Component description of passenger-side front seat adjustment control unit with memory - GF91.29-P-5224GZ

MODEL 164 with CODE (242) Electrically adjustable front passenger seat with memory 

Task 

The front passenger front seat adjustment control unit with memory is responsible for:

• Sensing the sensor signals (memory block number, circuit status)
• Sensing the switch statuses (seat adjustment switch);
• Control of motors for front passenger seat adjustment

Design 

Discrete inputs:

• Circuit 15R
• Terminal 30
• Circuit 31
• Hall sensor for seat adjustment motors

Discrete outputs:

• Power supply 12 V (+ and -) for all seat adjustment motors

Function 

The front passenger front seat adjustment control unit with memory has the following functions:

Reading in sensors 

• Height adjustment switch, driver
• Inclination adjustment switch
• Fore/aft adjustment switch
• Head restraint adjustment switch
• Memory switch (S92s9)
• memory button 1, 2, 3 switch (S92s14)
• Hall sensors for front passenger seat height at front or back
• Hall sensors for front passenger seat longitudinal adjustment or backrest adjustment
• Hall sensors for front passenger seat head restraint

Switching consumers using relays 

• Front passenger seat longitudinal adjustment motor(M28/1)
• Front passenger rear seat height motor (M28/2)
• Front passenger front seat height motor (M28/3)
• Front passenger head restraint motor (M28/4)
• Front passenger backrest angle adjustment motor (M28/5)

CAN signals 

The front passenger front seat adjustment control unit with memory is a subscriber on the passenger compartment CAN bus