Service manual

CANDoo Professional
265
3.2.3.5 Activate Tab
Activate Features:
The Activate page allows you to dynamically test a number of components to simplify
troubleshooting
NOTE: Most of the Activate features are used while engine is off unless otherwise specified!
Description of Activate Features:
 The Fuel Injector buttons activate the selected Fuel injector for a short time. Listen for the
presence of the injector activation, and that the tone is identical to the other injectors.
 The Ignition Coil buttons activate the selected Ignition Coil for a short time. It is best to
install a good spark plug in the selected coil and observe the spark is consistent with the
other coils
 Pressing the Fuel Pump button activates the fuel pump for a few seconds (useful for
checking fuel pressure)
 The Fully Open ISC Valve is useful for checking the operation of the ISC valve
Description of Cylinder Disable Feature:
The cylinder control Disable buttons shut off the fuel and ignition to the selected cylinder while the
engine is running. When engine is running, pressing the selected cylinder should cause the engine
to run roughly and slow down slightly. Each cylinder should affect the overall running by the same
relative amount.