Mitsubishi Evolution X. Manual — part 842

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-51

STEP 6. Resistance measurement at the D-02 lighting
control sensor connector
(1) Disconnect the connector, and measure the resistance at

the wiring harness.

(2) Measure the resistance between D-02 lighting control

sensor connector terminal No.2 and body ground.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES : Go to Step 8.
NO : Go to Step 7.

STEP 7. Check the wiring harness between D-02 lighting
control sensor connector terminal No.2 and body ground.

• Check the ground wires for open circuit.

Q: Is the check result normal?

YES : Intermittent malfunction (Refer to GROUP 00

− How

to Use Troubleshooting/Inspection Service Points -
How to Cope with Intermittent Malfunction

P.00-15

.)

NO : Repair the wiring harness.

STEP 8. Voltage measurement at the D-02 lighting control
sensor connector
(1) Disconnect the connector, and measure the voltage at the

wiring harness side.

(2) Measure the voltage between D-02 lighting control sensor

connector terminal No.1 and body ground.

OK: Battery voltage

Q: Is the check result normal?

YES : Go to Step 10.
NO : Go to Step 9.

AC608255

2

3

4

1

BU

Harness side: D-02

AC608254 CT

Harness side: D-02

2

3

4

1

WINDSHIELD WIPER AND WASHER

TSB Revision

EXTERIOR

51-52

STEP 9. Check the wiring harness between D-02 lighting
control sensor connector terminal No.1 and fusible link
(36).
NOTE: Prior to the wiring harness inspection, check intermedi-
ate connector C-133, ETACS-ECU connectors C-307 and
C-317, and repair if necessary.

• Check the power supply line for open circuit.

Q: Is the check result normal?

YES : Intermittent malfunction (Refer to GROUP 00

− How to

Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunction

P.00-15

.)

NO : Repair the wiring harness.

STEP 10. Connector check: C-316 ETACS-ECU connector
Q: Is the check result normal?

YES : Go to Step 11.
NO : Repair the damaged connector.

STEP 11. Measure the voltage at the C-316 ETACS-ECU
connector.
(1) Disconnect the connector, and measure the voltage at the

wiring harness side.

(2) Measure the voltage between C-316 ETACS-ECU

connector terminal No. 1 and body ground.

OK: Battery voltage

Q: Is the check result normal?

YES : Replace the Lighting control sensor.
NO : Go to Step 12.

STEP 12. Check the wiring harness between C-316
ETACS-ECU connector terminal No.1 and D-02 lighting
control sensor connector terminal No.3.

• Check the input and output lines for open or short circuit.

Q: Is the check result normal?

YES : Intermittent malfunction (Refer to GROUP 00

− How

to Use Troubleshooting/Inspection Service Points -
How to Cope with Intermittent Malfunction

P.00-15

.)

NO : Repair the wiring harness.

AC608254

6

2

3

1

5 4

Harness side: C-316

CU

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-53

INSPECTION PROCEDURE 8: The rain sensitive AUTO wiper function works even though there is no
rainfall <Vehicles with lighting control sensor>.

CAUTION

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

AC708845

30

30A

8

7.5A

8

LIGHTING
CONTROL
SENSOR

LIN DRIVE
CIRCUIT

ETACS-ECU

AB

INTERFACE
CIRCUIT

Raindrops Sensing Wiper Function Control Circuit

36

FUSIBLE LINK

AC708972AI

Connector: C-316

Junction block

AC708954 AI

Connector: D-02

WINDSHIELD WIPER AND WASHER

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EXTERIOR

51-54

.

TECHNICAL DESCRIPTION (COMMENT)

The lighting control sensor, the harness connector, or the
ETACS-ECU may be defective.

.

TROUBLESHOOTING HINTS

• Malfunction of the lighting control sensor

• Malfunction of ETACS-ECU

• Damaged wiring harness and connectors

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Lighting control sensor installation surface check
Visually check the presence of scratches or air bubbles (diame-
ter of 5 mm or more) on the windshield to which the lighting
control sensor is installed.
Q: Is the check result normal?

YES : Go to Step 2.
NO : Replace the windshield (Refer to GROUP 42A

−

Windshield Removal and Installation

P.42A-19

).

STEP 2. Windshield wiper operation check
Check that the windshield wipers work normally.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Refer to Inspection procedure 3

P.51-35

.