Connecting/routing connection wiring harness of interior motion sensor - AN80.50-P-0100-02B

Model 210.2 as of 01.03.97 with code 551a (ATA), installed at factory

Survey of interior motion sensor connection wiring harness

Fig 1: Identifying Interior Motion Sensor Connection Wiring Harness

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Connect leads and tie-outs to present leads and wiring harnesses.

Avoid chafing points, if necessary install chafe guard.

Route tie-out with 2-pin connector (7) to left vehicle side along ATA/TS wiring harness for connecting to left rear glass breakage sensor (B39) and route to rear in left wiring duct.
Route lead tie-out upward to left side window of load compartment over left wheelhouse and connect connector (7) to left rear glass breakage sensor (B39).
Route lead tie-out with 2-pin connector (1) upward to right side window of load compartment over right wheelhouse for connecting to right rear glass breakage sensor (B39/1) and connect to glass breakage sensor.

Fig 2: Identifying Left Rear Glass Breakage Sensor
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Determine black (sw) lead (8) for rear window defroster (R1) in rear area of right cable duct.
Separate lead (8) and connect black (sw) lead (6) to IMS connection wiring harness.

Fig 3: Identifying Rear Window Defroster Lead
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Remove 18-pin connector for ATA/TS wiring harness from PSE control module (combined) (A37).
Connect leads (4 and 5) of IMS connection wiring harness to 18-pin connector:
- Connect yellow (ge)lead (4)to plug location 1.
- Connect blue (bl)lead (5)to plug location 13.
  The figure shows the assignment for the 18-pin connector from the connector side.
  
  Fig 4: Identifying 18-Pin Connector
  Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Route IMS connection wiring harness with 4-pin connector (2) along main wiring harness toward rear to right D-pillar for connecting to interior motion sensor transmitter and receiver (A26/14).
Route connection wiring harness to D-pillar upward to roof area and route to installation location of interior motion sensor transmitter and receiver.
Fasten connection wiring harness in roof area with tape.

Fig 5: Identifying 4-Pin Connector
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Unclip fuse block B from rear fuse box (F4).
Connect IMS connection wiring harness to fuse block B:
- Connect red/blue (rt/bl)lead (3)to plug location A of fuse (F4f11).
  
  Fig 6: Identifying Fuse Box
  Courtesy of MERCEDES-BENZ OF NORTH AMERICA.