Mitsubishi Colt Ralliart. Manual - part 322

DIAGNOSIS TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-32

Diagnosis code No. B1707: Open circuit is detected in the flasher circuit.

CAUTION

• If diagnosis code No.B1707 are set in the 

ETACS, diagnose the CAN main bus line.

• Whenever the ECU is replaced, ensure that 

the communication circuit is normal.

TROUBLE JUDGMENT

When there is an open circuit between the turn-sig-
nal lamp relay (incorporated in the ETACS-ECU) and 
body earth, diagnosis code No. B1707 is set. How-
ever, if the system returns to normal condition, diag-
nosis code No.B1707 will be erased automatically.

COMMENTS ON TROUBLE SYMPTOM

The wiring harness wire or connectors between the 
turn-signal lamp relay and body earth may have 
loose, corroded, or damage terminals, or terminals 
pushed back in the connector, or the ETACS-ECU 
may be defective.

PROBABLE CAUSES

• Defective turn-signal lamp bulb

• Defective head lamp assembly

• Defective side turn-signal lamp

• Defective rear combination lamp

• Damaged harness wires and connectors

• Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE

Step 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54D 

− Diagnosis 

P.54D-13

). Repair the 

CAN bus line.

Step 2. Check the power supply circuit.
When the ignition switch is turned to the "LOCK" 
(OFF) position, check if the hazard warning lamps 
illuminate.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to Inspection Procedure A-2 "When 
the ignition switch is at the LOCK (OFF) 
position, the functions do not work normally. 
Check the battery power supply circuit to 
the ETACS-ECU 

P.54B-43

."

Step 3. M.U.T.-III actuator test
Perform the actuator test for the ETACS-ECU, and 
check that the turn-signal lamps work. Refer to 

P.54B-15

.

• Item 09: Turn-signal lamp (LH) switch

• Item 10: Turn-signal lamp (RH) switch

• Item 17: Turn-signal lamp (LH)

• Item 18: Turn-signal lamp (RH)

OK: The turn-signal lamps blink or illumi-
nate.

Q:  Is the check result normal?

YES : 

Go to Step 4.

NO : 

Refer to Inspection Procedure L-3 "Any of 
the turn-signal lamps does not illuminate 

P.54B-171

."

Step 4. Check that the turn-signal lamps operate.
Check that the turn-signal lamps illuminate normally. 

Q: Is the check result normal?

YES : 

Go to step 5.

NO : 

Refer to Inspection Procedure L-3 "Any of 
the turn-signal lamps does not illuminate 

P.54B-171

."

Step 5. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to the "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

not reset.

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 

P.00-13

).

NO : 

Replace the ETACS-ECU.

Main

Index

Group

TOC

DIAGNOSIS TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-33

Diagnosis code No. B1708: An open circuit is detected in the variable intermittent wiper control 
switch.

CAUTION

• If diagnosis code No.B1708 is set in the 

ETACS, diagnose the CAN main bus line.

• Whenever the ECU is replaced, ensure that 

the input and output signal circuits are nor-
mal.

TROUBLE JUDGMENT

When the output voltage of the variable intermittent 
wiper control switch is 4V or more for 1 second or 
more, ETACS-ECU judges that there is an open cir-
cuit in the variable intermittent wiper control switch, 
and sets diagnosis code No. B1708.

COMMENTS ON TROUBLE SYMPTOM

Current trouble

• The SWS communication line, the column switch 

or the ETACS-ECU may be defective.

Past trouble

• Carry out diagnosis with particular emphasis on 

connector(s) or wiring harness between the 
ETACS-ECU and the column switch. For diagno-
sis procedures, refer to "How to treat past trou-
ble" (Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

P.00-13

).

PROBABLE CAUSES

• Malfunction of the column switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to step 3.

NO : 

Repair the CAN bus line (Refer to GROUP 
54D, Troubleshooting 

P.54D-13

). On 

completion, go to Step 2.

Step 2. Retest the system.
Check that the windshield intermittent wiper interval 
can be adjusted by operating the windshield intermit-
tent wiper volume control.

OK: The intermittent wiper interval is 
changed as the intermittent wiper volume is 
rotated.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to Inspection Procedure N-6 "The 
windshield wiper volume signal is not 
received 

P.54B-208

."

Step 3. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to the "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

not reset.

Q: Is the check result normal?

YES : 

Replace the ETACS-ECU.

NO : 

The trouble can be an intermittent 
malfunction (Refer to GROUP 00 

− How to 

use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-13

).

Main

Index

Group

TOC

DIAGNOSIS TROUBLE CODE PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-34

Diagnosis code No. B1709: ETACS-ECU Internal Error (EEPROM Problem)

 

Diagnosis code No. B1710: ETACS-ECU Internal Error (ROM Problem)

 

Diagnosis code No. B1711: ETACS-ECU Internal Error (RAM Problem)

CAUTION

• If diagnosis code No.B1709, B1710 or B1711 

are set in the ETACS-ECU, diagnose the CAN 
bus lines.

• Whenever the ECU is replaced, ensure that 

the input and output signal circuits are nor-
mal.

TROUBLE JUDGMENT

If there is any trouble in the ETACS-ECU, diagnosis 
code No. B1709, B1710, B1711 will be set.

COMMENT ON TROUBLE SYMPTOM

The wiring harness wire or connectors may have 
loose, corroded, or damage terminals, or terminals 
pushed back in the connector, or the ETACS-ECU 
may be defective.

PROBABLE CAUSES

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54D 

− Diagnosis 

P.54D-13

).

Step 2. Check the power supply circuit.
When the ignition switch is turned to the "LOCK" 
(OFF) position, check if the hazard warning lamps 
illuminate.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to Inspection Procedure A-2 "When 
the ignition switch is at the LOCK (OFF) 
position, the functions do not work normally. 
Check the battery power supply circuit to 
the ETACS-ECU 

P.54B-43

."

Step 3. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to the "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

not reset.

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 

P.00-13

).

NO : 

Replace the ETACS-ECU.

Main

Index

Group

TOC

TROUBLE SYMPTOM CHART

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-35

TROUBLE SYMPTOM CHART

M1549000802282

<FUNCTION SYSTEM>

Symptom

Inspection 
procedure 
number

Reference 
page

Communication with the M.U.T.-III is not possible.

A-1

P.54B-40

When the ignition switch is at the LOCK (OFF) position, the functions do 
not work normally.

A-2

P.54B-43

Check the battery power supply circuit to the ETACS-ECU.

Symptom

Inspection 
procedure 
number

Reference 
page

Alarm Function

Lamp reminder buzzer function does not 
work normally.

B-1

P.54B-46

Door-ajar warning buzzer function does not 
work.

B-2

P.54B-48

Turn-signal lamp operation sound function 
does not work normally.

B-3

P.54B-50

Central door locking

Central door locking system does not work. C-1

P.54B-52

A door can not be locked or unlocked by 
the central door locking system.

C-2

P.54B-54

Selector "P" position-linked door unlock 
function does not operate normally. <CVT>

C-3

P.54B-61

Power window

Power windows do not work at all.

D-1

P.54B-62

Driver's power window does not work by 
means of the power window main switch.

D-2

P.54B-68

Relevant power window(s) do not work by 
means of the front and rear power window 
sub switches.

D-3

P.54B-71

Passenger's and/or rear power window(s) 
do not work by means of the power window 
main switch.

D-4

P.54B-80

The window glass lowers automatically 
while it is rising.

D-5

P.54B-83

The power window timer function does not 
work normally.

D-6

P.54B-82

Main

Index

Group

TOC