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Removal & Installation (Dual-stage AIR Bag System)1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Turn ignition
off. Disable air bag system. See DISABLING & ACTIVATING AIR BAG
SYSTEM
.
2. Remove center console. See FLOOR CONSOLE ASSEMBLY
. Disconnect
SRS ECU connectors. Remove SRS ECU nuts. Remove SRS ECU. See Fig.
16 .
3. To install, reverse removal procedure. Tighten SRS ECU nuts to specification.
See TORQUE SPECIFICATIONS
. Activate air bag system.
Fig. 16: Identifying SRS Electronic Control Unit (SRS ECU)
-dual
-stage Air
Bag System
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems
Page 298 of 3870
ADJUSTMENTS CENTERING CLOCKSPRING (DUAL-STAGE AIR BAG SYSTEM) Turn clockspring fully clockwise, then turn counterclockwise about 3 turns to align
mating marks. See Fig. 17
. Clockspring is now centered.
Fig. 17: Aligning Clockspring Mating Marks (Single
-sta
ge Clocks
prin
g Shown,
Dual
-stage Clockspring Is Similar)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
WIRE REPAIR DO NOT repair SRS wiring harness or connectors. If SRS wiring or harness
connectors are faulty, replace wiring harness. TORQUE SPECIFICATION
S
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TORQUE SPECIFICATIONS DIAGNOSTICS INITIAL SRS DIAGNOSTIC PROCEDURE (DUAL-STAGE AIR BAG SYSTEM) Application
Ft. Lbs. (N.m)
Front seatBack bolts
25-40 (34-54)
Bolts
25-40 (34-54)
Nuts
18-26 (24-35)
Seat belt pretensioner anchor bolts
24-40 (33-54)
Steering wheel nut
24-36 (33-49)
INCH Lbs. (N.m)
Clockspring screws
5-7 (0.56-0.79)
Driver-side air bag module bolts
62-97 (7.0-11.0
Front impact sensor nuts
44-89 (5.0-10.0)
Passenger-side air bag module bolts
(1)
Seat slide sensor bolt
35-53 (4.0-6.0)
Side impact sensor nuts
44-89 (5.0-10.0)
SRS ECUBracket nuts
44-89 (5.0-10.0)
Nuts
44-89 (5.0-10.0)
(1)
Information is not available.
WARNING:Accidental air bag deployment is possible. Personal
in
jury ma
y result. Follow air ba
g service precautions
to prevent accidental air bag deployment and
personal injury. See AIR BAG SAFETY
PRECAUTIONS
.
NOTE: AIR BAG warning light will come on if battery voltage is
low. Ensure battery is fully charged. When battery voltage
is restored to normal, AIR BAG warning light will go out.
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2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems
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1. Turn ignition on. If AIR BAG warning light comes on for 7 seconds and then
goes off, SRS is functioning properly. If AIR BAG warning light does not
function as described, turn ignition off. If AIR BAG warning light malfunction
or scan tool communication problems are encountered, diagnose malfunction
using appropriate table. SeeSCAN TOOL COMMUNICATION
SYMPTOMS (SINGLE
-STAGE AIR BAG SYSTEMS)
and SCAN TOOL
COMMUNICATION SYMPTOMS (DUAL
-STAGE AIR BAG
SYSTEMS)
tables.
2. Utilizing a laptop computer, check for Diagnostic Trouble Codes (DTCs) by
connecting Scan Tool (MB991958) to Data Link Connector (DLC), located
under left side of instrument panel, using Vehicle Communication Interface
(MB991824), USB Cable (MB991827) and Main Harness (MB991911). See
Fig. 18
. Turn ignition on and follow instructions provided with scan tool.
Diagnose displayed DTCs for appropriate air bag system. See SCAN TOOL
COMMUNICATION SYMPTOMS (SINGLE
-STAGE AIR BAG
SYSTEMS)
and SCAN TOOL COMMUNICATION SYMPTOMS
(DUAL
-STAGE AIR BAG SYSTEMS)
. When diagnosis and repairs are
com
plete, erase DTCs.
2004 Mitsubishi Endeavor Limited
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Fig. 18: Retrieving Diagnostic Trouble Codes (DTCs)
Courtesy of MITSUBISHI
2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems
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SCAN TOOL COMMUNICATION SYMPTOMS (SINGLE-STAGE AI
R
BAG SYSTEMS)
SCAN TOOL COMMUNICATION SYMPTOMS (DUAL-STAGE AIR BAG
SYSTEMS)
DIAGNOSTIC TROUBLE CODES (DTCS) IDENTIFICATION WITH
SINGLE-STAGE AIR BAG SYSTEM
Symptom
Ins
pection
Procedure
No communication with all systems
INSPECTION PROCEDURE
1
No communication with SRS only
INSPECTION PROCEDURE
2
Ignition switch on (engine stopped)AIR BAG warning light does not come on
(1)
AIR BAG warning light stays on after 7 seconds
(2)
(1)
See DTC 43: AIR BAG WARNING LIGHT DOES NOT ILLUMINATE
under .
(2)
See DTC 43: AIR BAG WARNING LIGHT STAYS ILLUMINATED
under .
Symptom
Inspection Procedure
No communication with all systems
INSPECTION PROCEDURE 1
No communication with SRS only
INSPECTION PROCEDURE 2
AIR BAG warning light does not come on
INSPECTION PROCEDURE 3
AIR BAG warning light stays on
INSPECTION PROCEDURE 4
DTC
Possible Cause
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1A
Driver-side front impact sensor short circuit
1B
Driver-side front impact sensor open circuit
1C
Driver-side front impact sensor short to voltage
1D
Driver-side front impact sensor short to ground
2A
Passenger-side front impact sensor short circuit
2B
Passenger-side front impact sensor open circuit
2C
Passenger-side front impact sensor short to voltage
2D
Passenger-side front impact sensor short to ground
11
Front impact sensor short circuit
12
Front impact sensor either circuit open/no power
13
Front impact sensor both circuits open/no power
14
Analog "G" sensor system
15
Safing "G" sensor short circuit
16
Safing "G" sensor open circuit
17
Safing "G" side impact sensor
21
Driver-side air bag module short circuit
22
Driver-side air bag module open circuit
24
Passenger-side air bag module short circuit
25
Passenger-side air bag module open circuit
26
Driver-side seat belt pretensioner short circuit
27
Driver-side seat belt pretensioner open circuit
28
Passenger-side seat belt pretensioner short circuit
29
Passenger-side seat belt pretensioner open circuit
31 & 32
SRS ECU capacitor circuit
34
SRS ECU connector lock circuit
35
SRS ECU air bag system deployment
41
SRS ECU power circuit (Fuse No. 2)
42
SRS ECU power circuit (Fuse No. 3)
43
AIR BAG warning light does not illuminate
43
AIR BAG warning light stays illuminated
44
AIR BAG warning light
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DIAGNOSTIC TROUBLE CODES (DTCS) IDENTIFICATION WITH 46
Improper SRS ECU installation
51 & 52
Driver-side air bag module
54 & 55
Passenger-side air bag module
56
Driver-side seat belt pretensioner
58
Passenger-side seat belt pretensioner
61
Driver-side air bag module short to voltage
62
Driver-side air bag module short to ground
64
Passenger-side air bag module short to voltage
65
Passenger-side air bag module short to ground
66
Driver-side seat belt pretensioner short to voltage
67
Driver-side seat belt pretensioner short to ground
68
Passenger-side seat belt pretensioner short to voltage
69
Passenger-side seat belt pretensioner short to voltage
71
Passenger side impact air bag short circuit
72
Passenger side impact air bag open circuit
73 & 74
Passenger side impact air bag module
64
Passenger-side air bag module short to voltage
75
Passenger side impact air bag short to voltage
76
Passenger side impact air bag short to ground
79 & 93
Driver side impact sensor communication circuit
81
Driver side impact air bag short circuit
82
Driver side impact air bag open circuit
83 & 84
Passenger side impact air bag module
64
Passenger-side air bag module short to voltage
85
Driver side impact air bag short to voltage
86
Driver side impact air bag short to ground
89 & 96
Passenger side impact sensor communication circuit
91
Driver side impact sensor power supply circuit
92 & 95
Side impact air bag sensor fault
94
Passenger side impact sensor power supply circuit
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