X15 CM2350 X116B Fault Code: 1713 | SPN: 3363 | FMI: 16Aftertreatment 1 Diesel Exhaust Fluid Tank Heater – Data Valid But Above Normal Operating Range – Moderately Severe Level

Overview

Circuit Description

The aftertreatment diesel exhaust fluid tank heater keeps the diesel exhaust fluid from freezing in the diesel exhaust fluid tank. The tank heater consists of an electrically powered tank heater control valve which controls the flow of engine coolant to a heating coil inside the diesel exhaust fluid tank. The tank heater control valve opens to allow coolant to flow to the heating coil when heating is commanded, and closes when heating is no longer required.

Component Location

The diesel exhaust fluid tank heater control valve is located near the diesel exhaust fluid tank. Specific location will vary depending on the OEM. The tank heating coil is internal to the diesel exhaust fluid tank.

Conditions for Running the Diagnostics

This diagnostic runs continuously when diesel exhaust fluid tank heating is NOT being commanded.

Conditions for Setting the Fault Codes

The Engine Control Module (ECM) detected the DEF tank temperature was greater than a calibrated temperature, indicating the aftertreatment diesel exhaust fluid tank heater control valve was in the ON position when the ECM was commanding the valve to be in the OFF position.

Action Taken When the Fault Code is Active

• The ECM illuminates the amber CHECK ENGINE lamp and/or malfunction indicator lamp (MIL) after the diagnostic fails on two consecutive trips.
• Diesel exhaust fluid injection into the aftertreatment system is disabled.

Engine torque will be reduced if the engine is operated for an extended period of time with this fault active.

Conditions for Clearing the Fault Code

• To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
• The fault code status displayed by the recommended Cummins electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes.
• The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.
• For On-Board Diagnostics (OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (MIL) after three consecutive trips where the diagnostic runs and passes.
• The “Reset All Faults” command in the recommended Cummins electronic service tool or equivalent can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.

Shop Talk

Before troubleshooting this fault code, make sure the equipment is not equipped with an auxiliary heating device for the diesel exhaust fluid tank. Such a device can result in overheating the diesel exhaust fluid in the tank.

This fault code may be inactive when the vehicle is brought in for service. Even if inactive, follow the troubleshooting tree completely.

Possible causes of this fault code include:

Aftertreatment diesel exhaust fluid tank heater control valve installed incorrectly, reversed relative to coolant flow direction.

Malfunctioning aftertreatment diesel exhaust fluid tank heater control valve stuck open or leakage past the valve seat.

Reference the appropriate OEM wiring diagram when troubleshooting circuits that utilize wiring supplied by the OEM.

For intermittent power supply and datalink communication issues with Aftertreatment Components, it is highly recommended that the OEM Power Distribution Center fuses and relays be thoroughly checked for loose, missing or intermittent connections.