Case IH 2875-14 - BCM – BCM: Hazard Light Switch

The control module is receiving a voltage reading from the switch that does not match the expected parameters for either the "ON" or "OFF" position.

• MAGNUM AFS Connect
• CX Series
• CX50
• CX60
• CX70
• CX80
• CX90
• CX100
• MX Series
• MX80C
• MX90C
• MX100
• MX110
• MX120
• MX135
• MX150
• MX170
• JX Series
• JXU Series
• JX55
• JX60
• JX70
• JX80
• JX90
• JX95
• JX100U
• JX1070U
• JX1080U
• JX1090U
• JX1100U
• Puma Series
• Puma 210

1. 1

   Inspect the physical hazard rocker switch on the console for sticking, physical damage, or liquid intrusion.

2. 2

   Verify that the BCM power supply fuses and fusible links are not blown.

3. 3

   Disconnect the hazard switch and measure the voltage at the vehicle harness side to check for a short to 12 volts (battery voltage), a short to ground, or an open circuit in the wiring between the switch and the BCM.

4. 4

   If the wiring and fuses are intact, use a diagnostic tool to check the parameter set of the sensor and verify if the BCM is properly receiving and sending data.

1. 1

   Disconnect Power

   Turn off the ignition and disconnect the tractor's battery to prevent electrical shorts.

2. 2

   Access the Switch

   Carefully pry or remove the dashboard/console trim panel housing the hazard light switch.

3. 3

   Disconnect Harness

   Unplug the electrical connector (often a 7-pin, 8-pin, or 9-pin spade terminal connector depending on the model) from the back of the hazard switch.

4. 4

   Remove the Switch

   Push the retaining clips on the sides of the switch to pop it out of its mounting hole (many are a standard 22 x 44mm or 22 x 45mm push-fit rocker switch).

5. 5

   Install the New Part

   Snap the new OEM hazard switch into the console panel and reconnect the wiring harness.

6. 6

   Reassembly and Testing

   Reinstall the trim panel, reconnect the battery, and test the hazard lights for proper operation. Clear the 2875-14 fault code from the BCM using a diagnostic tool.