New Holland 3720: Lambda Sensor: Low Battery Voltage at the SPI Chip

The Lambda sensor is experiencing low battery voltage at the SPI chip, which may affect its proper operation. This condition could lead to inaccurate sensor readings or communication issues.

1. 1

   The power supply to the Lambda sensor

2. 2

   Connections and wiring to the SPI chip

3. 3

   The battery voltage level in the system

1. 1

   Check the power supply to the Lambda sensor

   Verify that the Lambda sensor is receiving the correct voltage as specified in the service manual.

2. 2

   Inspect the wiring and connections

   Examine the wiring and connections between the Lambda sensor and the SPI chip for any damage, corrosion, or loose contacts.

3. 3

   Measure the battery voltage

   Confirm that the battery voltage is within the acceptable range for the system.