Wiring harness / switch (F04) - Switch not detected or electronics not functioning

What does Wiring harness / switch (F04) mean?

This error signifies a problem with the wiring harness connection to a switch or an issue with the switch itself, leading to the electronics not functioning correctly or not detecting the switch.

• Loose or damaged wiring harness connection
• Defective switch
• Fault in the main electronic module

Click steps to track your progress.

1. 1

   Inspect the wiring harness and its connection to the switch for any signs of damage.

2. 2

   Test the switch to ensure it is operating as expected.

3. 3

   Verify that the electronic module is receiving power and functioning properly.

4. 4

   Refer to the specific flow chart for 'Wiring harness / switch' testing.