Workshop Repair Manuals

Volvo Workshop Manuals

[PREV PAGE] [NEXT PAGE]

volvo Workshop Repair Guides


V50 L5-2.4L VIN 39 B5244S7 (2005)

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Description and Operation > Adaptive Functions > Page 1776

Page 4
background image

Detecting the reference positions of the camshaft

The crankshaft has five reference positions, one for each camshaft flank. The reference positions are predetermined points on the flywheel. The reference
positions are detected using the signal from the engine speed (RPM) sensor. See also:  Design See: Powertrain Management/Computers and Control
Systems/Description and Operation/Engine Control Module (ECM)/Design 
The camshaft rotates at half the speed of the crankshaft. Two engine revolutions are required to detect all five camshaft flanks:
The positions on the flywheel are designated °CA (Crank angle). 0°CA = Top dead center cylinder 1.

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Description and Operation > Adaptive Functions > Page 1776

[PREV PAGE] [NEXT PAGE]