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The following information covers electrical connections and plugs to the rear of the fuse/relay panel. It completes and supplements the information in the appropriate Service or Repair Manual for the fuse/relay panel section and should be used in conjunction with the wiring diagram for the vehicle or system in question. Volkswagen part numbers shown here may or may not match those on your panel, however, if you panel visually matches the diagram, it is correct for your application.

Fuse/Relay Panel - Rear Connections (Volkswagen Part Number 171 941 821 D)

Fuse/Relay Panel - Rear Connections

Connections and plugs on rear of fuse/relay panel:

A Blue 28 pin Instrument cluster wiring harness
B Red 28 pin Instrument cluster wiring harness (position 5 open)
C Yellow 22 pin Engine compartment/engine management, left side (position 10 open)
D White 29 pin Engine compartment/wiper motor wiring harness, right side (position 6. 10, 14, 18, 27, 28 open)
E Black 18 pin Rear wiring harness (position 17 open)
G n/a 1 pin 10 individual circuits
H Brown 6 pin Air conditioning/coolant fan relay wiring harness
K Neutral 5 pin Seat belt warning system/coolant level wiring harness
L Grey 4 pin Horn wiring harness
L Black 4 pin Headlight/dimmer switch wiring harness
M Black 2 pin Steering column switch wiring harness
M Black 2 pin Headlight/dimmer switch wiring harness
N Red 1 pin Separately fused circuits (glow plug wiring harness)
P Red 7 pin 7 single point connectors for terminal 30 circuit
R Green 2 pin Open/ECM power supply relay

Note: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market. Always consult appropriate wiring diagram for specific terminal assignments.

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