2004 MITSUBISHI ENDEAVOR clock

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

INSTALLATION. If DTC B1478 is not retrieved, an intermittent condition
may exist.
DTC B1479: SRS ECU CAPACITOR CIRCUIT VOLTAGE LOW 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 B1479 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1479 is not retrieved, an intermittent condition
may exist.
DTC B1480: DRIVER-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 B1400 is retrieved, go to
next step. If DTC B1400 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
connector is engaged correctly, go to next step. If connector is not engaged
correctly, engage correctly. Go to step 10 .
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 B1480 is retrieved, go to next step. If DTC B1480
is not retrieved, intermittent condition may have existed.
6. Disconnect negative battery cable. Remove driver-side air bag module. See
DRIVE
R-SIDE AIR BAG MODULE & CLOCKSPRIN
Gunde
r

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

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