ARC - Armrest Control Unit Diagnostic Trouble Codes

ARC - Armrest Control Unit Diagnostic Trouble Codes
Control Unit SPN FMI Pri. Indicator Light Description Effect
ARC 158 00 2   Battery Voltage High indicates that the system battery voltage input to the armrest control unit is above 16 volts. Control Unit driver shutdown, Control unit outputs are not available.
ARC 158 01 2   Battery Voltage Low indicates that the system battery voltage input to the armrest control unit is below 10.5 volts. Control Unit driver shutdown, Control unit outputs are not available.
ARC 170 03   Air temperature control Cab Temperature Sensor High indicates that the ATC mode is on AND cab temperature sensor voltage input is above 4.8 volts. The outlet temperature sensor reading is used to determine the cab temperature. The system response is unpredictable.
ARC 170 04   Air temperature control Cab Temperature Sensor Low indicates that the ATC mode is on AND the cab temperature sensor voltage input is below 0.1 volts. The outlet temperature sensor reading is used to determine the cab temperature. The system response is unpredictable.
ARC 172 03   Air temperature control Inlet (Ambient) Temperature Sensor High indicates that the ATC mode is on AND the inlet (ambient) temperature sensor voltage input is above 4.8 volts. The setting of temperature set point potentiometer is used in lieu of the ambient temperature. The system response is unpredictable, although this will have a minimum impact.
ARC 172 04   Air temperature control Inlet (Ambient) Temperature Sensor Low indicates that the ATC mode is on AND the inlet (ambient) temperature sensor voltage input is below 0.1 volts. The setting of temperature set point potentiometer is used in lieu of the ambient temperature. The system response is unpredictable, although this will have a minimum impact.
ARC 190 09 2   Engine Speed / Engine CAN Failure indicates that the armrest control unit has not received an engine speed CAN message from the engine control unit during the last 0.5 seconds. In case of losing communication, low idle is required from the engine as request from the armrest control unit.
ARC 605 04 2 Air temperature control High Pressure Switch indicates that ATC switch is on, the low pressure switch input is 12 volts AND CAN bus message indicates that high pressure switch voltage is 0 volts. Problem with the refrigerant charge or the air conditioning system.
ARC 628 12 2   Program Memory Failure indicates that control unit boot block detects that the application software is not executing (generated by the boot block). Control unit functions not available.

 

OUZXMAY,00005BC -19-13OCT02-1/4

ARC - Armrest Control Unit Diagnostic Trouble Codes
Control Unit SPN FMI Pri. Indicator Light Description Effect
ARC 875 04 2 Air temperature control Refrigerant Low Pressure Switch indicates that ATC switch is on, the AC clutch control unit is switched on AND low pressure switch input is 0 volts. Problem with the refrigerant charge or the air conditioning system.
ARC 875 14 2 Air temperature control Refrigerant Low Pressure Switch indicates that AC clutch control is switched on AND low pressure switch input is 0 volts. Control unit function not available.
ARC 919 03   Air temperature control Solar Sensor High indicates that ATC switch is on AND solar sensor voltage input is above 4.9 volts. Logic assumes the cab is in bright sunlight when disconnected, which increases the fan speed by approximately 10 %.
ARC 919 04   Air temperature control Solar Sensor Low indicates that ATC switch is on AND solar sensor voltage input is below 0.5 volts. Logic assumes complete darkness in cab, which has no effect on the fan speed.
ARC 1503 11 2   Armrest Matrix Switch indicates that there is a problem with the armrest matrix switch panel. A key may be stuck or other problems exist within the armrest matrix switch. One or probably several switches on the armrest don't work correctly.
ARC 1544 04 2   Multi-Function Lever Matrix Switch indicates that there is a problem with the matrix switch in the multi function lever. A key may be stuck or other problems exist within the multi function lever matrix switch. One or probably several switches on the multi function lever don't work correctly.
ARC 1544 11     Multi-Function Lever Matrix Switch indicates that there is a problem with the matrix switch in the multi-function lever. A key may be stuck or another problem exists within the multi-function lever matrix switch. One or probably several switches on the multi function lever don't work correctly.
ARC 1546 03     Water Valve Drive High indicates that the ATC switch is on AND the voltage exceeds the battery voltage.  
ARC 1546 04     Water Valve Drive Low indicates that the ATC switch is on AND the voltage drops below 0.5 V.  
ARC 1547 03 2 Air temperature control Evaporator Core Temperature Sensor High indicates that ATC switch is on AND evaporator core temperature sensor voltage input is above 4.75 volts. Duct temperature is used instead, evaporator may be damaged.

 

OUZXMAY,00005BC -19-13OCT02-2/4

ARC - Armrest Control Unit Diagnostic Trouble Codes
Control Unit SPN FMI Pri. Indicator Light Description Effect
ARC 1547 04 2 Air temperature control Evaporator Core Temperature Sensor Low indicates that ATC switch is on AND evaporator core temperature sensor voltage input is below 0.1 volts. Duct temperature is used instead, evaporator may be damaged.
ARC 1548 03   Air temperature control Outlet Temperature Sensor High indicates that ATC switch is on AND outlet temperature sensor voltage input is above 4.8 volts The setting of temperature set point potentiometer is used in lieu of the duct temperature. The system response is unpredictable, although this will have a minimum impact.
ARC 1548 04   Air temperature control Outlet Temperature Sensor Low indicates that ATC switch is on AND outlet temperature sensor voltage input is below 0.1 volts. The setting of temperature set point potentiometer is used in lieu of the duct temperature. The system response is unpredictable, although this will have a minimum impact.
ARC 1549 07   Air temperature control Water Valve Drive indicates that ATC switch is on AND the water valve position differs more than 30 % from the command position. ATC continues to function as per normal operation.
ARC 1551 11   Air temperature control Pressurizer Blower Motor Drive Failure indicates that ATC switch is on AND the status of the pressurizer drive indicates there is a problem to engage the pressurizer blower motor.  
ARC 1566 14 2   Data Input Control Knob Failure indicates that the data input control knob has detected transitions on one of its inputs but has not detected transitions on the other input. Probably data input control knob does not work correctly.
ARC 300200 03     CAN High Shorted (to Transfer from ARC to RCP)  
ARC 300200 04     CAN High Shorted (to Transfer from ARC to RCP)  
ARC 300201 03     CAN Low Shorted (to Transfer from ARC to RCP)  
ARC 300201 04     CAN Low Shorted (to Transfer from ARC to RCP)  
ARC 300202 03   Row guidance Row Guidance Potentiometer High indicates that the row guidance is enabled AND the voltage returned by the potentiomenter is above 4.5 volts. Row guidance still available, but row guidance potentiometer cannot be used during auto steering for manual steering adjust.
ARC 300202 04   Row guidance Row Guidance Potentiometer Low indicates that the row guidance is enabled AND the voltage returned by the potentiomenter is below 0.5 volts. Row guidance still available, but row guidance potentiometer cannot be used during auto steering for manual steering adjust.

 

OUZXMAY,00005BC -19-13OCT02-3/4

ARC - Armrest Control Unit Diagnostic Trouble Codes
Control Unit SPN FMI Pri. Indicator Light Description Effect
ARC 300202 13 3 Row guidance Row Guidance Potentiometer Not Calibrated indicates that the row guidance is enabled AND that the EEPROM is not calibrated OR potentiometer value is out of max. / min. value. Row guidance still available, but row guidance potentiometer not working.
ARC 300203 03 2   Quick Stop Failure Short too High the comparison of local discrete input with other 2 CAN messages indicates that the CAN messages indicate a low and the input a high.  
ARC 300203 04 2   Quick Stop Failure Short too Low the comparison of local discrete input with other 2 CAN messages indicates that the CAN messages indicate a high and the input a low.  

 

OUZXMAY,00005BC -19-13OCT02-4/4