Mitsubishi Colt Ralliart. Manual — part 404

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-124

Step 5. Check the door mirror assemblies.
Check whether the door mirror assemblies work nor-
mally (Refer to GROUP 51

− Door Mirror

P.51-43

).

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Replace the door mirror assemblies.

Step 6. Connector check: B-134 ETACS-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the connector.

Step 7. Voltage measurement at the B-134
ETACS-ECU connector

(1) Remove the ETACS-ECU, and measure at the

junction block side.

(2) Check the voltage between the B-134

ETACS-ECU connector terminal No.1 and body
earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 9.

NO :

Go to Step 8.

AC313872 AH

Connector: B-134

Harness side

Junction block (Rear view)

AC313872 AH

Connector: B-134

Harness side

Junction block (Rear view)

AC313972

Connector B-134
(Harness side)

AR

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-125

Step 8. Check the wiring harness between B-134
ETACS-ECU connector terminal No.20 to the
fusible link (1)

NOTE:

Prior to the wiring harness inspection, check junction
block connector B-108, and repair if necessary.

• Check the power supply line to the battery 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

P.00-13

).

NO :

Repair the wiring harness.

Step 9. Retest the system
Check that the electric retractable remote controlled
mirror works normally.

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.

AC313872 AH

Connector: B-134

Harness side

Junction block (Rear view)

AC313870

Connector: B-108

BD

Junction block (Front view)

B-108(B)

Harness side

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-126

INSPECTION PROCEDURE H-2: Electric retractable remote controlled door mirror timer function does
not at all.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the door mirror can be folded and unfolded with the
remote controlled mirror switch (fold/unfold switch),
the ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the ETACS-ECU

DIAGNOSTIC PROCEDURE

Step 1. Check the electric retractable door
mirrors operation.
Check that the door mirror is folded and unfolded
with the remote controlled mirror switch when the
ignition switch is at ACC position.

• Ignition switch: ACC

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to inspection procedure H-1 "Electric
retractable remote controlled door mirror
does not work at all

P.54C-122

."

Step 2. ECU check on the SWS monitor
Check that the power supply and earth lines to the
ETACS-ECU and the SWS communication lines are
normal.

• Ignition switch: OFF

ECU TO BE CHECKED

• ETACS ECU

OK: "OK" is displayed on the "ETACS ECU"
menu.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Refer to Inspection Procedure A-3
"Communication with ETACS-ECU is not
possible

P.54C-41

."

Step 3. SWS monitor data list.
Check the SWS communication signal, which are
related to the electric retractable door mirror timer
function.

<Selected item> ETACS ECU

• Ignition switch: IG1

OK: Normal condition is displayed.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

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

P.54C-203

."

Step 4. Retest the system.
Check that the electric retractable door mirror timer
function works normally.

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.

Item No.

Item name

Normal
condition

Item 30

IG SW IG1

ON

Main

Index

Group

TOC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-127

INSPECTION PROCEDURE H-3: Vehicle speed-dependent unfolding function does not work normally.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If this function does not work normally, the input sig-
nal circuit(s) below or the ETACS-ECU may be
defective.

POSSIBLE CAUSES

• Defective vehicle speed signal

(engine-CVT-ECU)

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

Q: Is the check result normal?

YES :

Diagnose the combination meter (Refer to

GROUP 54A

− Troubleshooting

P.54A-31

).

NO :

Go to Step 3.

Step 3. Retest the system.
Check that the vehicle speed-dependent unfolding
function of the door mirrors works normally.

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.

INSPECTION PROCEDURE H-4: Keyless entry system-linked fold/unfold function does not work
normally.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If this function does not work normally, keyless entry
transmitter input signal circuit or the ETACS-ECU
may be defective.

POSSIBLE CAUSES

• Defective keyless entry transmitter

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the keyless entry operation.
Check that the keyless entry system works normally.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to inspection procedure E-1 "Keyless
entry system does not work

P.54C-84

."

Step 2. Retest the system.
Check that the keyless entry interlock fold/unfold
function for the door mirrors works normally.

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