Mitsubishi Evolution X. Manual - part 961

REAR COMBINATION LIGHT

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CHASSIS ELECTRICAL

54A-205

STEP 2. Check headlight assembly (LH) connector A-40, 
rear combination light (LH) connector F-25, taillight (LH) 
connector F-24, license plate light connector F-18 (LH) and 
F-15 (RH) for loose, corroded or damaged terminals, or 
terminals pushed back in the connector.
Q: Is headlight assembly (LH) connector A-40, rear 

combination light (LH) connector F-25, taillight (LH) 
connector F-24, license plate light connector F-18 (LH) 
and F-15 (RH) in good condition?
YES : Go to Step 3.
NO  :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 3. Resistance measurement at headlight assembly 
(LH) connector A-40, rear combination light (LH) connector 
F-25, taillight (LH) connector F-24, license plate light 
connector F-18 (LH) and F-15 (RH).
(1) Disconnect the connector, and measure at the wiring 

harness side.

(2) Measure the resistance between the connector of light 

which does not illuminate and the body ground.

•

Measure the resistance between headlight assembly 
(LH) connector A-40 (terminal 6) and the body ground.

•

Measure the resistance between rear combination light 
(LH) connector F-25 (terminal 1) and the body ground.

AC709322 AD

Harness side: A-40

AC709322 AF

Harness side: F-25

REAR COMBINATION LIGHT

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CHASSIS ELECTRICAL

54A-206

•

Measure the resistance between taillight (LH) connector 
F-24 (terminal 1) and the body ground.

•

Measure the resistance between license plate light (LH) 
connector F-18 (terminal 1) and the body ground.

•

Measure the resistance between license plate light (RH) 
connector F-15 (terminal 1) and the body ground.

OK: The measured value should be continuity 
exists (2 

Ω or less).

Q: Does the measured resistance value correspond with 

this range?
YES : Go to Step 5.
NO :  Go to Step 4.

AC709322 AQ

Harness side: F-24

AC709322 AR

Harness side: F-18

AC709322 AS

Harness side: F-15

REAR COMBINATION LIGHT

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CHASSIS ELECTRICAL

54A-207

STEP 4. Check the wiring harness between headlight 
assembly connector, rear combination light connector, tail 
light connector or license plate light and the body ground.
Check the ground line for open circuit.

• Check the wiring harness between headlight assembly (LH) 

connector A-40 (terminal 6) and the body ground.

• Check the wiring harness between rear combination light 

(LH) connector F-25 (terminal 1) and the body ground.

• Check the wiring harness between taillight (LH) connector 

F-24 (terminal 1) and the body ground.
NOTE: Also check intermediate connector F-27 for loose, 
corroded, or damaged terminals, or terminals pushed back 
in the connector. If intermediate connector F-27 is dam-
aged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

• Check the wiring harness between license plate light (LH) 

connector F-18 (terminal 1) and the body ground.

• Check the wiring harness between license plate light (RH) 

connector F-15 (terminal 1) and the body ground.

Q: Is the wiring harness between headlight assembly 

connector, rear combination light connector, tail light 
connector or license plate light and the body ground in 
good condition?
YES : Go to Step 7.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary.

STEP 5. Check ETACS-ECU connectors C-304 <position 
light> and C-311 <taillight or license plate light> for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is ETACS-ECU connectors C-304 <position light> and 

C-311 <taillight or license plate light> in good 
condition?
YES : Go to Step 6.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

.

REAR COMBINATION LIGHT

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CHASSIS ELECTRICAL

54A-208

STEP 6. Check wiring harness between headlight 
assembly connector, rear combination light connector, 
taillight connector or license plate light and ETACS-ECU 
connector.
Check the power supply line for open circuit or short circuit.

• Check the wiring harness between headlight assembly (LH) 

connector A-40 (terminal 4) and ETACS-ECU connector 
C-304 (terminal 3).

• Check the wiring harness between rear combination light 

(LH) connector F-25 (terminal 3) and ETACS-ECU connec-
tor C-311 (terminal 10).
NOTE: Also check intermediate connectors D-17 for loose, 
corroded, or damaged terminals, or terminals pushed back 
in the connector. If intermediate connector D-17 is dam-
aged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

• Check the wiring harness between taillight (LH) connector 

F-24 (terminal 2) and ETACS-ECU connector C-311 (termi-
nal 10).
NOTE: Also check intermediate connectors D-17 and F-27 
for loose, corroded, or damaged terminals, or terminals 
pushed back in the connector. If intermediate connector 
D-17 or F-27 is damaged, repair or replace the connector 
as described in GROUP 00E, Harness Connector Inspec-
tion 

P.00E-2

.

• Check the wiring harness between license plate light (LH) 

connector F-18 (terminal 2) and ETACS-ECU connector 
C-311 (terminal 10).
NOTE: Also check intermediate connectors D-17 for loose, 
corroded, or damaged terminals, or terminals pushed back 
in the connector. If intermediate connector D-17 is dam-
aged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

• Check the wiring harness between license plate light (RH) 

connector F-15 (terminal 2) and ETACS-ECU connector 
C-311 (terminal 10).
NOTE: Also check intermediate connectors D-17 for loose, 
corroded, or damaged terminals, or terminals pushed back 
in the connector. If intermediate connector D-17 is dam-
aged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between headlight assembly 

connector, rear combination light connector, taillight 
connector or license plate light and ETACS-ECU 
connector in good condition?
YES : Go to Step 7.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary.