Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Electronic Throttle Control Module > Component Information > Description and Operation > Throttle Control > Page 552
Electronic Throttle Control Module: Description and Operation
Electronic Throttle Unit
The electronic throttle unit, using the control signal from the engine control module (ECM), regulates the amount of air for engine combustion. This is
The electronic throttle unit consists of a round throttle disc on a shaft. This is turned using a DC motor (damper motor), gear wheel and two springs, an
NOTE: A damaged terminal pin surface can interfere with the function
1. Current channels, potentiometers
The electronic throttle unit is located on the engine intake manifold.
In the event of a fault, the throttle unit must be replaced as a single unit.
The engine control module (ECM) can diagnose the electronic throttle unit.
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