Passenger Seat Airbag Warning Message On – DTC B0074 or B101D Set – 2014-2018 Chevrolet Impala

Bulletin No.: 17-NA-010
Date: February, 2019


Service Bulletin


TECHNICAL


Subject: Passenger Seat Airbag Warning Message On – DTC B0074 or B101D Set

Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Chevrolet Impala (VIN 1) 2014 2016
Impala 2017 2018

 

Involved Region or Country North America, Korea, Middle East, Israel
Condition Some customers may comment that the Service Airbag Warning Message is on.

The technician may find one of the following DTCs set:

  • B0074: Passenger Presence Sensor Circuit Malfunction set in the Passenger Presence Module
  • B101D: Electronic Control Unit Hardware set in the Passenger Presence Module
Cause This may be caused by the Passenger Presence System (PPS) sensor mat becoming loose or disengaged with seat usage over time.
Correction Passenger Presence System (PPS) sensor mat becoming loose or disengaged

Important: DO NOT open the felt (1) used covering the electrical connectors.

If DTC B0074 or B101D is set, then the technician should proceed to replace the Sensor Mat and Passenger Presence System Module.

 

Service Procedure

Important: When servicing DTC B0074 or B101D, ensure that the Passenger Presence Sensor Mat tail is correctly routed as shown in this bulletin.

  1. Remove the passenger side seat. Refer to Driver or Passenger Seat Removal and Installation in SI.
  2. Disconnect the electrical connectors, remove the seat cushion, and de-trim the cushion. Refer to Front Seat Cushion Cover and Pad Replacement in SI.

Passenger Presence System (PPS) sensor mat becoming loose or disengaged

  1. Using care, insert the PPS sensor mat pigtail (3) back through the foam opening making sure not to bend the sensor.
  2. Install the cushion onto the seat frame.
    • The sensor tail must be routed through the rear suspension opening below the seat frame (2) hanging freely.
    • Validate the wiring harness (3) has proper movement.

graphic depicts the incorrect pigtail harness route (1) and the correct pigtail harness route after repair (2).

 

Note: The graphic above depicts the incorrect pigtail harness route (1) and the correct pigtail harness route after repair (2).

  1. Reconnect all electrical connectors and install the trim cover.
  2. Install the passenger side seat.
  3. Check the PPS Module for any DTCs in history status and clear DTC.
  4. Perform the Passenger Presence System Preload Test (PPS Setup). Refer to Passenger Presence System Preload Test (PPS Setup) in SI.

 

Parts Information

Causal Part Description Part Number Qty
X Sensor Kit, Airbag Front Passenger Presence Refer to EPC 1
X MODULE, AIRBAG FRT PASS PRESENCE 1

 

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation Description Labor Time
6450910 Airbag Front Passenger Presence Module Replacement Use Published Labor
6450950 Airbag Front Passenger Presence Sensor Replacement Operation Time

 

Version 5
Modified April 19, 2017 – Updated the Cause, Correction and Service Procedure.

December 13, 2017 – Added the 2018 Model Year, updated the Service Procedure section and Warranty statement.

January 02, 2019 – Updated the Correction, Service Procedure and Warranty Information sections and added Parts Information.

February 15, 2019 – Updated the Parts Information section to refer to EPC.


Bulletin No.: 17-NA-010
Date: February, 2019

https://www.nhtsa.gov/recalls?nhtsaId=10154639

https://static.nhtsa.gov/odi/tsbs/2019/MC-10154639-9999.pdf

Download (PDF, 310KB)


 

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Last update on 2019-05-10 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-05-10 / Affiliate links / Images from Amazon Product Advertising API

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