Mitsubishi Lancer (4A9 engine). Manual - part 148

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-254

Rear View Camera Circuit

ETACS-ECU

BACK-UP 
LAMP 
SWITCH

<M/T>

<A/T, CVT>

INHIBITOR 
SWITCH

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

IGNITION 
SWITCH (IG1)

IG1 
RELAY

FUSIBLE 
LINK

44

34

1800-DIESEL

:

1600

:

1800-PETROL-DOHC, 2000

:

NOTE

1800-PETROL-SOHC

:

MULTIVISION 
DISPLAY

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-255

Rear View Camera Circuit

MULTIVISION DISPLAY

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

LANCER SPORTBACK

:

LANCER

:

NOTE

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-256

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>

ACB02646

AJ

C-143 (GR)

C-152 (GR)

Connectors: C-143, C-152 <LHD>

ACB02648

AK

C-152 (GR)

Connectors: C-143, C-152 <RHD>

C-143 (GR)

ACA00886

BL

ETACS-ECU

C-311

C-304

C-313 (BR)

Connectors: C-304, C-311, C-313 <LHD>

ACA00887

BX

ETACS-ECU

Connectors: C-304, C-311, C-313 <RHD>

C-304

C-313 (BR)

C-311

ACB02748 AB

Connector: F-51 <LANCER>

ACB02749 AB

Connector: F-51 <LANCER SPORTBACK>

REAR VIEW CAMERA

CHASSIS ELECTRICAL

54A-257

COMMENTS ON TROUBLE SYMPTOM
When the screen of rear view camera is not shown 
even if the shift lever <M/T> or selector lever <CVT, 
A/T> is "R" (Reverse) position, the rear view camera, 
the wiring harness, connectors, back-up lamp switch 
or multivision display may be defective. 

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 multivision display

DIAGNOSIS PROCEDURE

STEP 1. 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 2.

STEP 2. 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 3.

NO : 

Refer to ETACS 

− Inspection Procedure 2 

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

STEP 3. 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 10.

NO : 

Go to step 4.

STEP 4. 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 5.

NO : 

Repair the defective connector.

STEP 5. Check the wiring harness between C-313 
ETACS-ECU connector terminal No. 4 and B-08 
back-up lamp switch connector terminal No. 2 
<M/T> or B-121 inhibitor switch connector 
terminal No. 3 <CVT, A/T>.

• 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 6.

NO : 

Repair the wiring harness.

STEP 6. Connector check: C-304 ETACS-ECU 
connector .

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector.

STEP 7. Check the wiring harness between C-304 
ETACS-ECU connector terminal No. 2 and B-110 
back-up lamp switch <M/T> connector terminal 
No. 1 or B-109 inhibitor switch <CVT, A/T> 
connector terminal No. 9 <4J1, 4B1> or 7 <4A9>.

• Check the communication lines for open circuit 

and short circuit.

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

Q: Is the check result normal?

YES <CVT, A/T> : 

Go to Step 8.

YES <M/T> : 

Go to Step 9.

NO  : 

Repair the wiring harness.

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