GF54.21-P-6030RC Rear SAM Control Unit With Fuse and Relay Module, Component Description

GF54.21-P-6030RC Rear SAM Control Unit With Fuse And Relay Module, Component Description

Component Identification:

Location
The rear SAM control unit is located behind the trim in the the control unit carrier.

Task
The rear SAM control unit has the following tasks:
^ Reading in of sensors, pickups and signals
^ Evaluation of input factors
^ Control of systems
^ Actuation of components
^ Power supply and relay switching

Reading in of sensors, pickups and signals
The input factors are read in with the following connections:
^ Direct line
^ Interior CAN

Direct line
The following components are read in via a direct line:
- Fuel level sensor (B4)
- For code (551) Anti-theft alarm system (ATA [EDW]):
- ATA [EDW] inclination sensor (B33)
- ATA [EDW] hood switch (S62)
- ATA [EDW] glove box switch (S62/7)
- ATA [EDW] center console compartment switch (S62/8)
- ATA [EDW] rear panel stowage compartment switch (S62/38)

- Left door contact switch (S17/3)
- Right door contact switch (S17/4)
- Trunk lid rotary tumbler microswitch (S88/1)
- Trunk lid contact switch (S88/6) (with code (494) USA version)
- Trunk lid external operation switch (S88/8)
- Trunk lid emergency release switch (S88/10) (with code (494) USA version)

Interior CAN
The rear SAM control unit reads in function-relevant information via the interior CAN.

Evaluation of input factors
The input factors are evaluated by the microprocessor and the corresponding components are actuated.

Control of systems
The rear SAM control unit controls the following systems:
- Rear exterior lights (ABL)
- Trunk illumination
- Rear window defroster
- Turn signal functions
- Emergency door opening after accident
- Trunk lid remote release
- Lumbar support (with code (U22) Lumbar support adjustment)
- Anti-theft alarm system (ATA [EDW]) (with code (551) Antitheft alarm system (ATA [EDW]))

Actuation of components
Components are actuated with the following lines:
^ Direct line
^ Interior CAN

Direct line
The following components are actuated via a direct line:
- Left taillights (E3)
- Right taillights (E4)
- Left rear side marker lamp (United States of America) (E3e6) and right rear side marker lamp (United States of America) (E4e6) (with code (494) USA version)
- Left luggage compartment lamp (USA) (E18/5)
- Left license plate lamp (E19/1) and right license plate lamp (E19/2)
- Center high-mounted stop lamp (E21)
- Alarm signal siren (H3/1) (with code (551) Anti-theft alarm system (ATA [EDW]))
- Lumbar support pump (M25/1) (with code (U22) Lumbar support adjustment)
- Trunk lid emergency release switch
- Trunk lid central locking motor (S88/1m1)

Interior CAN
The rear SAM control unit transmits requests for function-relevant actuations via the interior CAN.

Power supply and relay switching
- Fuel pump relay (N10/2kA)
- Relay 2, terminal 15R (N10/2kB)
- VICS relay (N10/2kB) (with code (498) Japan version)
- Spare relay 2 (N10/2kC)
- Backup relay 1 (N10/2kD)
- Heated rear window relay (N10/2kE)
- Relay 1, terminal 15R (N10/2kF)
- Fuel filler cap polarity reverser relay 1 (N10/2kG)
- Fuel filler cap polarity reverser relay 2 (N10/2kH)