Mitsubishi Lancer (4A9 engine). Manual - part 150

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-262

REAR VIEW CAMERA

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

Rear View Camera Circuit

INSIDE 
REAR 
VIEW 
MIRROR 
ASSEMBLY

CPU

LANCER SPORTBACK

:

LANCER

:

NOTE

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-263

COMMENTS ON TROUBLE SYMPTOM
When the screen of rear view camera is not shown 
even if the selector lever <CVT, A/T> or shift lever 
<M/T> is "R" (Reverse) position, the rear view cam-
era, the inside rear view mirror assembly, the wiring 
harness, connectors, back-up lamp switch <M/T> or 
inhibitor switch <CVT, A/T> may be defective.
NOTE: If the indicator on the inside rear view mirror 
assembly is illuminated in orange but the monitor is 
not displayed, this is not a malfunction as the monitor 
has been set to always stay OFF.

PROBABLE CAUSES

• Damaged harness wires and connectors

• Malfunction of the back-up lamp switch <M/T>

• Malfunction of the inhibitor switch <CVT, A/T>

• Malfunction of the rear view camera

• Malfunction of the inside rear view mirror assem-

bly

AC809223

AB

Connector: B-110 <1800-DIESEL>

B-110 (B)

ACB02649

AB

Connectors: B-109, B-110 
<1600>

B-109 (B)

B-110 (B)

ACB02651

AB

Connectors: B-109, B-110 
<1800-petrol-SOHC>

B-109 (B)

B-110 (B)

ACB02653

AB

B-109 (B)

B-110 (B)

Connectors: B-109, B-110 
<1800-petrol-DOHC, 2000>

ACA00886

BM

ETACS-ECU

C-311

C-304

C-313 (BR)

Connectors: C-304, C-311, C-313, 
C-315 <LHD>

C-315

ACA00887

BY

ETACS-ECU

C-311

C-304

C-313 (BR)

Connectors: C-304, C-311, C-313, 
C-315 <RHD>

C-315

ACB02748 AB

Connector: F-51 <LANCER>

ACB02749 AB

Connector: F-51 <LANCER SPORTBACK>

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-264

DIAGNOSIS PROCEDURE

STEP 1. Check the inside rear view mirror 
assembly.
Check the illumination condition of the indicator.
(1) Turn the ignition switch to the "ON" position.
(2) Move the selector lever <CVT, A/T> or shift lever 

<M/T> to the "R" (Reverse) position.

(3) Check that the indicator of the inside rear view 

mirror assembly illuminates.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Go to Step 4.

STEP 2. Check the inside rear view mirror 
assembly.
Check the illumination condition of the indicator.
(1) Turn the ignition switch to the "ON" position.
(2) Move the selector lever <CVT, A/T> or shift lever 

<M/T> to the "R" (Reverse) position.

(3) Check that the indicator of the inside rear view 

mirror assembly illuminates in green.

Q: Is the check result normal?

YES : 

Go to Step 22.

NO : 

Go to Step 3.

STEP 3. Check the inside rear view mirror 
assembly.
Check that the rear view screen is displayed on the 
monitor of the inside rear view mirror assembly.
(1) Turn the ignition switch to the "ON" position.
(2) Move the selector lever <CVT, A/T> or shift lever 

<M/T> to the "R" (Reverse) position.

(3) Press the switch of the inside rear view mirror 

assembly and check that the rear view screen is 
displayed.
NOTE: The illumination colour of the indicator of 
the inside rear view mirror assembly changes 
from orange to green.

Q: Is the check result normal?

YES : 

Go to Step 22.

NO : 

Go to Step 4.

STEP 4. M.U.T.-III other system diagnosis code
Check again if the diagnosis code is set to the 
ETACS-ECU.

Q: Is the diagnosis code set?

YES : 

Diagnose the ETACS-ECU (Refer to 

GROUP 54A 

− ETACS-ECU − 

Troubleshooting ).

NO : 

Go to Step 5.

STEP 5. M.U.T.-III other system data list
Check the input signal of ACC relay.

• Turn the ignition switch to the "ACC" position.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Refer to ETACS 

− Input Signal Procedure 1 

"The ignition switch (ACC) signal is not sent 
to the ETACS-ECU" .

STEP 6. M.U.T.-III data list
Check if ETACS-ECU related signal is set.

• Turn the ignition switch to the "ON" position.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Refer to ETACS 

− Inspection Procedure 2 

"The ignition switch (IG1) signal is not 
received" .

STEP 7. M.U.T.-III data list
Check if ETACS-ECU related signal is set.

• Turn the ignition switch to the "ON" position.

• selector lever <CVT, A/T> or shift lever <M/T> is 

"R" (Reverse) position

OK: Normal condition is displayed.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Go to Step 14.

STEP 8. Connector check: D-46 inside rear view 
mirror assembly connector.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the defective connector.

Item No.

Item name

Normal 
condition

Item 288

ACC switch

ON

Item No.

Item name

Normal 
condition

254

IG voltage

System voltage

Item No.

Item name

Normal 
condition

289

Backup lamp or 
shift reveres 
SW

ON

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-265

STEP 9. Voltage measurement at D-46 inside rear 
view mirror assembly connector.
(1) Disconnect the connector, and measure at the 

wiring harness-side connector.

(2) Turn the ignition switch to the "ACC" position.
(3) Voltage between D-46 inside rear view mirror 

assembly connector terminal No. 1 and the body 
earth

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Go to Step 10.

STEP 10. Check the wiring harness between D-46 
inside rear view mirror assembly connector 
terminal No. 1 and C-315 ETACS-ECU connector 
terminal No. 9

• Check the power supply lines (battery power sup-

ply) for open circuit and short circuit.

NOTE: Before the wiring harness inspection, inspect 
the C-130 intermediate connector, and repair if nec-
essary.

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 : 

Repair the wiring harness.

STEP 11. Resistance measurement at D-46 inside 
rear view mirror assembly connector.
(1) Disconnect D-46 inside rear view mirror 

assembly connector, and measure the resistance 
available at the wiring harness side of the 
connector.

(2) Check the continuity between terminal No. 4 and 

body earth.

OK: Continuity exists (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Go to Step 12.

STEP 12. Check the wiring harness between D-46 
inside rear view mirror assembly connector 
terminal No. 4 and body earth.

• Check the earth wires for open circuit.

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 : 

Repair the wiring harness. 

STEP 13. Voltage measurement at D-46 inside 
rear view mirror assembly connector.
(1) Disconnect the connector, and measure at the 

wiring harness-side connector.

(2) Turn the ignition switch to the "ON" position.
(3) Move the selector lever <CVT, A/T> or shift lever 

<M/T> to the "R" (Reverse) position.

(4) Voltage between D-46 inside rear view mirror 

assembly connector terminal No. 2 and the body 
earth

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 22.

NO : 

Go to Step 20.

STEP 14. Connector check: C-313 ETACS-ECU 
connector and B-110 back-up lamp switch 
connector <M/T> or B-109 inhibitor switch 
connector <CVT, A/T>.

Q: Is the check result normal?

YES : 

Go to Step 15.

NO : 

Repair the defective connector.

STEP 15. Check the wiring harness between C-
313 ETACS-ECU connector terminal No. 4 and B-
110 back-up lamp switch <M/T> connector 
terminal No. 2 or B-109 inhibitor switch <CVT, A/
T> connector terminal No. 3 <4J1, 4B1> or 8 
<4A9>.

• Check the communication lines for open circuit 

and short circuit.

NOTE: Before the wiring harness inspection, inspect 
the A-11 <4A9, 4J1, 4B1>, A-60 <4N1> and C-31 
intermediate connectors, and repair if necessary.

Q: Is the check result normal?

YES : 

Go to Step 16.

NO : 

Repair the wiring harness.

STEP 16. Connector check: C-304 ETACS-ECU 
connector .

Q: Is the check result normal?

YES : 

Go to Step 17.

NO : 

Repair the defective connector.