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2.2.3 Circuit Schematic of Changeover Module
Open out fold-out page! (Page 2-107)
Changeover module
A*
2-pin black pin housing to 2-pin black socket housing from navigation wiring harness
X1*
3-pin black pin housing to 3-pin black socket housing from navigation wiring harness
X2*
1-pin socket contact to unplugged pin contact at PIN 28 of black 8-pin speaker connector X18196, front left
X3*
1-pin socket contact to unplugged pin contact at PIN 29 of black 8-pin speaker connector X18196, front left
X4*
2-pin black socket housing (not required)
X5*
Ground terminal point, footwell on driver's side
X173
X1963 3-pin yellow plug connection, telephone speaker before production date 9/98
X1963 3-pin bordeaux plug connection, telephone speaker from production date 9/98
X18196 Black 8-pin speaker connector, left
1) Coding loop, blue wire
(not changed)
2) Coding loop, white wire
Coding loop closed:
Navigation announcement mutes radio
Coding loop open:
Navigation announcement does not mute radio.
The items marked with * refer only to this circuit schematic, all other items correspond to the BMW Service
schematics.
Wire colours:
bl = blue
ge = yellow
rt = red
gn = green
br = brown
ws = white
sw = black
EN 2-1 0 1
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