Mitsubishi Montero Sport (2004+). Manual — part 442
DOOR
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BODY
42-23
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Only the ETACS-ECU Input Signal Cannot be Checked Using the Scan
Tool (MUT-III Sub Assembly).
.
CIRCUIT OPERATION
The ETACS-ECU signal is sent to the data link con-
nector. A trouble can be diagnosed by connecting the
scan tool to the data link connector.
.
TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the data link
check circuit or of the scan tool.
.
TROUBLESHOOTING HINTS
• Malfunction of the ETACS-ECU
• Malfunction of the scan tool
• Damaged harness wires or connectors
AC309340
Data Link Connector Circuit
AC309309AG
C-69 (B)
CONNECTOR: C-69
AC004311
D-27 (B)
D-10
JUNCTION BLOCK(REAR)
CONNECTORS: D-10, D-27
AY
DOOR
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BODY
42-24
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Check the harness wire between data link
connector C-69 (terminal No.9) and ETACS-ECU connector
D-10 (terminal No.25) or D-27(terminal No.48).
(1) Remove the instrument panel side cover <LH> (Refer to
.).
(2) Check the harness wire between data link connector C-69
and ETACS-ECU connector D-10 or D-27.
Q: Is the harness wire between data link connector C-69
(terminal No.9) and ETACS-ECU connector D-10
(terminal No.25) or D-27 (terminal No.48) is damaged?
YES : Repair or replace the harness wire. then go to Step 2.
(Refer to GROUP 00E
, Harness Connector
Inspection.)
NO : Replace the ETACS-ECU. Then go to Step 2.
STEP 2. Retest the system
Q: Does the scan tool (MUT-III sub assembly) communicate
normally?
YES : The procedure is complete.
NO : Return to Step 1.
AC309309AH
CONNECTOR: C-69
C-69 (B)
AC202002
6 5 4
1
2
7
3
8
41
43
51
42
50
44
52
46 45
53
49
47
30
48
56
55
D-27 (B)
D-10
JUNCTION
BLOCK (REAR)
CONNECTORS: D-10, D-27
AB
D-27 COMPONENT SIDE
D-10 COMPONENT SIDE
21
22
23
24
25
26
27
28
DOOR
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BODY
42-25
INSPECTION PROCEDURE 2: None of the Door Lock Function Operate.
ECU Power Supply Circuit
AC003431
CONNECTOR: A-54X
A-54X
AC
AC004314
D-01
D-02 (GR)
CONNECTORS: D-01, D-02
JUNCTION BLOCK
(FRONT)
AG
DOOR
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BODY
42-26
.
CIRCUIT OPERATION
The ETACS-ECU power is supplied from fusible link
number 8.
.
TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the ETACS-ECU
power supply circuit system or of the ground circuit
system.
.
TROUBLESHOOTING HINTS
• Malfunction of the ETACS-ECU
• Damaged wiring harness or connector
AC004311
CONNECTORS: D-11, D-13
D-11
D-13
JUNCTION BLOCK (REAR)
AC
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