NHTSA ID Number: 10175780
Manufacturer Communication Number: TSB-20-52B-001
TSB/Document Date: 2020-05-26
Summary
This TSB updates the Interior and Supplemental Restraint System sections of the affected Service Manuals to update the Side Airbag Replacement Procedure. These changes are being made because the Side Airbag Module is now available as a single unit.
Page 1 of 20
SUBJECT:
UPDATES TO SIDE AIRBAG REPLACEMENT
PROCEDURE - SMR
No:
TSB-20-52B-001
DATE:
April 2020
MODEL:
See below
CIRCULATE TO:
[ ] GENERAL MANAGER
[ X ] PARTS MANAGER
[ X ] TECHNICIAN
[ X ] SERVICE ADVISOR
[ X ] SERVICE MANAGER
[ ] WARRANTY PROCESSOR
[ ] SALES MANAGER
PURPOSE
This TSB updates the Interior and Supplemental Restraint System sections of the affected Service
Manuals to update the Side Airbag Replacement Procedure. These changes are being made
because the Side Airbag Module is now available as a single unit.
AFFECTED VEHICLES
D
2015 - 2017 Lancer
D
2015 - 2017 Lancer Sportback (sold in Canada only)
AFFECTED SERVICE MANUALS
D
2015 - 2017 Lancer and Lancer Sportback Service Manual, Group 52A-Interior
D
2015 - 2017 Lancer and Lancer Sportback Service Manual, Group 52B-Supplemental Restraint
System
Copyright 2020, Mitsubishi
Motors North America, Inc.
Continued
The information contained in this bulletin is subject to change. For the latest version of this document, go to the
Mitsubishi Dealer Link, MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).
(4934)
Page 2 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52A-Interior -> Seat Assembly -> Disassembly and Assembly.
See next page
Page 3 of 20
TSB-20-52B-001
Page 4 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C27 Side-Airbag Squib (LH) Drive Circuit (Earth Side)
Shorted.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 5 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C28 Side-Airbag Squib (LH) Drive Circuit (Power
Supply Side) Shorted.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 6 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C29 Side Airbag Squib (LH) Open Circuit
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 7 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C2A Side-Airbag Squib (LH) Short Circuit.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 8 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C2B Side-Airbag Squib (RH) Drive Circuit (Earth Side)
Shorted.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 9 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C2C Side-Airbag Squib (RH) Drive Circuit (Power
Supply Side) Shorted.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 10 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C2D Side-Airbag Squib (RH) Open Circuit.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 11 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> SRS Airbag Diagnosis -> Diagnostic
Trouble Code Procedures -> DTC B1C2E Side-Airbag Squib (RH) Short Circuit.
Replace the front seatback assembly (Refer
to new information in this TSB) or side-airbag
module (Refer to new information in this
TSB)
Page 12 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> Post-Collision Diagnosis.
Front seatback assembly (Refer to
new information in this TSB)
or side-airbag module (Refer to new
information in this TSB)
Page 13 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> Side-Airbag Module(s) Removal and
Installation.
See new information later in this TSB
See next page
Page 14 of 20
TSB-20-52B-001
Page 15 of 20
TSB-20-52B-001
(see new information next few pages)
Page 16 of 20
TSB-20-52B-001
Please make the indicated changes to the 2015 - 2017 Lancer and Lancer Sportback Service
Manuals, Group 52B-Supplemental Restraint System (SRS) -> Air Bag Module and Seat Belt
Pre-Tensioner Disposal Procedure.
Page 17 of 20
TSB-20-52B-001
Refer to new info in this TSB
Page 18 of 20
TSB-20-52B-001
See next 2 pages
Page 19 of 20
TSB-20-52B-001
Page 20 of 20
TSB-20-52B-001
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TSB/Document ID: TSB-20-52B-001
Replacement Service Bulletin Number:
MFR Communication Date: 2020-04-08
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: AIR BAGS
MFR Component System:
MFR Component Subsystem:
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