Navigation Module: Locations

1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)SECTION Locations








1 - Connecting block with four multi-pin connections and a fuse
2 - 20-pin multi-pin harness connector I consisting of:
Yellow 6-pin partial connector
Green 6-pin partial connector
Blue 8-pin partial connector
3 - Brown 8-pin multi-pin connector II
4 - Black 8-pin multi-pin connector III
5 - Red 10-pin multi-pin connector IV
6 - Antenna connection GPS; connecting socket for navigation antenna on trunk lid.
7 - Securing bracket for antenna connection

Multi-pin harness connectors I, II ,III, IV at rear of -J401, terminal assignment







20-pin multi-pin connector I

1 - CAN-high telematic
2 - CAN-high display
3 - CAN screen telematic
4 - CAN-low telematic
5 - CAN-low display
6 - CAN screen display
7 - Button branch 2
8 - Output A
9 - Switch
10 - Button branch 3
11 - Output B
12 - Ground (GND)
13 - NF +
14 - NF mute navi
15 - NF -
16 - Telephone NF (+)
17 - Tel-active / mute FAW
18 - Tel-NF-screen
19 - Telephone NF (-)
20 - Not assigned

Brown 8-pin multi-pin connector II

1 - Not assigned
2 - Not assigned
3 - Not assigned
4 - Not assigned
5 - Not assigned
6 - Not assigned
7 - Not assigned
8 - Not assigned

Black 8-pin multi-pin connector III

1 - Gala (RPM signal)
2 - Reverse light switch
3 - K-diagnostic
4 - Terminal 15
5 - Not assigned
6 - Not assigned
7 - Terminal 30
8 - Terminal 31

Red 10-pin multi-pin connector IV

1 - Not assigned
2 - Not assigned
3 - Not assigned
4 - Not assigned
5 - Not assigned
6 - Not assigned
7 - Not assigned
8 - Not assigned
9 - Not assigned
10 - Not assigned

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.