Case IH 19679 – DCU (Dosing Control Unit): Ambient Temperature: SAE J1939 Check for CAN receive signal (Barometric pressure not in range) | P0071 Ambient Air Temperature Sensor Range/Performance

The module is receiving an erratic, out-of-range, or missing ambient temperature/barometric pressure signal over the SAE J1939 CAN bus network.

• Tier 4a
• Case IH Magnum 235 – 340 (Series 4)
• Case IH Steiger 350 – 600

1. 1

   Check the wiring harness and connector at the Ambient Air Temperature Sensor for corrosion or pushed-out pins.

2. 2

   Verify CAN bus continuity (J1939) between the sensor node and the DCU.