LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Control Modules - Design And Function - 4 Of 4) >> Supplementary Restraint System (SRS) (2001-2004) >> System Overview >> Signals

System Overview: Signals

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2009 Volvo S60, 2008 Volvo S60, 2007 Volvo S60, 2006 Volvo S60, and 2005 Volvo S60. However, it is still accessible from the selected car via links, so may be relevant.

The chart below summarizes the input signals to and output signals from the supplemental restraint system module (SRS). The signal types are divided into directly connected signals and Controller area network (CAN) communication. The following illustration displays the same information with the Volvo component designations.

Input signals Output signals
Directly connected:  Directly connected: 
Side impact sensor left B-post (7/115) Central electronic module (CEM) (4/56), collision output signal
Side impact sensor right B-post (7/116) Phone Module (PHM) (16/60), collision output signal
Side impact sensor left C-post (7/108) Seat belt tensioner left front (8/33)
Side impact sensor right C-post (7/109) Seat belt tensioner right front (8/34)
Seat belt buckle (3/94) (from model year 2003-) Seat belt tensioner left rear (8/55)
Seat belt buckle (3/93) (from model year 2003-) Seat belt tensioner right rear (8/56)
  Seat belt tensioner center rear (8/62)
  Airbag passenger front stage 1 (8/31)
  Airbag passenger front stage 2 (8/32)
  Airbag driver stage 1 (8/30)
  Airbag driver stage 2 (8/61)
  Side impact protection (SIPS) bag left front (8/51)
  Side impact protection (SIPS) bag right front (8/52)
  Left inflatable curtain (8/66)
  Right inflatable curtain (8/67)
Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
Central electronic module (CEM) (4/56) Central electronic module (CEM) (4/56)
Driver information module (DIM) (5/1) Driver information module (DIM) (5/1)
  Phone module (PHM) (16/60)
  Rear electronic module (REM) (4/58)
Fig 1: Identifying Supplementary Restraint System Input And Output Signals
GLL107638Courtesy of VOLVO CARS OF NORTH AMERICA.