Case IH 522831-06 - PCM – PCM: HSD output-2 overcurrent

The control module has detected an electrical current draw on High Side Driver Output 2 that exceeds the maximum allowable threshold, typically caused by a short circuit or a faulty component drawing too much power.

• MAGNUM AFS Connect
• Steiger / Quadtrac AFS Connect
• Puma AFS Connect
• Optum
• 250-series Combines
• Patriot sprayers

1. 1

   Inspect the wiring harness connected to PCM HSD Output 2 for a short to ground or a short to power.

2. 2

   Test the connected component (sensor, valve, or antenna powered by HSD Output 2) to ensure it is functional and not internally shorted.

1. 1

   Repair wiring harness

   Locate any chafed or pinched wires on the Output 2 circuit and repair the harness to resolve short circuits.

2. 2

   Replace connected component

   Replace the end-component (valve, sensor, or antenna) if testing reveals it is internally shorted.

3. 3

   Replace PCM

   If the harness and components test good, the PCM itself may have a failed internal driver. Replace and reprogram the PCM.