61.00 S/A Speed channel 1 (wire A24) related fault : speed
channel is shorted to ground.
When only 1 speed channel has a failiure, and which is not the
engine speed channel, the controller will calculate what the
missing speed should be. If several speed channels have a
failiure, of the engine speed channel has a failiure, the
controller reverts to a "limp home" mode.
Contact maintenance for troubleshooting Speed channel SPC1 is shorted to ground. Check the wiring between the controller and the speed sensor connected to speed
channel 1. Check the speed sensor connected to speed channel 1.