2004 MITSUBISHI ENDEAVOR module

REMOVAL & INSTALLATION. Disconnect driver-side air bag module
connector C-305. Connect Load Resistor (MB991865) to upper clockspring
connector using Load Resistor Adapter (MB991866). Insert load resistor
adapter leads into terminals No. 3 (Yellow/Green wire) and No. 4
(Yellow/Black wire) of connector C-305. Connect negative battery cable.
Erase, then retrieve DTCs. If DTC B1480 is retrieved, go to next step. If DTC
B1480 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. 11
(Yellow/Blue wire) and No. 12 (Yellow/Violet wire) on harness-side of
connector C-307. See Fig. 32
. Reconnect negative battery cable. Erase, then
retrieve DTCs. If DTC B1480 is retrieved, replace clockspring. Go to step 10 .
If DTC B1480 is not retrieved, go to next step.
8. Disconnect negative battery cable. Disconnect clockspring connector C-301.
Disconnect SRS ECU connector. Release SRS ECU shorting bar using a cable
tie. Measure resistance between SRS ECU connector terminals No. 33
(Yellow/Blue wire) and No. 34 (Yellow/Violet 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 B1480 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 B1480 is retrieved, go to step 1 . If DTC B1480 is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC B1481: DRIVER-SIDE AIR BAG MODULE SECOND-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 B1481 is retrieved, go to
next step. If DTC B1481 is not retrieved, an intermittent condition may exist.
3. Remove drive
r-side air ba
g module. See DRIVER
-SIDE AIR BAG

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

MODULE & CLOCKSPRIN
G 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. 3 (Yellow/Green wire) and No. 4 (Yellow/Black wire) of connector C-305.
See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs. If
DTC B1481 is retrieved, go to next step. If DTC B1481 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. 11
(Yellow/Blue wire) and No. 12 (Yellow/Violet wire) on harness-side of
connector C-307. See Fig. 32
. Reconnect negative battery cable. Erase, then
retrieve DTCs. If DTC B1481 is retrieved, replace clockspring. Go to step 6 . I
f
DTC B1481 is not retrieved, go to next step.
5. Disconnect negative battery cable. Disconnect clockspring connector C-307.
Disconnect SRS ECU connector C-26. Release SRS ECU shorting bar using a
cable tie. Measure resistance of Yellow/Blue wire between SRS ECU
connector terminals No. 33 and terminal No. 11 of lower clockspring connector
C307. See Fig. 33
. Measure resistance of Yellow/Violet wire between SRS
ECU connector terminal No. 34 and terminal No. 12 of lower clockspring
connector C307. If resistance is less than 2 ohms in both wires, reconnect
components. Erase, then retrieve DTCs. If DTC B1481 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 B1481 is retrieved, go to step 1 . If DTC B1401 is not
retrieved, system is normal at this time.
DTC B1482: DRIVER-SIDE AIR BAG MODULE SECOND-STAGE CIRCUIT SHORT TO VOLTAGE1. 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
ste
p.

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

2. Erase, then retrieve DTCs. Turn ignition off. If DTC B1482 is retrieved, go to
next step. If DTC B1482 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. 3 (Yellow/Green wire) and No. 4 (Yellow/Black wire) of connector C-305.
See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs. If
DTC B1482 is retrieved, go to next step. If DTC B1482 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. 11
(Yellow/Blue wire) and No. 12 (Yellow/Violet wire) on harness-side of
connector C-307. See Fig. 32
. Reconnect negative battery cable. Erase, then
retrieve DTCs. If DTC B1482 is retrieved, replace clockspring. Go to step 7 . I
f
DTC B1482 is not retrieved, go to next step.
5. Disconnect negative battery cable. Disconnect clockspring connector C-307.
Disconnect SRS ECU connector. Release SRS ECU connector shorting bar
using a cable tie. Measure voltage between ground and SRS ECU terminal No.
33 (Yellow/Blue wire) and No. 34 (Yellow/Violet wire). 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 B1482 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 B1482 is retrieved, go to step 1 . If DTC B1482 is not
retrieved, system is normal at this time.
DTCB1483: DRIVER-SIDE AIR BAG MODULE SECOND-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 dia
gnose CAN bus lines, re
pair CAN bus lines. Go to next

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

step.
2. Erase, then retrieve DTCs. Turn ignition off. If DTC B1483 is retrieved, go to
next step. If DTC B1483 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. 3 (Yellow/Green wire) and No. 4 (Yellow/Black wire) of connector C-305.
See Fig. 31
. Connect negative battery cable. Erase, then retrieve DTCs. If
DTC B1483 is retrieved, go to next step. If DTC B1483 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. 11
(Yellow/Blue wire) and No. 12 (Yellow/Violet wire) on harness-side of
connector C-307. See Fig. 32
. Reconnect negative battery cable. Erase, then
retrieve DTCs. If DTC B1483 is retrieved, replace clockspring. Go to step 7 . I
f
DTC B1483 is not retrieved, go to next step.
5. Disconnect negative battery cable. Disconnect clockspring connector C-307.
Disconnect SRS ECU connector. Release SRS ECU connector shorting bar
using a cable tie. Measure resistance between ground and SRS ECU terminal
No. 33 (Yellow/Blue wire) and No. 34 (Yellow/Violet wire). See Fig. 33
. If
resistance is not infinite at both terminals, go to next step. If resistance is
infinite at both terminals, reconnect components. Erase, then retrieve DTCs. If
DTC B1483 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 B1483 is retrieved, go to step 1 . If DTC B1401 is not
retrieved, system is normal at this time.
DTC B1484: DRIVER-SIDE AIR BAG MODULE 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
dia
gnose CAN bus lines and CAN bus lines are satis
factor
y, go to next ste
p. If

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

scan tool cannot diagnose CAN bus lines, repair CAN bus lines. Go to next
step.
2. Erase, then retrieve DTCs. If DTC B1484 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1484 is not retrieved, an intermittent condition
may exist.
DTC B1485: DRIVER-SIDE AIR BAG MODULE ACTIVATION CIRCUIT OPEN 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 B1485 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1485 is not retrieved, an intermittent condition
may exist.
DTC B1486: PASSENGER SEAT BELT WARNING LIGHT MALFUNCTION 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 B1486 is retrieved, go to
DTC B1487: PASSENGER SEAT BELT WARNING LIGHT DOES NOT
ILLUMINATE
. If DTC B1486 is not retrieved, an intermittent condition may
exist.
DTC B1487: PASSENGER SEAT BELT WARNING LIGHT DOES NOT ILLUMINATE 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 dia
gnose CAN bus lines, re
pair CAN bus lines. Go to next

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

Fig. 33
& Fig. 41
. If wire is okay, erase, then retrieve DTCs. If DTC B1489 is
retrieved, replace SRS ECU. Go to next step. If wire is not okay, repair as
necessary. Go to next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1489 is retrieved, go to step 1 . If DTC B1489 is not
retrieved, system is normal at this time.
DTC B1490: PASSENGER-SIDE AIR BAG MODULE SECOND-STAGE SHORT 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 B1490 is retrieved, go to
next step. If DTC B1490 is not retrieved, an intermittent condition may exist.
3. Turn ignition on. If DTC B1519 is retrieved by scan tool, go to next step. If
DTC B1519 is not retrieved by scan tool, go to step 5 .
4. Inspect SRS ECU connector C-26. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 30
. If
connectors are connected correctly, go to next step. If connectors are not
connected correctly, reconnect correctly. Go to step 9 .
5. Disconnect negative battery cable. Disconnect, then reconnect SRS ECU
connector C-26 and passenger-side air bag module C-09. Connect negative
battery cable. Using scan tool, erase, then retrieve DTCs. If DTC B1490 is
retrieved, go to next step. If DTC B1490 is not retrieved, intermittent condition
may have existed.
6. Disconnect negative battery cable. Disconnect passenger-side air bag module
connector C-09. See PASSENGER
-SIDE AIR BAG MODULE
under
REMOVAL & INSTALLATION. Connect Load Resistor (MB991865) to
Load Resistor Adapter (MB991866). Insert load resistor adapter leads into
harness-side terminals No. 3 (Yellow/Pink wire) and No. 4 (Yellow/Gray wire)
of connector C-09. See Fig. 35
. Connect negative battery cable. Erase, then
retrieve DTCs. If DTC B1490 is retrieved, go to next step. If DTC B1490 is
not retrieved, re
place
passen
ger-side air ba
g module.

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

7. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from passenger-side air bag module connector C-09. Disconnect SRS
ECU connector. Release SRS ECU connector shorting bar using a cable tie.
Measure resistance between SRS ECU connector terminals No. 31
(Yellow/Pink wire) and No. 30 (Yellow/Gray wire). If continuity exits, go to
next step. If continuity does not exist, reconnect SRS components. Erase, then
retrieve DTCs. If DTC B1490 is retrieved, replace SRS ECU. Go to step 9 .
8. Replace wire harness between SRS ECU and passenger-side air bag module.
Go to next step.
9. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1490 is retrieved, go to step 1 . If DTC B1490 is not
retrieved, system is normal at this time. DTC B1491: PASSENGER-SIDE AIR BAG MODULE SECOND-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 B1491 is retrieved, go to
next step. If DTC B1491 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger-side air bag module
connector C-09. See PASSENGER
-SIDE AIR BAG MODULE
under
REMOVAL & INSTALLATION. See Fig. 30
. Connect Load Resistor
(MB991865) to Load Resistor Adapter (MB991866). Insert load resistor
adapter leads into harness-side terminals No. 3 (Yellow/Pink wire) and No. 4
(Yellow/GRay wire) of connector C-09. See Fig. 35
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1491 is retrieved, go to next step. If
DTC B1491 is not retrieved, replace passenger-side air bag module. Go to step
5 .
4. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from connector C-09. Disconnect SRS ECU connector. See SRS
ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. Release SRS ECU connector shortin
g bar usin
g a cable tie.

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

Measure resistance of Yellow/Pink wire between SRS ECU connector terminal
No. 31 and passenger-side air bag module connector C-09, terminal No. 3. See
Fig. 33
& Fig. 35
. Measure resistance of Yellow/Gray wire between SRS
ECU connector terminal No. 30 and passenger-side air bag module connector
C-09, terminal No. 4. If resistance is more than 2 ohms in either wire, replace
wire harness between SRS ECU and passenger-side air bag module. Go to next
step. If resistance is less than 2 ohms in both wires, reconnect SRS
components. Erase, then retrieve DTCs. If DTC B1491 is retrieved, replace
SRS ECU. Go to next step
5. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1491 is retrieved, go to step 1 . If DTC B1491 is not
retrieved, system is normal at this time.
DTC B1492: PASSENGER-SIDE AIR BAG MODULE SECOND-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 B1492 is retrieved, go to
next step. If DTC B1492 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger-side air bag module
connector C-09. See PASSENGER
-SIDE AIR BAG MODULE
under
REMOVAL & INSTALLATION. See Fig. 30
. Connect Load Resistor
(MB991865) to Load Resistor Adapter (MB991866). Insert load resistor
adapter leads into harness-side terminals No. 3 (Yellow/Pink wire) and No. 4
(Yellow/Gray wire) of connector C-09. See Fig. 35
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1492 is retrieved, go to next step. If
DTC B1492 is not retrieved, replace passenger-side air bag module. Go to step
5 .
4. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from passenger-side air bag module connector C-09. Disconnect SRS
ECU connector C-26. See SRS ELECTRONIC CONTROL UNIT (SRS
ECU
) under REMOVAL & INSTALLATION. Release SRS ECU connecto
r

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