Mitsubishi L200. Manual — part 707

REAR COMBINATION LAMP

CHASSIS ELECTRICAL

54A-195

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1541402500025

Refer to GROUP 00

− Contents of troubleshooting .

TROUBLE SYMPTOM CHART

M1541401000436

SYMPTOM PROCEDURES

Inspection Procedure 1: None of the tail lamps, position lamps and licence plate lamps illuminate.

CAUTION

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

MB992006

Extra fine probe

Continuity check and voltage
measurement at harness wire or
connector

Tool

Number

Name

Use

MB992006

Symptom

Inspection
procedure
number

Reference
page

Tail lamp

None of the tail lamps, position lamps and
licence plate lamps illuminate.

1

P.54A-195

One of tail lamps does not illuminate.

2

P.54A-200

Tail Lamp Relay Circuit

ETACS-ECU

·TAIL LAMP
·POSITION LAMP
·LICENCE PLATE LAMP

FUSIBLE
LINK

TAIL
LAMP
RELAY

TAIL LAMP SWITCH

INPUT SIGNAL

J/B SIDE

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 SI : Silver

3

REAR COMBINATION LAMP

CHASSIS ELECTRICAL

54A-196

COMMENTS ON TROUBLE SYMPTOM
If none of the tail lamps, position lamps and licence
plate lamps illuminate, the tail lamp switch input cir-
cuit or the ETACS-ECU may be defective. Alter-
nately, there may be the case that the adjustment
function has set the tail lamps not be illuminated
when the ignition switch is at the "LOCK" (OFF) posi-
tion.

PROBABLE CAUSES

• Malfunction of the column switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code.
When the ignition 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?

YES :

Refer to diagnosis code chart

P.54A-494

.

NO :

Go to Step 2.

STEP 2. M.U.T.-III data list
Check the input signal from the tail lamp switch.

• Turn the tail lamp switch to the ON position.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Refer to inspection procedure C-1 "The
column switch (lighting and wiper switch)
signal is not received

P.54A-523

."

STEP 3. Connector check: C-218 ETACS-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the defective connector.

STEP 4. Voltage measurement at C-218 ETACS-
ECU connector.

(1) Remove the ETACS-ECU, and measure at the

Item
No.

Item name

Normal condition

59

Tail lamp output

ON

AC509934

Connector: C-218 <LHD>

AJ

Junction

block

Junction block side

AC509943

Connector: C-218 <RHD>

AC

Junction block

(Rear view)

Junction block side

AC509934

Connector: C-218 <LHD>

AJ

Junction

block

Junction block side

AC509943

Connector: C-218 <RHD>

AC

Junction block

(Rear view)

Junction block side

REAR COMBINATION LAMP

CHASSIS ELECTRICAL

54A-197

junction box side.

(2) Voltage between C-218 ETACS-ECU connector

terminal No.16 and body earth

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Go to Step 5.

AC310507 FY

Connector C-218

(Junction block side)

REAR COMBINATION LAMP

CHASSIS ELECTRICAL

54A-198

STEP 5. Check the wiring harness between C-218
ETACS-ECU connector terminal No.16 and the
fusible link (3).