Mitsubishi Outlander XL. Manual - part 1045

terminals pushed back in the connector. Repair the wiring
harness as necessary.

STEP 4. Check ETACS-ECU connectors C-307 and C-309 for
loose, corroded or damaged terminals, or terminals pushed
back in the connector.

Q:Is  ETACS-ECU  connectors  C-307  and  C-309  in  good

condition?

YES:

 Go to Step 5.

NO:

 Repair or replace the damaged component(s). Refer to

GROUP 00E, Harness Connector Inspection P.00E-2.

STEP 5. Check the battery power supply circuit to the
ETACS-ECU. Measure the voltage at ETACS-ECU
connectors C-307 and C-309.

(1)

Disconnect  ETACS-ECU  connectors  C-307  and  C-309
measure the voltage available at the wiring harness side of
the connector.

ZC6022230002

Connector C-307  
(Harness side)

(2)

Measure the voltage between ETACS-ECU connector C-307
terminal 2 and ground.

｠

The  voltage  should  measure  approximately  12  volts
(battery positive voltage).

ZC6022230003

Connector C-309  
(Harness side)

(3)

Measure the voltage between ETACS-ECU connector C-309
terminal 1 and ground.

｠

The  voltage  should  measure  approximately  12  volts
(battery positive voltage).

Q:Is the measured voltage approximately 12 volts (battery

positive voltage)?

YES:

 Go to Step 7.

NO:

 Go to Step 6.

STEP 6. Check the wiring harness between ETACS-ECU
connector C-306 (terminal 1 or 2) and the fusible link (34) or
(36).

Q:Is  the  wiring  harness  between  ETACS-ECU  connector

C-306 (terminal 1 or 2) and the fusible link (34) or (36) in

good condition?

YES:

 No action is necessary and testing is complete.

NO:

 The wiring harness may be damaged or the connector

(s) may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the wiring
harness as necessary. The system should communicate with
the ETACS-ECU normally.

ETACS

54Ad-59

DIAGNOSIS

STEP 7. Retest the system
Check that the ETACS-ECU functions work normally.

Q:Is the check result satisfactory?

YES:

 The procedure is complete. (If no malfunctions are

found in all steps, an intermittent malfunction is
suspected. Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points - How to Cope with Intermittent
Malfunction P.00-15).

NO:

 Replace the ETACS-ECU.

TROUBLE SYMPTOM CHART FOR INPUT SIGNAL

M15410600026USA0000010000

Trouble symptom

Inspection
Procedure No.

Reference
page

ETACS-ECU does not receive any signal from the ignition switch (ACC). 1

 P.54Ad-61

ETACS-ECU does not receive any signal from the ignition switch (IG1). 2

 P.54Ad-62

ETACS-ECU does not receive any signal from the key reminder switch. 3

 P.54Ad-64

ETACS-ECU  does  not  receive  any  signal  from  the  front  door  lock
actuator.

4

 P.54Ad-67

ETACS-ECU does not receive any signal from the front door switch (LH). 5

 P.54Ad-73

ETACS-ECU does not receive any signal from the front door switch (RH). 6

 P.54Ad-75

ETACS-ECU does not receive any signal from the rear door switch (LH). 7

 P.54Ad-77

ETACS-ECU does not receive any signal from the rear door switch (RH). 8

 P.54Ad-80

ETACS-ECU does not receive any signal from the liftgate switch.

9

 P.54Ad-82

ETACS-ECU does not receive any signal from the hood switch.

10

 P.54Ad-85

ETACS-ECU does not receive any signal from the hazard warning light
switch.

11

 P.54Ad-87

ETACS-ECU does not receive any signal from the column switch signal. 12

 P.54Ad-89

54Ad-60

ETACS

DIAGNOSIS

INPUT SIGNAL PROCEDURES

Inspection Procedure 1: ETACS-ECU does not receive any signal from the ignition
switch (ACC).

M15410600028USA0000010000

Ignition Switch (ACC) Input Circuit

ETACS-ECU

IGNITION
SWITCH (ACC)

ZC6008780006

Connector: C-317

TECHNICAL DESCRIPTION (COMMENT)
If there is an error to the ignition switch (ACC) input
signal, or the ACC relay inside the ETACS-ECU does

not  operate,  the  ignition  switch  (ACC)  signal  is  no
longer output to the communication line.

TROUBLESHOOTING HINTS

｠

The ETACS-ECU may be defective

｠

The ignition switch may be defective

｠

The wiring harness or connectors may have loose,
corroded,  or  damaged  terminals,  or  terminals
pushed back in the connector

DIAGNOSIS

Required Special Tools:

｠

MB991223: Harness Set

｠

MB992006: Extra Fine Probe

STEP 1. Check ETACS-ECU connector C-317 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is ETACS-ECU connector C-317 in good condition?

YES:

 Go to Step 2.

ETACS

54Ad-61

DIAGNOSIS

NO:

 Repair or replace the damaged component(s). Refer to

GROUP 00E, Harness Connector Inspection P.00E-2. Check
that the input signal of ignition switch (ACC) is normal.

STEP 2. Check the ignition switch (ACC) line of the power
supply circuit to the ETACS-ECU. Measure the voltage at
ETACS-ECU connector C-317.

(1)

Disconnect ETACS-ECU connector C-317 and measure the
voltage available at the junction block side of the connector.

(2)

Turn the ignition switch to the "ACC" position.

ZC6022230004

Connector C-317  
(Harness side)

(3)

Measure the voltage between terminal 7 and ground.

｠

The  voltage  should  measure  approximately  12  volts
(battery positive voltage).

Q:Is the measured voltage approximately 12 volts (battery

positive voltage)?

YES:

 Replace the ETACS-ECU. Check that the input signal

of ignition switch (ACC) is normal.

NO:

 Go to Step 3.

STEP 3. Check the wiring harness between ETACS-ECU
connector C-317 (terminal 7) and the ignition switch (ACC).

Q:Is  the  wiring  harness  between  ETACS-ECU  connector

C-317  (terminal  7)  and  ignition  switch  (ACC)  in  good

condition?

YES:

 No action is necessary and testing is complete.

NO:

 The wiring harness may be damaged or the connector

(s) may have loose, corroded or damaged terminals, or
terminals pushed back in the connector. Repair the wiring
harness as necessary. Check that the input signal of
ignition switch (ACC) is normal.

Inspection Procedure 2: ETACS-ECU does not receive any signal from the ignition
switch (IG1).

M15410600029USA0000010000

Ignition Switch (IG1) Input Circuit

ETACS-ECU

IGNITION
SWITCH (IG1)

54Ad-62

ETACS

DIAGNOSIS