RVU 19F8 - Servicing Radiator Fans (GROUP 19, NO. 09-04)

INSTALLING ADAPTER HARNESS

1. Switch ignition off and remove ignition key.
2. Sedan:  Lift luggage compartment floor mat and secure it in position.

   Avant:  Remove luggage compartment floor covering (Fig 1,1) and spare wheel well cover plate (Fig 2, 2).

   Fig 1: Avant's Luggage Compartment Floor Covering (1) And Spare Wheel Well Cover Plate (2)

   
3. Release battery retaining strap (if installed).

   Tip:  If the battery retaining strap is not installed with a quick-release fastener, unscrew securing bolt on battery retaining strap.

   Fig 2: Battery Retaining Strap (1)

   
4. Use a screwdriver (Fig 3, 2) to release retaining clips (Fig 3, arrows) and detach cover (Fig 3, 1) for negative terminal.
   Fig 3: Negative Terminal Cover (1) And Retaining Clips (Arrows)

   
5. Loosen nut several turns and disconnect ground clamp (Fig 4, arrow) from battery terminal.
   Fig 4: Ground Clamp (Arrow)

   
6. Remove rubber seal (Fig 5, 1) from plenum chamber cover.
7. Detach plenum chamber cover (Fig 5, 2).
   Fig 5: Rubber Seal (1) And Plenum Chamber Cover (2)

   
8. Use screwdriver to pry off caps from wiper arms and unscrew hexagon nuts.
9. Detach wiper arms from shafts.
10. Unscrew left and right bolts (Fig 6, arrows) from cowl panel (Fig 6, 1).
    Fig 6: Bolts (Arrows) And Cowl Panel (1)

    
11. Unscrew bolts (Fig 7, arrows) and remove cover for electronics box.
    Fig 7: Locations Of Bolts (Arrows)

    
12. Carefully lever off retaining clip (Fig 8, 3) using a screwdriver (Fig 8, arrows 1 and 2) and remove engine control unit from electronics box.
    Fig 8: Direction (Arrows 1 And 2) To Lever Retaining Clip (3)

    

    Overview of adapter harness

    1. 4.0 mm² (red/green) at Coolant Fan Control (FC) Control Module J293
    2. 0.5 mm² (purple) to connector T4C/1
    3. 0.5 mm² (purple) to earth
    4. 4.0 mm² (red/green) to fuse S42
    5. 4.0 mm² (red/green) to fuse S104
    6. 4.0 mm² (red/green) at Coolant Fan Control (FC) Control Module 2 J671
       Fig 9: Adapter Harness

       
13. Disconnect 4.0 mm² wire (red/green) to Coolant FC Control Module J293.

    Disconnect Coolant FC Control Module 2 J671 from screw connection on fuses S42 (V6 and V8) and S104 (V8 only).

    Fig 10: Fuses S42 And S104

    
14. Cut off terminals from 4.0 mm² wire (red/green).
    Fig 11: 4.0 mm Wire With Terminals Removed

    
15. Connect adapter harness wire (Fig 12, 1) with 4.0 mm² wire (red/green) to Coolant FC Control Module J293.
16. On V8 engines, connect adapter harness wire (Fig 12, 6) with 4.0 mm² wire (red/green) to Coolant FC Control Module 2 J671.

    Tip:  Interchanging wires 1 and 6 does not affect function on V8 engines.

    Fig 12: Adapter Harness Wire (1)

    

    On V6 engines, you need to be sure not to switch the red and green wires between relays.

    Fig 13: Relays 1 And 2 - On V6 Engine, Red And Green Wires Cannot Be Switched Between Relays

    
17. Connect adapter harness wire (Fig 14, 4) to coolant fan fuse S42.
18. Connect adapter harness wire (Fig 14, 5) to second speed coolant fan fuse S104.

    Tip:  Interchanging wires 4 and 5 does not affect function.

    Fig 14: Terminals, Reconnected

    
19. Connect adapter harness wire (Fig 15, 3 [purple]) to ground. Remove nut, add 6 mm washer, install wire (3) and nut.
    Fig 15: Purple Adapter Harness Wire

    
20. Stow relays of adapter harness such that they cannot be damaged.
    Fig 16: Adapter Harness Relays, Stowed

    
21. Open connector T4C.
    Fig 17: Connector T4C

    
22. Cut through wire T4C/1.
    Fig 18: Wire T4C/1

    
23. Use connector to connect adapter harness wire (Fig 19, 2 [purple]) to both T4C/1 wires.
    Fig 19: Purple Adapter Harness Wire (2)

    
24. Connect battery. Installation is performed in the reverse sequence.

FUNCTION CHECK

1. Start the engine.
2. Set air conditioner to LOW and then press the AUTO button.

   If the radiator fans start up, the adapter harness is installed correctly.

PROCEDURES AFTER CONNECTING BATTERY

1. Activate automatic open/close function of electric windows.
2. Set clock.
3. Read the fault memory of all control units and erase if necessary.

   Tip:  After reconnecting the battery, the ESP warning lamp may remain lit until the vehicle has been driven a few meters.

ADDITIONAL REQUIRED VEHICLE UPDATE TECHNICAL SERVICE BULLETINS

Some of the affected vehicles may be involved in additional Required Vehicle Update Technical Service Bulletins. Please check your ElsaWeb Campaign/Action Information screen so that any additional required work can be done simultaneously. 

REQUIRED VEHICLE UPDATE TECHNICAL SERVICE BULLETIN VERIFICATION

For verification, always  check the ElsaWeb Campaign/Action Information screen. The ElsaWeb system is the only binding inquiry and verification system; other systems are not valid and may result in non-payment  of a claim.

HELP FOR CLAIM INPUT

For questions regarding claim input, contact the Warranty Helpline.

Please do not contact the Campaign Helpline regarding claim input.

REQUIRED CUSTOMER NOTIFICATION

Inform your customer in writing by recording on the Repair Order any and all work that was conducted on the vehicle, including any and all updates completed under this Required Vehicle Update Technical Service Bulletin.