

Released

1

− 2

Open circuit

Pressed

1

− 2

Continuity
(Less than 2
ohms)

AC503635

3 4

1 2

AB

AC900914 AB

1

2

21 ± 4 N·m

ACCESSORY SOCKET

CHASSIS ELECTRICAL

54A-218

INSTALLATION SERVICE POINT

>>A<< HORN (LO)/HORN (HI) INSTALLATION

Use the earth bolts as the mounting bolts for horn
(LO) and horn (HI). The earth bolts have "E" mark on
the bolt heads.

INSPECTION

HORN RELAY CONTINUITY CHECK

M1542100400552

ACCESSORY SOCKET

REMOVAL AND INSTALLATION

M1542300200499

Refer to GROUP 52A, Rear floor console assembly .

Removal Steps

•

Radiator grille (Refer to
GROUP 51, Radiator grille
.)

>>

A

<<

1. Horn <LO>

>>

A

<<

2. Horn <HI>

AC805322

Battery voltage

Tester
connection

Specified
condition

Not applied

3

− 4

Open circuit

• Connect terminal 2

to the positive
battery terminal

• Connect terminal 1

to the negative
battery terminal

Continuity
(2

Ω or less)

AC502554

AH

4

2

3

1

Horn relay

4

1

2

3