PEDAL 3817075 - Caterpillar

Table 1
Diagnostic Codes for the Solenoid Valves
J1939 Code and Description Pre-Conditions for Code Comments
3363-3
Aftertreatment #1 DEF Tank Heater : Voltage Above Normal - Battery voltage is normal
- Key switch signal (ECU: V13 & V33, ACU: 18 terminal) is continuously activated more than 2 sec
- Starter Switch signal (ECU: V12 terminal) is not activated except within 2 sec after starter stopped
- CAN communication is normal between ACU and engine ECU
- Diagnosis has not completed during 160 msec after ACU power on When the High-side switch is off, the coolant valve terminal monitoring voltage (*1) is 1.937 V or more (only just after the ACU power turns on) for at least 80 msec.
Stop coolant valve
3363-4
Aftertreatment #1 DEF Tank Heater : Voltage Below Normal When the High-side switch is on, the coolant valve terminal monitoring voltage (*1) is 0.503 V or less. (only just after the ACU power turns on) for at least 80 msec
Stop Coolant valve
3363-5
Aftertreatment #1 DEF Tank Heater : Current Below Normal When the High-side switch is on, the coolant valve terminal monitoring voltage (*1) is 0.503 V or more and 1.937 V or less. (only just after the ACU power turns on) for at least 80 msec
Stop coolant valve