Mercedes-Benz ML320. Manual — part 301

Fig. 243: Identifying Radio, CD Changer And CTEL Interface

3. After installing the interface in the radio slot, expose fiber optic cable connector (X39/43) (A), offnen and

take out the white insert (ws).

Fig. 244: Identifying White Insert And Fiber Optic Cable Connector

4. Place the white insert (ws) of the fiber optic cable wiring harness (31) into the fiber optic cable connector

(X39/43) (A) and close again.

5. Open the fiber optic cable connector (X39/43) (B) of the fiber optic cable wiring harness (31), place in the

white insert (ws) of the standard wiring harness and close again.

Shown on vehicle with radio A2 Radio

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 245: Identifying Fiber Optic Cable Connector (X39/43) (B) And Fiber Optic Cable Wiring
Harness

CONNECT WIRING HARNESS - AZ82.20-P-0001-02B

Model 163.113/128/136/154/172/174/175

Do not touch parts which conduct high voltages. Persons who wear electronic implants (e.g. heart
pacemakers) must not carry out any work on such components.

Connection diagram of wiring harness of illuminated door sill molding

Fig. 246: Connection Diagram Of Wiring Harness Of Illuminated Door Sill Molding

1. Raise fuse block in fuse and relay module (F1).

2. Push to the side the foam rubber block for cable opening into interior.

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

3. Route front part (6, 8, bl, rs) of wiring harness (1) of illuminated door sill moldings from left footwell to

fuse and relay module (F1).

Fig. 247: Identifying Relay Module, AAV Module And Connector

4. Pull gray 24-pin connector (3) off AAV module (N10).

5. Take blue cable (b) of left front door rotary tumbler out of chamber A8 and red cable (a) of right front

door rotary tumbler out of chamber B11 of connector (3).

6. Insert blue cable (b) into chamber 1 and red cable (a) into chamber 2 of the 4-pin coupling.

While this is done, the blue cable is then connected to the blue cable and the pink cable to the red

cable.

7. Connect 4-pin coupling to connector (8) of wiring harness of illuminated door sill molding.

Only if coupling is not already fitted to the connector (8).

Fig. 248: Identifying Blue Cable, Red Cable And Connector

8. Insert blue cable of left illuminated door sill molding (bl) into chamber A8 and pink cable of right

illuminated door sill molding (rs) into chamber B11 of 24-pin coupling (3).

9. Connect coupling (3) to AAV module (N10).

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 249: Identifying 24-Pin Coupling And 4-Pin Coupling

Only for model 163.136/154/172/174 up to VIN A289564, X754619.

10.1 Connect 4-pin coupling (6) of wiring harness of illuminated door sill molding to relay module at
plug point K10.

Only for model 163.113/128 and model 163.154/174/175 as of VIN A289565, X754620.

10.2 Remove red cable (9) from 4-pin coupling (6).

Only for model 163.113/128.

11.1 Separate 24-pin coupling (10) from connector P/D in fuse block.

12.1 Insert red cable (9) into chamber 11 of 24-pin coupling (10).

13.1 Connect coupling (10) to connector P/D in fuse block.

Fig. 250: Identifying Coupling And Red Cable

Only for model 163.154/174/175 as of VIN A289565, X754620.

11.2 Unplug 24-pin coupling (11) from connector P/B in fuse block.

12.2 Insert red cable (9) into chamber 12 of 24-pin coupling (11).

13.2 Connect coupling (11) to connector P/B in fuse block.

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me