John Deere 4360.07 – Engine Control Unit (ECU): SCR Inlet Temperature Fault / SCR Inlet Temperature Invalid

The Selective Catalytic Reduction (SCR) temperature module has detected a problem with measuring the exhaust temperature at the inlet of the SCR canister. Accurate temperature measurement here is critical, as the Engine Control Unit uses this data to determine if the exhaust is hot enough for Diesel Exhaust Fluid (DEF) injection to occur and to ensure proper catalyst reaction.

• 5085E
• 5090E
• 5090EL
• 5100E
• 5090M
• 5100M
• 5100MH
• 5100ML
• 5115M
• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6105M
• 8R/RW Series (8245R to 8400R)
• 9RT Series (9470RT, 9520RT, 9570RT)
• 5G Series (5075G, 5090G, 5105G)
• 210G Excavator
• 210GLC Excavator

1. 1

   Check for Related Codes: Connect a diagnostic tool (such as John Deere Service ADVISOR) and check for accompanying communication codes. For example, ECU 005743.09 indicates that data cannot be received from the SCR Temperature Module, which would point to a module or CAN bus failure rather than the sensor itself.

2. 2

   Visual Inspection: Inspect the wiring harness and connectors running between the ECU, the SCR Temperature Module, and the SCR Inlet Temperature Sensor for chafing, corrosion, or loose pins.

3. 3

   Sensor Data Verification: Use the diagnostic tool to monitor live data from the SCR inlet temperature sensor. Compare it against the SCR outlet temperature sensor. If the inlet sensor reading is erratic, stuck, or completely drops out, the sensor probe is likely faulty.

4. 4

   Physical Inspection: Remove the sensor probe and inspect it for heavy soot packing or physical damage.

1. 1

   Cool down exhaust system

   Ensure the machine is turned off and the exhaust system/SCR canister has completely cooled down to prevent severe burns.

2. 2

   Locate sensor

   Locate the SCR Inlet Temperature Sensor, which is mounted at the inlet of the SCR canister/exhaust filter.

3. 3

   Disconnect sensor

   Disconnect the electrical connector from the sensor.

4. 4

   Remove sensor

   Carefully unscrew and remove the faulty sensor probe from the exhaust filter.

5. 5

   Apply anti-seize

   Apply an anti-seize compound (such as NEVER-SEEZ) to the threads of the new sensor probe prior to installation.

6. 6

   Install new sensor

   Thread the new sensor into the exhaust filter and tighten it to the OEM specification (John Deere CTM114619 specifies 35 N·m or 26 lb.-ft. for the exhaust filter temperature sensors).

7. 7

   Reconnect sensor

   Reconnect the electrical connector.

8. 8

   Verify repair

   Connect your diagnostic tool, clear the stored ECU 004360.07 fault code, and run the engine to verify that the sensor is reading correctly and the code does not return.