2004 MITSUBISHI ENDEAVOR can bus

Fig. 45: Identifying Connector D
-38 Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
DTC B1546: OCCUPANT CLASSIFICATION ECU COMMUNICATION IMPOSSIBLE 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 B1546 is retrieved, go to
next step. If DTC B1546 is not retrieved, an intermittent condition may exist.
3. Disconnect occupant classification ECU connector D-38, located under
passenger-side front seat. Measure resistance between ground and harness-side
of connector D-38, terminal No. 1. See Fig. 45
. If resistance is 2 ohms or less,
go to next step. If resistance is more than 2 ohms, repair short to ground. Go to
step 8 .
4. Turn ignition on. Measure voltage between ground and harness-side of
connector D-38, terminal No. 2. If voltage is about 12 volts, go next step. If
voltage is not about 12 volts, go to step 8 .
5. Ins
pect Black/White wire for an o
pen or short circuit between connector D-38,

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

terminal No. 2 and ignition switch connector C-308, terminal No. 2. If wire is
okay, go to step 8 . If wire is not okay, replace wire harness between occupant
classification ECU and ignition switch connector C-308. Go to step 8 .
6. Disconnect SRS ECU connector C-25. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL & INSTALLATION. See Fig. 30
.
Inspect Sky Blue wire for an open or short circuit between connector D-38,
terminal No. 3 and SRS ECU connector C-25, terminal No. 66. See Fig. 33
. If
wire is okay, reconnect SRS components. Erase, then retrieve DTCs. If DTC
B1545 is retrieved, replace front seat slide adjuster. Go to next step. If wire
harness is not okay, replace wire harness. Go to step 8 .
7. Erase DTCs. Turn ignition on. If DTC B1546 is retrieved, replace SRS ECU.
Go to next step. If DTC B1546 is not retrieved, diagnosis is complete.
8. Erase, then retrieve DTCs. If DTC B1546 is retrieved, go to step 1 . If DTC
B1546 is not retrieved, system is normal at this time.
DTC B1547: CUT OFF FOR PASSENGER-SIDE AIR BAG MODULE 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 B1547 is retrieved, go to
next step. If DTC B1547 is not retrieved, an intermittent condition may exist.
3. If DTCs other than DTC B1457 are retrieved, diagnose indicated DTC. See
DIAGNOSTIC TROUBLE CODES (DTCS) IDENTIFICATION WITH
SINGLE
-STAGE AIR BAG SYSTEM
table. If only DTC B1547 is
retrieved, go to next step.
4. Using scan tool, erase, then retrieve DTCs. If DTC B1547 is retrieved, replace
SRS ECU. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under
REMOVAL & INSTALLATION. If DTC B1547 is not retrieved, diagnosis is
complete.
DTC B1552: CHANGING CIRCUIT SHORT 1. Connect scan tool to Data Link Connector
(DLC
). SeeINITIAL SRS

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

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 B1552 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1552 is not retrieved, an intermittent condition
may exist.
DTC B1553: CHANGING 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 B1553 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1553 is not retrieved, an intermittent condition
may exist.
DTCB1554: SG BY-PASS CIRCUIT 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. If DTC B1554 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1554 is not retrieved, an intermittent condition
may exist.
DTC B1555: SG BY-PASS CIRCUIT (FET) OPEN 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. If scan tool is able to

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

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 B1555 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1555 is not retrieved, an intermittent condition
may exist.
DTC B1556: SEAT SLIDE SENSOR 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 B1556 is retrieved, go to
next step. If DTC B1556 is not retrieved, an intermittent condition may exist.
3. Replace seat slide sensor. See SEAT SLIDE SENSOR
under REMOVAL &
INSTALLATION. Check for DTCs. If DTC B1556 is retrieved, replace SRS
ECU. See SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under
REMOVAL & INSTALLATION. If DTC B1556 is not retrieved, procedure is
complete.
DTCB1557: SRS ECU ASIC 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 B1557 is retrieved, replace SRS ECU. See
SRS ELECTRONIC CONTROL UNIT (SRS ECU)
under REMOVAL &
INSTALLATION. If DTC B1557 is not retrieved, an intermittent condition
may exist.
DTCB1558: OCCUPANT CLASSIFICATION ECU ID CORD MALFUNCTION
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. Go to next
step.
2. Erase, then retrieve DTCs. If DTC B1558 is retrieved, replace seat slide sensor.
See SEAT SLIDE SENSOR
under REMOVAL & INSTALLATION. If DTC
B1558 is not retrieved, an intermittent condition may exist.
DTC U1073: BUS OFF 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 scan tool retrieves DTC U1073, replace A/C
ECU. If scan tool does not retrieve DTC U1073, an intermittent condition may
exist.
COMPONENT TESTING OCCUPANT CLASSIFICATION SENSOR CALIBRATION (DUAL-STAGE AIR BAG SYSTEM) 1. Connect scan tool to Data Link Connector (DLC). See INITIAL SRS
DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. Go to next step.
2. Open and close passenger-side front door 5 times hard to remove friction. If
door does not open and close smoothly after the impact, hit front and rear sides
of seat back about 8 times each to remove friction. Go to next step.
3. Select INTERACTIVE DIAGNOSIS, then SPECIAL FUNCTION then SEAT
WEIGHT SENSOR ACCURACY CHECK on screen. Slide passenger-side
front seat to full forward position. Place a 66 pound weight (30 kg) in center of
passenger-side seat cushion. Repeat step2 . Touch OK button to perform
accuracy check.
4. If variance between sensor output and input levels is within 11 pounds (5 kg),
ACCURACY CHECK COMPLETION will be dis
played on screen. Go to ste
p

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

2. Turn the ignition switch to the "ON" position.
3. Carry out inspection by means of the data list. If there is an abnormality, check
and repair the chassis harnesses and components. (Refer to DATA LIST
REFERENCE TABLE
).
4. Re-check using scan tool MB991958 and check to be sure that the abnormal
input and output have returned to normal because of the repairs.
5. Erase the diagnostic trouble codes.
6. Turn the ignition switch to the "LOCK" (OFF) position.
7. Disconnect scan tool MB991958.
8. Start the engine again and do a test drive to confirm that the problem is
eliminated.
HOW TO DIAGNOSE THE CAN BUS LINE REQUIRED SPECIAL TOOLS:
MB991958: Scan Tool (MUT-III Sub assembly)
MB991824: V.C.I. MB991827: USB Cable MB991910: Main Harness A
1. Connect scan tool MB991958 to the data link connec
tor.
CAUTION: To prevent damage to scan tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting scan tool
MB991958.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it matches the vehicle
which is diagnosed CAN bus line.
If they matches, go to step 8. If not, go to step 5.
5. Select "view vehicle information" button.
6. Input the vehicle information and press "OK".
7. When the vehicle information is displayed, confirm again that it matches the
vehicle which is diagnosed CAN bus line. If they matches, go to step 8. If not, go to Step 5 .
8. Press the "OK" button.
9. When the options are displayed, choose the options (mark the check) and then
select "OK".
DIAGNOSTIC TROUBLE CODE CHART Check according to the inspection chart that is appropriate for the diagnostic trouble
code.
Fig. 8: Identifying Diagnostic Trouble Code Chart

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
CIRCUIT OPERATION The PCM detects "CRUISE" (MAIN) switch "ON" signal to illuminate the
"CRUISE" indicator light on the combination meter. COMMENT Connector(s), wiring harness in the CAN bus line between the PCM and the
combination meter, power supply to the PCM, the combination meter, the PCM
may be defective. TROUBLESHOOTING HINTS
Malfunction of the combination meter Damaged harness, connector Malfunction of the PCM
DIAGNOSIS REQUIRED SPECIAL TOOL:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: V.C.I. MB991827: USB Cable MB991910: Main Harness A
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
Use scan tool MB991958 to diagnose the CAN bus lines.
1. Connect scan tool MB991958 to the data link connec
tor.
(Refer to AUTO
-
CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor