Mitsubishi L200. Manual - part 790

ETACS

CHASSIS ELECTRICAL

54A-527

STEP 8. Check the wiring harness between C-302 
column switch connector terminal No.9 and 
ignition switch (IG1).

NOTE: 

Prior to the wiring harness inspection, check junction 
block connectors C-207, C-209 and joint connector 
C-132, and repair if necessary.

• Check the power supply line for open circuit and 

short circuit.

Q: Is the check result normal?

AC903858 AJ

Harness side

Connector: C-302 <LHD>

AC903869AJ

Harness side

Connector: C-302 <RHD>

AC903853

Connector: C-132 <LHD>

AC

C-132 (GR)

AC903865

Connector: C-132 <RHD>

AB

C-132 (GR)

AC509934 AS

Connectors: C-207, C-209 <LHD>

Harness side

C-209

C-207

Harness side

C-209

C-207

Junction block (Front view)

AC509936 AN

Connectors: C-207, C-209 <RHD>

Harness side

C-209

C-207

Harness side

C-209

C-207

Junction block (Front view)

ETACS

CHASSIS ELECTRICAL

54A-528

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 : 

Repair the wiring harness.

STEP 9. Connector check: C-219 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 10.

NO : 

Repair the defective connector.

STEP 10. Check the wiring harness between C-
302 column switch connector terminal No.3 and 
C-219 ETACS-ECU connector terminal No.54.

• Check the communication lines for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Repair the wiring harness.

STEP 11. Retest the system
(1) Replace the column switch.

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC903858 AJ

Harness side

Connector: C-302 <LHD>

AC903869AJ

Harness side

Connector: C-302 <RHD>

ETACS

CHASSIS ELECTRICAL

54A-529

(2) Check that the signals from the column switch 

are received.

Q: Is the check result normal?

YES : 

The procedure is complete.

NO : 

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

P.54A-39

).

Inspection Procedure C-2: The ignition switch (ACC) signal is not received.

CAUTION

Whenever the ECU is replaced, ensure that the input signal circuit is normal.

COMMENTS ON TROUBLE SYMPTOM
Input signal from the ignition switch (ACC) is used to 
operate the windshield wiper and washer. If the sig-
nal is abnormal, windshield wiper and washer will not 
work normally.

PROBABLE CAUSES

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

Ignition Switch (ACC) Input Circuit

IGNITION
SWITCH (ACC)

ETACS-ECU

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

ETACS

CHASSIS ELECTRICAL

54A-530

DIAGNOSIS PROCEDURE

STEP 1. Connector check: C-219 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the defective connector.

STEP 2. Voltage measurement at the C-219 
ETACS-ECU connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Turn the ignition switch to the "ACC" position.

(3) Voltage between C-219 ETACS-ECU connector 

terminal No.74 and body earth

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 3.

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC509934

Connector: C-219 <LHD>

AD

C-219 (GR)

Harness side

Junction block

AC509943

Connector: C-219 <RHD>

AB

C-219 (GR)

Harness side

Junction block
 (Rear view)

AC310507

(Harness side)

Connector: C-219

JH