APRILIA RSV4 RR 2017 Service Station Manual page 228

Electrical system
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PIN 42 - Key input
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PIN 43 - Secondary air valve command output
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PIN 44 - Lambda 2 heater command output
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PIN 45 - Cylinder 4 lower injector command output
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PIN 46 - Cylinder 2 lower injector command output
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PIN 47 -
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PIN 48 - Rear throttle valve potentiometer 1 signal input
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PIN 49 - Front cylinders intake pressure sensor input
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PIN 50 - Rear throttle valve potentiometer 2 signal input
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PIN 51 - +5 V reference voltage output: A-C tracks, rear throttle valves and pressure sensor
(map)
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PIN 52 - Control unit direct power supply
Vehicle pinout key:
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PIN 53 - Cylinder 1 upper injector command output
ELE SYS - 228
RSV4 RR-RF