Case IH 276 – Engine Controller (ENG): Injection Control Valve current is out of range

Open or short circuit in the electrical circuit controlling the fuel injection control valve.

• MX Magnum
• STX Steiger
• MX Series
• MX240
• MX255
• MX270
• MX285
• TG Series
• Steiger Series
• STX275
• STX325
• Magnum
• Puma

1. 1

   Use a DVOM (Digital Volt-Ohm Meter) to test the electrical circuit

2. 2

   Check the wiring harness specifically at engine controller pin A7 for an open or short circuit

3. 3

   Inspect the wiring and connectors running from the engine controller to the Injection Control Valve for damage, corrosion, or loose connections

1. 1

   Disconnect battery and locate components

   Disconnect the battery and locate the Engine Controller and the Injection Control Valve.

2. 2

   Inspect and test wiring harness

   Inspect and test the wiring harness between engine controller pin A7 and the valve.

3. 3

   Repair wiring or replace connectors

   Repair any open or shorted wires, or replace damaged connectors found during the diagnostic phase.

4. 4

   Replace Injection Control Valve

   If the wiring tests good, the Injection Control Valve itself has likely failed (often triggering a related code 277: "Injection Control Valve is failed") and must be replaced.

5. 5

   Replace valve or rebuild CAPS pump

   For tractors equipped with the 8.3L engine and a CAPS (Cummins Accumulator Pump System) fuel pump, replacing the valve or rebuilding the CAPS pump may be necessary if low fuel pressure issues persist.

6. 6

   Clear error codes

   After replacing the faulty wiring or valve, clear the error codes from the system.