2004 MITSUBISHI ENDEAVOR ignition

retrieve DTCs. If DTC B1411 is retrieved, go to step 1 . If DTC B1411 is not
retrieved, system is normal at this time.
DTC B1412: PASSENGER-SIDE AIR BAG MODULE FIRST-STAGE 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 B1412 is retrieved, go to
next step. If DTC B1412 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. 1 (Yellow/Green wire) and No. 2
(Yellow/Red wire) of connector C-09. See Fig. 35
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1412 is retrieved, go to next step. If
DTC B1412 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 connector
shorting bar using a cable tie. Measure voltage between ground and SRS ECU
connector C-26, terminal No. 27 (Yellow/Green wire) and No. 28 (Yellow/Red
wire). See Fig. 33
. If voltage is measured at either terminal, go to next step. If
voltage is not measured at either terminal, reconnect SRS components. Erase,
then retrieve DTCs. If DTC B1412 is retrieved, replace SRS ECU. Go to step
6 .
5. Replace wire harness between SRS ECU and passenger-side air bag module.
Go to next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1412 is retrieved,
go to ste
p 1 . If DTC B1412 is not

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

retrieved, system is normal at this time.
DTCB1413: PASSENGER-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 B1413 is retrieved, go to
next step. If DTC B1413 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. 1 (Yellow/Green wire) and No. 2
(Yellow/Red wire) of connector C-09. See Fig. 35
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1413 is retrieved, go to next step. If
DTC B1413 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 connector
shorting bar using a cable tie. Measure resistance between ground and SRS
ECU connector terminals No. 27 (Yellow/Green wire) and No. 28 (Yellow/Red
wire). See Fig. 33
. If resistance is not infinite, go to next step. If resistance is
infinite, reconnect SRS components. Erase, then retrieve DTCs. If DTC B1413
is retrieved, replace SRS ECU. Go to step 6 .
5. Replace wire harness between SRS ECU and passenger-side air bag module.
Go to next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1412 is retrieved, go to step 1 . If DTC B1412 is not
retrieved, system is normal at this time.
DTC B1414: PASSENGE
R-SIDE AIR BAG MODULE FIRST-STAGE ACTIVATION CIRCUIT

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

ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1416 is not retrieved, system is normal at this
time.
DTC B1417: FRONT IMPACT SENSOR (LH) VOLTAGE ERROR 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 B1417 is retrieved, go to next step. If DTC
B1417 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery terminal. Disconnect driver-side front impact
sensor connector A-21. See FRONT IMPACT SENSOR
under REMOVAL
& INSTALLATION. See Fig. 30
. Connect negative battery cable. Turn
ignition on. Measure voltage between ground and terminal No. 2 (Black/Blue
wire) of driver-side front impact sensor. See Fig. 34
. If voltage is 9 volts or
more, replace front impact sensor. Go to step 1 . If voltage is less than 9 volts,
go to next step.
4. Disconnect SRS ECU connector C-26. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. Inspect
White/Blue wire between SRS ECU connector C-26, terminal No. 38 and front
impact sensor connector A-21, terminal No. 1 for an open or short circuit,
including connector C-31. Inspect Black/Blue wire between SRS ECU
connector C-26, terminal No. 39 and front impact sensor connector A-21,
terminal No. 2 for an open or short circuit, including connector C-31. 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 B1417 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 B1417 is retrieved, go to step 1 . If DTC B1417 is not
retrieved, system is normal at this time.
DTC B1418: FRONT IMPACT SENSOR (LH) COMMUNICATION ERROR
2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

B1419 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Replace driver-side front impact sensor with
passenger-side front impact sensor. See FRONT IMPACT SENSOR
under
REMOVAL & INSTALLATION. Connect negative battery cable. Erase, then
retrieve DTCs. If DTC B1408 or B1409 is retrieved, replace driver-side front
impact sensor. If DTC B1408 or B1409 is not retrieved, go to next step.
4. Disconnect SRS ECU connector C-26. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 30
.
Inspect White/Blue wire between SRS ECU connector C-26, terminal No. 38
and front impact sensor connector A-23, terminal No. 1 for an open or short
circuit, including connector C-31. See Fig. 33
& Fig. 34
. Inspect Black/Blue
wire between SRS ECU connector C-26, terminal No. 39 and front impact
sensor connector A-23, terminal No. 2 for an open or short circuit, including
connector C-31. 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
B1418 is retrieved, replace SRS ECU. Go to next step.
5. Reconnect SRS components. Erase, then retrieve DTCs. If DTC B1419 is
retrieved, go to step 1 . If DTC B1419 is not retrieved, system is normal at this
time.
DTC B1420: SIDE IMPACT AIR BAG MODULE (RH) 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 B1420 is retrieved, go to
next step. If DTC B1420 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-25. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 30
. If
connector is connected correctl
y, go to next ste
p. If connector is not connected

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

Fig. 36: Identifying Connector D
-26 & D
-31 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC B1421: SIDE IMPACT AIR BAG MODULE (RH) 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 B1421 is retrieved, go to
next step. If DTC B1421 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger side impact air bag
module connector D-31. See SIDE IMPACT 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. 1 (Yellow wire) and No. 2
(Yellow/Black wire) of connector D-31. See Fig. 36
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1421 is retrieved, go to next step. If
DTC B1421 is not retrieved, replace passenger side impact air bag module.
4. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from passenger side impact air bag module connector D-31.
Disconnect SRS ECU connector
C-25. See SRS ELECTRONIC CONTROL

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

UNIT (SRS ECU)
under REMOVAL & INSTALLATION. Release SRS ECU
connector shorting bar using a cable tie. Measure resistance of Yellow wire
between SRS ECU connector C-25, terminal No. 58 and terminal No. 1 of
connector D-31. See Fig. 33
. Measure resistance of Yellow/Black wire
between SRS ECU connector C-25, terminal No. 57 and terminal No. 2 of
connector D-31. If resistance is 2 ohms or more in each wire, go to next step. If
resistance is less than 2 ohms in each wire, reconnect SRS components. Erase,
then retrieve DTCs. If DTC B1421 is retrieved, replace SRS ECU. Go to step
6 .
5. Replace wire harness between SRS ECU and passenger side impact air bag
module. Go to next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1421 is retrieved, go to step 1 . If DTC B1421 is not
retrieved, system is normal at this time.
DTC B1422: SIDE IMPACT AIR BAG MODULE (RH) 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 B1422 is retrieved, go to
next step. If DTC B1422 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger side impact air bag
module connector D-31. See SIDE IMPACT 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. 1 (Yellow wire) and No. 2
(Yellow/Black wire) of connector D-31. See Fig. 36
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1422 is retrieved, go to next step. If
DTC B1422 is not retrieved, replace passenger side impact air bag module.
4. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from passenger side impact air bag module connector D-31.
Disconnect SRS ECU connector
C-25. See SRS ELECTRONIC CONTROL

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

UNIT (SRS ECU)
under REMOVAL & INSTALLATION. Release SRS ECU
connector shorting bar using a cable tie. Measure voltage between ground and
SRS ECU connector C-25, terminal No. 58 (Yellow wire). See Fig. 33
.
Measure voltage between ground and SRS ECU connector C-25, terminal No.
57 (Yellow/Black wire). If voltage is measured at either terminal, go to next
step. If voltage is not measured at both terminals, reconnect SRS components.
Erase, then retrieve DTCs. If DTC B1422 is retrieved, replace SRS ECU. Go to
step 6 .
5. Replace wire harness between SRS ECU and passenger side impact air bag
module. Go to next step.
6. Reconnect all SRS components. Activate air bag system. Using scan tool,
retrieve DTCs. If DTC B1422 is retrieved, go to step 1 . If DTC B1422 is not
retrieved, system is normal at this time.
DTC B1423: SIDE IMPACT AIR BAG MODULE (RH) 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 B1423 is retrieved, go to
next step. If DTC B1423 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger side impact air bag
module connector D-31. See SIDE IMPACT 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. 1 (Yellow wire) and No. 2
(Yellow/Black wire) of connector D-31. See Fig. 36
. Connect negative battery
cable. Erase, then retrieve DTCs. If DTC B1423 is retrieved, go to next step. If
DTC B1423 is not retrieved, replace passenger side impact air bag module.
4. Disconnect negative battery cable. Remove load resistor and load resistor
adapter from passenger side impact air bag module connector D-31.
Disconnect SRS ECU connector C-25. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. Release SRS ECU

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

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.
2. Erase, then retrieve DTCs. If DTC B1426 is retrieved, go to next step. If DTC
B1426 is not retrieved, an intermittent condition may exist.
3. Replace passenger-side impact sensor. See FRONT IMPACT SENSOR

under REMOVAL & INSTALLATION. Reconnect SRS components. Erase,
then retrieve DTCs. If DTC B1426 is retrieved, replace SRS ECU. See SRS
ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1426 is not retrieved, system is normal at this
time.
DTC B1427: SIDE IMPACT SENSOR (RH) VOLTAGE ERROR 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 B1427 is retrieved, go to
next step. If DTC B1427 is not retrieved, an intermittent condition may exist.
3. Disconnect negative battery cable. Disconnect passenger side impact sensor
connector D-33. See SEAT SLIDE SENSOR
under REMOVAL &
INSTALLATION. See Fig. 30
. Connect negative battery cable. Turn ignition
on. Measure voltage between ground and side impact sensor connector D-33,
terminal No. 2 (Black/Red wire). See Fig. 37
. If voltage is 9 volts or more,
replace side impact sensor. Go to step 6 . If voltage is less than 9 volts, go to
next step.
4. Disconnect negative battery cable. Disconnect SRS ECU connector C-25. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. Release SRS ECU connector shorting bar using a cable tie.
Measure resistance of Black/Red wire between SRS ECU connector C-25,
terminal No. 63 and side impact sensor connector D-33, terminal No. 2.
Measure resistance of White/Red wire between SRS ECU connector
C-25,

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