Case IH 2275 (518704.19) - DEC – DEC: CAN 2 - LeftBrakeSts Error

The code indicates a network communication error on CAN Bus 2 specifically related to the Left Brake Status (LeftBrakeSts). The control module is receiving invalid data, missing data, or incorrectly formatted data packets over CAN Bus 2 regarding the position or status of the left brake pedal.

• MAXXUM T4E
• VESTRUM CVX
• Puma
• Maxxum
• Magnum
• Steiger

1. 1

   Verify the Code: Check if the code is active or stored. If stored, clear it and press the left brake pedal to see if it returns.

2. 2

   Check Sensor Connection: Inspect the presence and correct connection of the left brake switch/sensor to the network.

3. 3

   Inspect Wiring: Check the wiring harness between the left brake pedal sensor and the main cab harness for chafing, corrosion, or pin damage.

4. 4

   CAN Bus Testing: Check the correct functioning of the CAN 2 controller and its voltage supply. Measure the resistance across the CAN 2 High and CAN 2 Low pins (should typically be 60 ohms if the network is intact).

1. 1

   Disconnect battery

   Disconnect the battery to ensure safety while working on the electrical system.

2. 2

   Locate sensor

   Locate the left brake status switch/sensor at the base of the left brake pedal assembly.

3. 3

   Clean contacts

   Disconnect the sensor connector and clean the contacts with electrical contact cleaner.

4. 4

   Repair wiring

   If the wiring harness shows visible damage, repair the broken/chafed wires and apply heat shrink.

5. 5

   Replace sensor

   If the wiring and CAN network test normal, replace the left brake status switch/sensor.

6. 6

   Clear fault code

   Reconnect the battery, turn the key to the ON position, and use a diagnostic tool to clear the fault code.

7. 7

   Test pedal

   Test the left brake pedal to ensure the code does not return and the brake lights/transmission disconnect operate correctly.