MITSUBISHI ENDEAVOR 2004 Service Repair Manual

Fig. 18: Retrieving Diagnostic Trouble Codes (DTCs)

Courtesy of MITSUBISHI

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

SCAN TOOL COMMUNICATION SYMPTOMS (SINGLE-STAGE AI
R
BAG SYSTEMS)
SCAN TOOL COMMUNICATION SYMPTOMS (DUAL-STAGE AIR BAG
SYSTEMS)
DIAGNOSTIC TROUBLE CODES (DTCS) IDENTIFICATION WITH
SINGLE-STAGE AIR BAG SYSTEM
Symptom
Ins
pection
Procedure
No communication with all systems
INSPECTION PROCEDURE
1
No communication with SRS only
INSPECTION PROCEDURE
2
Ignition switch on (engine stopped)AIR BAG warning light does not come on
(1)
AIR BAG warning light stays on after 7 seconds
(2)
(1)
See DTC 43: AIR BAG WARNING LIGHT DOES NOT ILLUMINATE
under .
(2)
See DTC 43: AIR BAG WARNING LIGHT STAYS ILLUMINATED

under .
Symptom
Inspection Procedure
No communication with all systems
INSPECTION PROCEDURE 1
No communication with SRS only
INSPECTION PROCEDURE 2
AIR BAG warning light does not come on
INSPECTION PROCEDURE 3
AIR BAG warning light stays on
INSPECTION PROCEDURE 4
DTC
Possible Cause

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

1A

Driver-side front impact sensor short circuit
1B

Driver-side front impact sensor open circuit
1C

Driver-side front impact sensor short to voltage
1D

Driver-side front impact sensor short to ground
2A

Passenger-side front impact sensor short circuit
2B

Passenger-side front impact sensor open circuit
2C

Passenger-side front impact sensor short to voltage
2D

Passenger-side front impact sensor short to ground
11
Front impact sensor short circuit
12
Front impact sensor either circuit open/no power
13
Front impact sensor both circuits open/no power
14
Analog "G" sensor system
15
Safing "G" sensor short circuit
16
Safing "G" sensor open circuit
17
Safing "G" side impact sensor
21
Driver-side air bag module short circuit
22
Driver-side air bag module open circuit
24
Passenger-side air bag module short circuit
25
Passenger-side air bag module open circuit
26
Driver-side seat belt pretensioner short circuit
27
Driver-side seat belt pretensioner open circuit
28
Passenger-side seat belt pretensioner short circuit
29
Passenger-side seat belt pretensioner open circuit
31 & 32
SRS ECU capacitor circuit
34
SRS ECU connector lock circuit
35
SRS ECU air bag system deployment
41
SRS ECU power circuit (Fuse No. 2)
42
SRS ECU power circuit (Fuse No. 3)
43
AIR BAG warning light does not illuminate
43
AIR BAG warning light stays illuminated
44
AIR BAG warning light

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

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

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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

4. Inspect wire harness between SRS ECU connector C-26, terminal No. 20
(Orange/Blue wire) and Data Link Connector C-23, terminal No. 7
(Orange/Blue wire), including connector C-104, for damage, loose connectors
or poor connections. If wire harness is okay, go to step 7 . If wire harness is not
okay, replace wire harness. Go to step 7 .
5. Inspect wire harness between SRS ECU connector C-26, terminals No. 15
(Black wire) and ground. If wire harness is okay, go to step 7 . If wire harness
is not okay, replace wire harness. Go to step 7 .
6. Inspect wire harness between SRS ECU connector C-26, terminals No. 13
(Black/White wire) and No. 16 (Black/Yellow wire) and ignition switch
connector C-308, including connectors C-211 and C-215. See Fig. 22
. If wire
harness is okay, go to next step. If wire harness is not okay, replace wire
harness. Go to step 7 .
7. Connect all SRS connectors. If scan tool communicates normally with SRS,
repair is complete. If communication is not normal, intermittent condition may
exist.

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