O2 sensor MITSUBISHI ENDEAVOR 2004 Service Manual PDF

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

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

DUAL-STAGE AIR BAG SYSTE
M
DTC
Possible Cause
B1400

Driver-side air bag first-stage short circuit
B1401

Driver-side air bag module first-stage open circuit
B1402

Driver-side air bag module first-stage short to voltage
B1403

Driver-side air bag module first-stage short to ground
B1404

Driver-air bag module first-stage activation circuit short
B1405

Driver-side air bag module first-stage activation circuit open
B1406

Front impact G sensor (RH) failure
B1407

Front impact sensor (RH) voltage error
B1408

Front impact sensor (RH) communication error
B1409

Front impact sensor (RH) communication impossible
B1410

Passenger-side air bag module first-stage short circuit
B1411

Passenger-air bag module first-stage open circuit
B1412

Passenger-air bag module first-stage short to voltage
B1413

Passenger-air bag module first-stage short to ground
B1414

Passenger-air bag module first-stage activation circuit short
B1415

Passenger-side air bag module first-stage activation circuit short
B1416

Front impact G sensor (LH) failure
B1417

Front impact sensor (LH) voltage error
B1418

Front impact sensor (LH) communication error
B1419

Front impact sensor (LH) communication impossible
B1420

Side impact air bag module (RH) short circuit
B1421

Side impact air bag module (RH) open circuit
B1422

Side impact air bag module (RH) short to voltage
B1423

Side impact air bag module (RH) power short to ground
B1424

Side impact air bag module (RH) drive circuit shorted
B1425

Side impact air bag module (RH) drive circuit open
B1426

Side impact sensor (RH) failure
B1427

Side impact sensor (RH) voltage error
B1428

Side impact sensor (RH) power supply circuit
B142
9
Side im
pact sensor
(RH
) communication im
possibl
e

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

B1430

Side impact air bag module (LH) short circuit
B1431

Side impact air bag module (LH) open circuit
B1432

Side impact air bag module (LH) circuit short to voltage
B1433

Side impact air bag module (LH) circuit short to ground
B1434

Side impact air bag module (LH) drive circuit shorted
B1435

Side impact air bag module (LH) drive circuit open
B1436

Side impact sensor (LH) failure
B1437

Front impact sensor (LH) voltage error
B1438

Front impact sensor (LH) communication error
B1439

Front impact sensor (LH) communication impossible
B1460

Seat belt pretensioner (RH) short circuit
B1461

Seat belt pretensioner (RH) open circuit
B1462

Seat belt pretensioner (RH) circuit short to voltage
B1463

Seat belt pretensioner (RH) circuit short to ground
B1464

Seat belt pretensioner (RH) ignition drive circuit short detected
B1465

Seat belt pretensioner (RH) ignition drive circuit short detected
B1466

Analog G Sensor malfunction
B1467

Safing G sensor open circuit (frontal impact)
B1468

Safing G sensor short circuit (frontal impact)
B1469

Safing G sensor malfunction (side impact)
B1470

Seat belt pretensioner (LH) short circuit
B1471

Seat belt pretensioner (LH) open circuit
B1472

Seat belt pretensioner (LH) short to voltage
B1473

Seat belt pretensioner (LH) short to ground
B1474

Seat belt pretensioner (LH) ignition drive circuit short detected
B1475

Seat belt pretensioner (LH) ignition drive circuit open detected
B1476

Power supply voltage drops abnormally
B1477

Power supply voltage drops abnormally
B1478

SRS ECU capacitor circuit voltage high
B1479

SRS ECU capacitor circuit voltage low
B1480

Driver-side air bag module second-stage short circuit

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

B1481

Driver-side air bag module second-stage open circuit
B1482

Driver-side air bag module second-stage short to voltage
B1483

Driver-side air bag module second-stage short to ground
B1484

Driver-side air bag module activation circuit short
B1485

Driver-side air bag module activation circuit open
B1486

Passenger seat belt warning light malfunction
B1487

Passenger seat belt warning light does not illuminate
B1487

Passenger seat belt warning light does not turn of
f
B1488

Passenger AIR BAG OFF indicator circuit malfunction
B1489

Passenger AIR BAG OFF indicator light does not illuminate
B1489

Passenger AIR BAG OFF indicator light does not turn of
f
B1490

Passenger-side air bag module second-stage short circuit
B1491

Passenger-side air bag module second-stage open circuit
B1492

Passenger-side air bag module second-stage short to voltage
B1493

Passenger-side air bag module second-stage short to ground
B1494

Passenger-side air bag module second-stage activation circuit
short circuit
B1495

Passenger-side air bag module second-stage activation circuit
open circuit
B1496

SRS ECU non-volatile memory (EEPROM)
B1497

SRS ECU ASIC (frontal activation)
B1498

SRS ECU ROM or RAM
B1499

Collision decision
B1506

Seat slide sensor open
B1507

Seat slide sensor circuit short to ground
B1508

Seat slide sensor circuit short to voltage
B1509

Incorrect SRS ECU
B1519

SRS ECU connector lock malfunction
B1520

Seat belt switch (RH) malfunction
B1521

Seat belt switch (RH) circuit open for N/C terminal
B1522

Seat belt switch (RH) ground-side circuit shorted for N/C
terminal

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

B1523

Seat belt switch (RH) power-side circuit shorted for N/C
terminal
B1524

Seat belt switch (RH) circuit open for N/O terminal
B1525

Seat belt switch (RH) ground-side circuit shorted for N/O
terminal
B1526

Seat belt switch (RH) power-side circuit shorted for N/O
terminal
B1527

Seat belt switch (RH) circuit open for COM terminal
B1528

Seat belt switch (RH) ground-side circuit shorted for COM
terminal
B1529

Seat belt switch (RH) power-side circuit shorted for COM
terminal
B1530

Seat belt switch (LH) malfunction
B1531

Seat belt switch (LH) ground-side circuit shorted for N/C
terminal
B1532

Seat belt switch (LH) ground-side circuit shorted
B1533

Seat belt switch (LH) power-side circuit shorted for N/C
terminal
B1534

Seat belt switch (LH) circuit open for N/O terminal
B1535

Seat belt switch (LH) ground-side circuit shorted for N/O
terminal
B1536

Seat belt switch (LH) power-side circuit shorted for N/O
terminal
B1537

Seat belt switch (RH) circuit open for COM terminal
B1538

Seat belt switch (LH) ground circuit shorted
B1539

Seat belt switch (LH) power circuit shorted
B1540

Occupant classification ECU malfunction
B1541

Occupant classification ECU calibration malfunction
B1542

Occupant classification sensor (S1) malfunction
B1543

Occupant classification sensor (S2) malfunction
B1545

Occupant classification ECU communication error
B1546

Occupant classification ECU communication impossible

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

DIAGNOSTIC TESTS INSPECTION PROCEDURE 1 No communication between scan tool and all systems is most likely in power
supply or ground circuits to Data Link Connector (DLC). Check wire harness and
connectors for damage and loose connections. See WIRING DIAGRAMS
.
INSPECTION PROCEDURE 2 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disconnect
SRS ECU connector C-26. See SRS ELECTRONIC CONTROL UNIT
(SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 19
. Measure
resistance between SRS ECU connector C-26, terminal No. 20 (Orange/Blue
wire) and Data Link Connector (DLC), terminal No. 7 (Orange/Blue wire). See
Fig. 20
& Fig. 21
. If resistance is more than 2 ohms, go to next step. If
resistance is 2 ohms or less, go to step 4 .
2. Measure resistance between SRS ECU connector C-26, terminal No. 15 (Black
wire) and ground. If resistance is less than 2 ohms, go to next step. If resistance
is 2 ohms or more, go to step 5 .
3. Connect negative battery cable. Turn ignition on. Measure voltage between
ground and SRS ECU connector C-26, terminals No. 13 (Black/White wire)
and No. 16 (Black/Yellow wire). If voltage is less than 9 volts at either
terminal, go to step 6 . If voltage at both terminals is 9 volts or more, recheck
trouble s
ymptom. If s
ymptom still exists, re
place SRS ECU. Go to ste
p 7 .
B1547

Cut off for passenger-side air bag module
B1552

Changing circuit short
B1553

Changing circuit open
B1554

SG by-pass circuit malfunction
B1555

SG by-pass circuit (FET) open
B1556

Seat slide sensor malfunction
B1557

SRS ECU ASIC
B1558

Occupant classification ECU ID cord malfunction
U1073

BUS of
f

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

Fig. 22: Identifying Connector C
-211 & C
-215 Locations

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC 1A, 1B, 1C, 1D: DRIVER-SIDE FRONT IMPACT SENSOR MALFUNCTION 1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
.
Remove driver-side front impact sensor. See FRONT IMPACT SENSOR

under REMOVAL & INSTALLATION. Go to next step.
2. Inspect driver-side front impact sensor. See FRONT IMPACT SENSOR
under COMPONENT TESTING. If front impact sensor is okay, go to next
step. If front impact sensor is not okay, replace front impact sensor. Go to step
7 .
3. Disconnect SRS connector C-26. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 19
.
Disconnect driver-side front impact sensor connector A-21. Measure resistance
between SRS ECU connector C-26, terminal No. 3 (Black/Blue wire) and
terminal No. 4 (White/Blue wire) See Fig. 21
. Resistance should be infinite.
Measure resistance between
passen
ger-side front im
pact connector
A-21,

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

terminal No. 1 (Black/Red wire) and terminal No. 2 (White/Red wire).
Resistance should be infinite. See Fig. 23
. Go to next step.
4. Measure resistance between ground and SRS ECU connector C-26, terminals
No. 3 and 4. Resistance should be infinite. Measure resistance between ground
and front impact sensor connector A-21, terminal No. 1 and 2. Resistance
should be infinite.
5. Connect negative battery cable. Measure voltage between ground and SRS
ECU connector C-26, terminals No. 1 and 2. Voltage should not be present.
Measure voltage between ground and front impact sensor connector A-21,
terminal No. 1 and 2. Voltage should not be present. If resistance and voltage
checks are not as specified, go to next step. If resistance and voltage checks are
as specified, go to step 7 .
6. Visually inspect wire harness between SRS ECU connector C-26 and driver-
side front impact sensor connector A-21, including connector C-31. If wire
harness and connectors are okay, go to next step. If wire harness and
connectors are damaged, replace wire harness. Go to next step.
7. Reconnect all SRS components. Using scan tool, check for DTCs. If DTC 1A,
1B, 1C or 1D is retrieved, replace SRS ECU. If DTC 1A, 1B, 1C or 1D is not
retrieved, system is normal at this time. Intermittent condition may exist.
Fig. 23: Identifying Connector A
-21 & A
-24 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC 2A, 2B, 2C, 2D: PASSENGER-SIDE FRONT IMPACT SENSOR MALFUNCTION
2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
.
Remove passenger-side front impact sensor. See FRONT IMPACT SENSOR
under REMOVAL & INSTALLATION. Go to next step.
2. Inspect passenger-side front impact sensor. See FRONT IMPACT SENSOR

under COMPONENT TESTING. If front impact sensor is okay, go to next
step. If front impact sensor is not okay, replace front impact sensor. Go to step
7 .
3. Disconnect SRS connector C-24. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 19
.
Disconnect passenger-side front impact sensor connector A-24. Measure
resistance between SRS ECU connector C-24, terminal No. 1 (White/Red wire)
and No. 2 (Black/Red wire) See Fig. 21
. Resistance should be infinite.
Measure resistance between passenger-side front impact connector A-24,
terminal No. 1 (Black/Red wire) and No. 2 (White/Red wire). Resistance
should be infinite. See Fig. 23
. Go to next step.
4. Measure resistance between ground and SRS ECU connector C-24, terminals
No. 1 and 2. Resistance should be infinite. Measure resistance between ground
and front impact sensor connector A-24, terminal No. 1 and 2. Resistance
should be infinite.
5. Connect negative battery cable. Measure voltage between ground and SRS
ECU connector C-24, terminals No. 1 and 2. Voltage should not be present.
Measure voltage between ground and front impact sensor connector A-24,
terminal No. 1 and 2. Voltage should not be present. If resistance and voltage
checks are not as specified, go to next step. If resistance and voltage checks are
as specified, go to step 7 .
6. Visually inspect wire harness between SRS ECU connector C-24 and
passenger-side front impact sensor connector A-24. If wire harness and
connectors are okay, go to next step. If wire harness and connectors are
damaged, replace wire harness. Go to next step.
7. Reconnect all SRS components. Using scan tool, check for DTCs. If DTC 2A,
2B, 2C or 2D is retrieved, replace SRS ECU. If DTC 2A, 2B, 2C or 2D is not
retrieved, system is normal at this time. Intermittent condition may exist.
DTC 11
, 12 & 13: FRONT IMPACT SENSOR CIRCUIT

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

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. Disable air
bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Go
to next step.
2. Remove front impact sensors. See FRONT IMPACT SENSOR
under
REMOVAL & INSTALLATION. Inspect front impact sensors. See FRONT
IMPACT SENSOR
under COMPONENT TESTING. If front impact sensors
are okay, go to next step. If front impact sensors are not okay, replace front
impact sensors. Go to step 6 .
3. Install front impact sensors. Connect front impact sensor connectors.
Disconnect SRS ECU connector C-26. See SRS ELECTRONIC CONTROL
UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 19
.
Measure resistance between SRS connector C-26, terminals No. 3 (Black/Blue
wire) and No. 4 (White/Blue wire). See Fig. 21
. If resistance is 738-902 ohms,
go to next step. If resistance is not 738-902 ohms, check wire harness between
SRS ECU connector C-26 and left front impact sensor connector A-21.
Replace wire harness, if damaged. Go to step 6 .
4. Measure resistance between SRS connector C-26, terminals No. 1 (White/Red
wire) and No. 2 (Black/Red wire). If resistance is not 738-902 ohms, go to next
step. If resistance is 738-902 ohms, replace SRS ECU. Go to step 6
.
5. Inspect wire harness between SRS ECU connector C-26 and right front impact
sensor connector A-27. If wire harness is okay, go to next step. Replace wire
harness, if damaged. Go to next step.
6. Reconnect SRS components. Activate air bag system. Using scan tool, check
for DTCs. If DTCs 11, 12 or 13 are retrieved by scan tool, go to step 1 . If
DTCs 11, 12 or 13 are not retrieved by scan tool, system is normal at this time.
Intermittent condition may exist.
DTC 14: ANALOG "G" SENSOR SYSTEM If DTC 14 is present, replace SRS ECU. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL & INSTALLATION.
DTC 15, 16, 17: SAFING SENSOR CIRCUIT If DTC 15, 16 or 17 is present, replace SRS ECU. See SRS ELECTRONIC CONTROL UNIT
(SRS ECU
)under REMOVAL & INSTALLATION.

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