CANplus
TM
CP800
Control Panel Operation Manual
41
9M02-1000-A201-EN
Revision E
Control system performs normal self-test, engine cranks, runs and shuts down
Possible Cause
Possible Remedy
Engine Stop LED illuminated
Correct ECU stop condition, use ECU diagnostics
Display does not display data
Possible Cause
Possible Remedy
Display lost power
Turn on key, verify display plugged into harness
Engine Source address incorrect
Change Engine Address in Configuration
Display Address incorrect
Change Display Address to 40 (default)
Display configuration problem
Reset display using Restore Defaults
CAN failure
ECU not sending data
Repair or replace ECU
Display shows Bad Device
Possible Cause
Possible Remedy
Configuration file does not match
firmware version
Reload configuration file from the config program with matching version
10.4.1 Testing a Warning or Shutdown
Shutdown simulation with ECU controlled engines requires using the ECU diagnostic tool. Refer to the diagnostic
tool documentation to simulate a warning or shutdown.
10.4.2 Testing CAN
Most information provided to the CANplus
TM
display is sent by the ECU via the CAN bus. CAN is an international
data bus used to support SAE J1939. If this connection is broken or improperly terminated, the CANplus
TM
display cannot show ECU parameters such as engine hours, oil pressure and diagnostic codes. The following
test procedure helps identify the problem location:
1.
Disconnect the battery.
2.
Identify the engine diagnostic plug. Connect an ohmmeter across the CAN pins of the diagnostic plug.
3.
A reading of 60±5
Ω indicates both ends of the bus are correctly terminated and the bus is intact.
4.
A reading of 120±10
Ω indicates
only one end of the bus is terminated.
Note:
The CP800 has switchable termination via software. Please see the CAN bus settings in the
Tech menus for more information.
An ohmmeter reading of around 120
Ω indicates the bus to the terminator in the panel is complete and
the problem is between the panel and the engine terminator.
An open circuit ohmmeter reading indicates the bus to the engine terminator is complete and the
problem is between the panel and the diagnostic plug.
