Troubleshooting 2200 YRM 1067
Dash Display
Controller LED Handset or PC
AL8 8 Flashes POWER FAILURE #1
CONDITION
Short circuit in device connected to controller.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Overcurrent detected in driven component.
Check main harness for damaged or shorted con-
nections to main contactor, brake, and electric valve
coils.
Check main contactor, brake, and electric valve
coils for correct resistance values.
Check contactor coil for correct resistance of 22.0
ohms.
Check the brake coil for the correct resistance. Re-
sistance should be between 27.36 and 30.24 ohms.
Check the electric valve coils for correct resistance
of 15 to 20 ohms.
Value should be within ±10% at room temperature.
Refer to the section Electrical System 2200 YRM
1007 for more information on troubleshooting electrical
system circuits and components.
LOGIC
Occurs when controller
detects short circuit in component driven by controller.
Dash Display
Controller LED Handset or PC
AL10 LED ON (No Flashing) EEPROM KO
CONDITION
Fault in the
memory area where parameters are stored.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Controller damaged.
Cycle key switch OFF and ON.Iffaultremains,re-
place controller.
LOGIC
Occurs if controller
discovers fault in the area of memory
where parameters are stored.
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