Mitsubishi Colt Ralliart. Manual - part 359

 

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Mitsubishi Colt Ralliart. Manual - part 359

 

 

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-180

INSPECTION PROCEDURE L-4: The turn-signal indicator lamp does not illuminate.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the turn-signal indicator lamp does not illuminate 
normally, connector(s), wiring harness in the CAN 
bus lines, the ETACS-ECU or the combination meter 
may be defective.

POSSIBLE CAUSES

• Malfunction of the ETACS-ECU

• Malfunction of the combination meter

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check that the hazard warning lamps 
operate.
Check that the hazard warning lamps illuminate nor-
mally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

 Refer to Inspection Procedure L-2 "The 
hazard warning lamps do not illuminate 
normally 

P.54B-169

."

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 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 4.

NO : 

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

P.54D-13

).

Step 4. M.U.T.-III other system diagnosis code.
Check whether the combination meter-related diag-
nosis code is set.

Q: Is the diagnosis code set?

YES : 

Diagnose the combination meter (Refer to 

GROUP 54A 

− Troubleshooting 

P.54A-31

).

NO : 

Go to Step 5.

INPUT SIGNAL

ETACS-ECU

COMBINATION
METER

CAN COMMUNICATION LINE
(CAN_L LINE)

CAN COMMUNICATION LINE
(CAN_H LINE)

· TURN-SIGNAL LAMP SWITCH
· HAZARD WARNING LAMP SWITCH

Turn-Signal Indicator Lamp Circuit

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-181

Step 5. M.U.T.-III actuator test
Perform the actuator test for the combination meter, 
and check that the turn-signal indicator lamps illumi-
nate (Refer to GROUP 54A 

− Combination Meter 

P.54A-62

).

Q:  Is the check result normal?

YES : 

Replace the ETACS-ECU.

NO : 

Replace the combination meter.

INSPECTION PROCEDURE L-5:  The turn-signal lamps do not illuminate when the ignition switch is at 
the ACC position.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the turn-signal lamps do not illuminate with the igni-
tion switch at ACC, the input signal circuit from the 
ignition switch (ACC) may be defective or the SWS 
monitor customisation function has set "TURN-SIG-
NAL" TO "IG-ON".

POSSIBLE CAUSES

• Malfunction of the column switch

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check that the turn-signal lamps operate.
Check that the turn-signal lamps illuminate normally 
when the ignition switch is turned to the ON position.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

 Refer to Inspection Procedure L-1 "The 
turn-signal lamps do not illuminate normally 

P.54B-166

."

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-182

Step 2. Pulse check
Check the input signals below, which are related to 
the turn-signal lamp operation sound function.

OK: The M.U.T.-III sounds or the voltmeter 
needle fluctuates.

Q: Are the check result normal?

All the signals are received normally. : 

Go to Step 

3.

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

Refer to Inspection Procedure N-2 "The 
ignition switch (IG1) signal is not received" 

P.54B-202

.

The turn-signal lamp switch (RH) signal is not 
received. : 

Refer to Inspection Procedure N-4 

"The column switch (lighting and turn-signal 
lamp switch) signal is not received" 

P.54B-206

.

The turn-signal lamp switch (LH) signal is not 
received. : 

Refer to Inspection Procedure N-4 

"The column switch (lighting and turn-signal 
lamp switch) signal is not received" 

P.54B-206

.

The hazard warning lamp switch signal is not 
received. : 

Refer to Inspection Procedure N-9 

"The hazard warning lamp switch signal is 
not received" 

P.54B-216

.

Step 3. Customize function by using the SWS 
monitor
Use the SWS monitor customisation function to con-
firm that "TURN-SIGNAL" is set to "IG-ACC."

CAUTION

The SWS monitor must be used in order to con-
firm and change that setting. Use the SWS moni-
tor to confirm and/or change the customised 
function.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Set "TURN SIGNAL" to "IG-ACC" by using 
the SWS monitor customisation function 
(Refer to GROUP 54C, Customize function 

P.54C-240

).

Step 4. Retest the system.
Check whether the turn-signal lights illuminate.

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.

System switch

Check conditions

Ignition switch (IG1)

When turned from ACC 
to ON

Turn-signal lamp switch 
(RH)

When the turn-signal 
lamp switch (RH) is 
turned from off to on

Turn-signal lamp switch 
(LH)

When the turn-signal 
lamp switch (LH) is 
turned from off to on

Hazard warning lamp 
switch

When the hazard 
warning lamp switch is 
turned from off to on

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-183

INTERIOR LAMP

INSPECTION PROCEDURE M-1: The interior lamps (room ramp, luggage compartment lamp) does not 
illuminate or extinguish normally.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The ETACS-ECU operates the interior lamps (room 
lamp, luggage compartment lamp) in accordance 
with the input signals below.

• Ignition switch (IG1)

• Key reminder switch

• All of the door switches

• Driver's door lock actuator

If this function does not work normally, these input 
signal circuit(s) or the ETACS-ECU may be defec-
tive. Alternatively, it is possible that "RM LMP TN 
OFF" was set to "W/O FUNCTION" by using the 
SWS monitor customisation function.

POSSIBLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of the door switches

• Malfunction of the driver's door lock actuator

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

· KEY CYLINDER

· ROOM LAMP 
· LUGGAGE
  COMPARTMENT
  LAMP

  ILLUMINATION
  LAMP

J/B SIDE

ETACS-ECU

POWER SOURCE

FUSIBLE
LINK

1

Interior Lamp Circuit

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

IGNITION
SWITCH (IG1)

Main

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TOC

 

 

 

 

 

 

 

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