Battery terminals MITSUBISHI ENDEAVOR 2004 Service Owner's Manual

both wires, go to next step. If continuity does not exist in both wires, replace
wire harness between SRS ECU and side impact air bag module. Go to next
step.
3. Reconnect all SRS components. Activate air bag system. Using scan tool, erase
then retrieve DTCs. If DTC 72 is retrieved, go to step 1 . If DTC 72 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 73 & 74: PASSENGER SIDE IMPACT AIR BAG MODULE If DTC 73 or 74 is present, replace SRS ECU. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL & INSTALLATION.
DTC 75: PASSENGER SIDE IMPACT AIR BAG MODULE SHORT TO VOLTAGE 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
.
Disconnect passenger side impact air bag module connector D-31. See SIDE
IMPACT AIR BAG MODULE
under REMOVAL & INSTALLATION. See
Fig. 19
. Connect Load Resistor (MB991865) to Load Resistor Harness
(MB991866). Connect load resistor harness to connector D-31 by backprobing
connector. Connect negative battery cable. Using scan tool, erase then retrieve
DTCs. If DTC 75 is retrieved, go to next step. If DTC 75 is not retrieved,
replace passenger side impact air bag module. Go to step 3 .
2. Disconnect SRS ECU connector C-25 and passenger side impact air bag
module connector D-31. See SRS ELECTRONIC CONTROL UNIT (SRS
ECU)
under REMOVAL & INSTALLATION. Turn ignition on. Check for
voltage between ground and connector C-25, terminals No. 23 (Yellow/Black
wire) and No. 24 (Yellow wire). If voltage is measured at either connector,
replace wire harness between SRS ECU and passenger side impact air bag
module. Go to next step. If voltage is not measured, erase, then retrieve DTCs.
If DTC 75 is retrieved, replace SRS ECU. Go to next step.
3. Reconnect all SRS components. Activate air bag system. Using scan tool, erase
then retrieve DTCs. If DTC 75 is retrieved, go to step 1 . If DTC 75 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 76: PASSENGER SIDE IMPACT AIR BAG MODULE SHORT TO GROUND
2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. If DTC 34 is
retrieved, go to next step. If DTC 34 is not retrieved, go to step 3 .
2. Inspect ECU SRS connector C-25. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 19
. If
connector is not connected properly, connect properly. Go to step 6 . If
connector is connected properly, go to next step.
3. Disconnect negative battery cable. Disconnect SRS ECU connector C-25 and
driver side impact air bag module connector D-26. See SIDE IMPACT AIR
BAG MODULE
under REMOVAL & INSTALLATION. Reconnect both
connectors. Connect negative battery cable. Using scan tool, erase then retrieve
DTCs. If DTC 81 is retrieved, go to next step. If DTC 81 is not retrieved,
system is normal at this time.
4. Disconnect driver side impact air bag module connector D-26. Connect Load
Resistor (MB991865) to Load Resistor Harness (MB991866). Connect load
resistor harness to connector D-26 by backprobing connector. Connect
negative battery cable. Using scan tool, erase then retrieve DTCs. If DTC 81 is
retrieved, go to next step. If DTC 81 is not retrieved, replace driver side impact
air bag module. Go to step 6 .
5. Disconnect SRS ECU connector C-25 and driver side impact air bag module
connector D-26. Insert a cable tie or similar insulator between terminal No. 21
(Yellow/Green wire) and No. 22 (Yellow/Red wire) of SRS ECU connector to
release shorting bar. See Fig. 21
. Check for continuity between terminals No.
21 and 22. If continuity is found, replace wire harness between SRS ECU and
driver side impact air bag module. Go to next step. If continuity is not found,
erase then retrieve DTCs. If DTC 81 is retrieved, replace SRS ECU. Go to next
step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool, erase
then retrieve DTCs. If DTC 81 is retrieved, go to step 1 . If DTC 81 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 82: DRIVER SIDE IMPACT AIR BAG MODULE OPEN CIRCUIT 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disconnect
negative battery cable. Disconnect driver side impact air bag module connector
D-26. See SIDE IMPACT AIR BAG MODULE
under REMOVAL &

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

under REMOVAL & INSTALLATION. Turn ignition on. Check for voltage
between ground and connector C-25, terminals No. 21 (Yellow/Green wire)
and No. 22 (Yellow/Red wire). See Fig. 21
. If voltage is measured at either
terminal, replace wire harness between SRS ECU and driver side impact air
bag module. Go to next step. If voltage is not measured, erase, then retrieve
DTCs. If DTC 85 is retrieved, replace SRS ECU. Go to next step.
3. Reconnect all SRS components. Activate air bag system. Using scan tool, erase
then retrieve DTCs. If DTC 85 is retrieved, go to step 1 . If DTC 85 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 86: DRIVER SIDE IMPACT AIR BAG MODULE SHORT TO GROUND 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
.
Disconnect driver side impact air bag module connector D-26. See SIDE
IMPACT AIR BAG MODULE
under REMOVAL & INSTALLATION. See
Fig. 19
. Connect Load Resistor (MB991865) to Load Resistor Harness
(MB991866). Connect load resistor harness to connector D-26 by backprobing
connector. Connect negative battery cable. Using scan tool, erase then retrieve
DTCs. If DTC 86 is retrieved, go to next step. If DTC 86 is not retrieved,
replace driver side impact air bag module. Go to step 3 .
2. Disconnect SRS ECU connector C-25 and driver side impact air bag module
connector D-26. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)

under REMOVAL & INSTALLATION. Check for continuity between ground
and connector C-25, terminal No. 21 (Yellow/Green wire) and No. 22
(Yellow/Red wire). See Fig. 21
. If continuity is found between ground and
either wire, replace wire harness between SRS ECU and driver side impact air
bag module. Go to next step. If continuity does not exist, erase, then retrieve
DTCs. If DTC 86 is retrieved, replace SRS ECU. Go to next step.
3. Reconnect all SRS components. Activate air bag system. Using scan tool, erase
then retrieve DTCs. If DTC 86 is retrieved, go to step 1 . If DTC 86 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 89 & 96: PASSENGER SIDE IMPACT AIR BAG MODULE SENSOR COMMUNICATION
CIRCUIT 1. Before
proceedin
g, see AIR BAG SAFETY PRECAUTIONS. Disable air

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

Fig. 29: Identifying Connector D
-23 & D
-33 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC 92 & 95: SIDE IMPACT AIR BAG MODULE SENSOR FAULT If DTC 92 or 95 is retrieved by scan tool, replace SRS ECU. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION.
DTC 94: PASSENGER SIDE IMPACT AIR BAG MODULE SENSOR POWER SUPPLY CIRCUIT 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Go
to next step.
2. Disconnect driver side impact sensor connector D-33. See SIDE IMPACT
SENSOR
under REMOVAL & INSTALLATION. See Fig. 19
. Connect
negative battery cable. Turn ignition on. Measure voltage between connector
D-37, terminal No. 2 (Black/Red wire) and ground. See Fig. 29 . If voltage is 9
volts or more, replace side impact sensor. If voltage is less than 9 volts, go to
next step.
3. Check wire harness between SRS ECU connector C-25 and driver side impact
sensor connector D-33 for an open or short circuit. If an open or short circuit is
found, replace wire harness. Go to next step. If wire harness is okay, go to next
step.
4. Reconnect all SRS com
ponents. Activate air ba
g system. Usin
g scan tool, erase

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

5. Disconnect negative battery cable. Disconnect, then reconnect SRS connectors
C-26, C-307 and C-305. Connect negative battery cable. Using scan tool, erase,
then retrieve DTCs. If DTC B1400 is retrieved, go to next step. If DTC B1400
is not retrieved, intermittent condition may have existed.
6. Disconnect negative battery cable. Remove driver-side air bag module. See
DRIVER
-SIDE AIR BAG MODULE & CLOCKSPRING
under
REMOVAL & INSTALLATION. Disconnect driver-side air bag module
connector C-305. Connect Load Resistor (MB991865) to Load Resistor
Adapter (MB991866). Insert load resistor adapter leads into harness-side
terminals No. 1 (Yellow/Red wire) and No. 2 (Yellow/Blue wire) of connector
C-305. See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs.
If DTC B1400 is retrieved, go to next step. If DTC B1400 is not retrieved,
replace driver-side air bag module.
7. Disconnect negative battery cable. Disconnect lower clockspring connector C-
307. Connect load resistor and load resistor adapter to terminals No. 13
(Yellow/Black wire) and No. 14 (Yellow wire) on harness-side of connector C-
307. See Fig. 32 . Reconnect negative battery cable. Erase, then retrieve DTCs.
If DTC B1400 is not retrieved, replace clockspring. Go to step 10 . If DTC
B1400 is retrieved, go to next step.
8. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from clockspring connector C-307. Disconnect SRS ECU connector C-
26. Release SRS ECU connector shorting bar using a cable tie. Measure
resistance between SRS ECU connector terminals No. 36 (Yellow/Black wire)
and No. 37 (Yellow wire). See Fig. 33
. If continuity exits, go to next step. If
continuity does not exist, reconnect SRS components. Erase, then retrieve
DTCs. If DTC B1400 is retrieved, replace SRS ECU. Go to step 10 .
9. Replace wire harness between SRS ECU and clockspring. Go to next step.
10. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1400 is retrieved, go to step 1 . If DTC B1400 is not
retrieved, s
ystem is normal at this time.

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

Fig. 33: Identifying SRS ECU Connector C
-25, C
-26 & C
-40 Terminals
-dual
-
stage Air Bag System

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC B1401: DRIVER-SIDE AIR BAG MODULE FIRST-STAGE OPEN CIRCUIT 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to
diagnose CAN bus lines and CAN bus lines are satisfactory, go to next step. If
scan tool cannot diagnose CAN bus lines, repair CAN bus lines. Go to next
step.
2. Erase, then retrieve DTCs. Turn ignition off. If DTC B1401 is retrieved, go to
next step. If DTC B1401 is not retrieved, an intermittent condition may exist.
3. Remove driver-side air bag module. See DRIVER
-SIDE AIR BAG
MODULE & CLOCKSPRING
under REMOVAL & INSTALLATION.
Disconnect driver-side air bag module connector C-305. See Fig. 30
. Connect
Load Resistor (MB991865) to upper clockspring connector C-305 using Load
Resistor Adapter (MB991866). Insert load resistor adapter leads into terminals
No. 1 (Yellow/Red wire) and No. 2 (Yellow/Blue wire) of connector C-305.
See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs. If
DTC B1401 is retrieved, go to next step. If DTC B1401 is not retrieved,
replace driver-side air bag module. Go to step 6 .
4. Disconnect negative battery cable. Disconnect lower clockspring connector C-
307. Connect load resistor and load resistor adapter to terminals No. 13
(Yellow/Black wire
) and No. 14
(Yellow wire
) on ha
rnes
s-side of connector
C-

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

307. See Fig. 32
. Reconnect negative battery cable. Erase, then retrieve DTCs.
If DTC B1401 is not retrieved, replace clockspring. Go to step 6 . If DTC
B1401 is retrieved, go to next step.
5. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from C-307. Disconnect SRS ECU connector C-26. Release SRS ECU
connector shorting bar using a cable tie. Measure resistance of Yellow/Black
wire between SRS ECU connector terminal No. 36 and terminal No. 13 of
lower clockspring connector C307. See Fig. 33
. Measure resistance of Yellow
wire between SRS ECU connector terminal No. 37 and terminal No. 14 of
lower clockspring connector C307. If resistance is less than 2 ohms in both
wires, reconnect components. Erase, then retrieve DTCs. If DTC B1401 is
retrieved, replace SRS ECU. Go to next step. If resistance is 2 ohms or more in
either wire, replace wire harness between SRS ECU and clockspring. Go to
next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1401 is retrieved, go to step 1 . If DTC B1401 is not
retrieved, system is normal at this time.
DTC B1402: DRIVER-SIDE AIR BAG MODULE FIRST-STAGE STAGE CIRCUIT SHORT TO
VOLTAGE 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to
diagnose CAN bus lines and CAN bus lines are satisfactory, go to next step. If
scan tool cannot diagnose CAN bus lines, repair CAN bus lines. Go to next
step.
2. Erase, then retrieve DTCs. Turn ignition off. If DTC B1402 is retrieved, go to
next step. If DTC B1402 is not retrieved, an intermittent condition may exist.
3. Remove driver-side air bag module. See DRIVER
-SIDE AIR BAG
MODULE & CLOCKSPRING
under REMOVAL & INSTALLATION.
Disconnect driver-side air bag module connector C-305. See Fig. 30
. Connect
Load Resistor (MB991865) to upper clockspring connector using Load
Resistor Adapter (MB991866). Insert load resistor adapter leads into terminals
No. 1 (Yellow/Red wire) and No. 2 (Yellow/Blue wire) of connector C-305.
See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs. If
DTC B1402 is retrieved,
go to next ste
p. If DTC B1402 is not retrieved,

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

replace driver-side air bag module. Go to step 7 .
4. Disconnect negative battery cable. Disconnect lower clockspring connector C-
307. Connect load resistor and load resistor adapter to terminals No. 13
(Yellow/Black wire) and No. 14 (Yellow wire) on harness-side of connector C-
307. See Fig. 32
. Reconnect negative battery cable. Erase, then retrieve DTCs.
If DTC B1402 is not retrieved, replace clockspring. Go to step 7 . If DTC
B1402 is retrieved, go to next step.
5. Disconnect negative battery cable. Disconnect clockspring connector C-307.
Disconnect SRS ECU connector. C-26. Release SRS ECU connector shorting
bar using a cable tie. Measure voltage between ground and SRS ECU
connector C-26, terminal No. 36 (Yellow/Black wire) and No. 37 (Yellow
wire). See Fig. 33 . If voltage is measured at either terminal, go to next step. If
zero volt is measured at both terminals, reconnect components. Erase, then
retrieve DTCs. If DTC B1402 is retrieved, replace SRS ECU. Go to step 7 .
6. Replace wire harness between SRS ECU and clockspring. Go to next step.
7. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1402 is retrieved, go to step 1 . If DTC B1402 is not
retrieved, system is normal at this time.
DTC B1403: DRIVER-SIDE AIR BAG MODULE FIRST-STAGE SHORT TO GROUND 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to
diagnose CAN bus lines and CAN bus lines are satisfactory, go to next step. If
scan tool cannot diagnose CAN bus lines, repair CAN bus lines. Go to next
step.
2. Erase, then retrieve DTCs. Turn ignition off. If DTC B1403 is retrieved, go to
next step. If DTC B1403 is not retrieved, an intermittent condition may exist.
3. Remove driver-side air bag module. See DRIVER
-SIDE AIR BAG
MODULE & CLOCKSPRING
under REMOVAL & INSTALLATION.
Disconnect driver-side air bag module connector C-305. See Fig. 30
. Connect
Load Resistor (MB991865) to upper clockspring connector using Load
Resistor Adapter (MB991866). Insert load resistor adapter leads into terminals
No. 1 (Yellow/Red wire) and No. 2 (Yellow/Blue wire) of connector C-305.
See Fig. 31
. Connect ne
gative batter
y cable. Erase, then retrieve DTCs. I
f

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

DTC B1403 is retrieved, go to next step. If DTC B1403 is not retrieved,
replace driver-side air bag module. Go to step 7 .
4. Disconnect negative battery cable. Disconnect lower clockspring connector C-
307. Connect load resistor and load resistor adapter to terminals No. 13
(Yellow/Black wire) and No. 14 (Yellow wire) on harness-side of connector C-
307. See Fig. 32
. Reconnect negative battery cable. Erase, then retrieve DTCs.
If DTC B1403 is not retrieved, replace clockspring. Go to step 7 . If DTC
B1403 is retrieved, go to next step.
5. Disconnect negative battery cable. Disconnect clockspring connector C-307.
Disconnect SRS ECU connector C-26. Release SRS ECU connector shorting
bar using a cable tie. Measure resistance between ground and SRS ECU
connector C-26, terminal No. 36 (Yellow/Black wire) and terminal No. 37
(Yellow wire). See Fig. 33
. If resistance is not infinite at both terminals, go to
next step. If resistance infinite at both terminals, reconnect components. Erase,
then retrieve DTCs. If DTC B1403 is retrieved, replace SRS ECU. Go to step
7 .
6. Replace wire harness between SRS ECU and clockspring. Go to next step.
7. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1403 is retrieved, go to step 1 . If DTC B1403 is not
retrieved, system is normal at this time.
DTC B1404: DRIVER-SIDE AIR BAG MODULE FIRST-STAGE ACTIVATION CIRCUIT SHORT 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to
diagnose CAN bus lines and CAN bus lines are satisfactory, go to next step. If
scan tool cannot diagnose CAN bus lines, repair CAN bus lines. Go to next
step.
2. Erase, then retrieve DTCs. If DTC B1404 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1404 is not retrieved, an intermittent condition
may exist.
DTC B1405: DRIVER-SIDE AIR BAG MODULE FIRST-STAGE ACTIVATION CIRCUIT OPEN 1. Connect scan tool to Data Link Connector
(DLC
). SeeINITIAL SRS

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

REMOVAL & INSTALLATION. Connect negative battery cable. Turn
ignition on. Measure voltage between ground and terminal No. 1 (White/Blue
wire) of connector A-27. See Fig. 34
. If voltage is less than 9 volts, go to next
step. If voltage is 9 volts or more, replace front impact sensor. Go to step 5 .
4. Inspect Black/Red wire between SRS ECU connector C-26, terminal No. 47
and front impact sensor connector A-27, terminal No. 2 for an open or short
circuit, including connector C-15. See Fig. 33
. Inspect White/Red wire
between SRS ECU connector C-26, terminal No. 48 and front impact sensor
connector A-27, terminal No. 1 for an open or short circuit, including
connector C-15. If an open or short circuit is found in either wire, replace wire
harness between SRS ECU and front impact sensor. Go to next step. If wires
are okay, reconnect SRS components. Erase, then retrieve DTCs. If DTC
B1407 is retrieved, replace SRS ECU. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. Go to next step.
5. Reconnect SRS components. Erase, then retrieve DTCs. If DTC B1407 is
retrieved, go to step 1 . If DTC B1407 is not retrieved, system is normal at this
time.
Fig. 34: Identifying Connector A
-21 & A
-24 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC B1408: FRONT IMPACT SENSOR (RH) COMMUNICATION ERROR 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems