P05BE

Symptoms

• The start-stop system does not work or is deactivated
• Check Engine Light Is On
• The start-stop system indicator does not flash when stopping
• Possible increase in fuel consumption in the urban cycle
• Warning message on the instrument panel indicating a system malfunction

Causes

• Broken or damaged wiring in the start-stop switch circuit
• Signal wire short circuit to ground
• Oxidation or poor contact in the switch connector
• Faulty start-stop switch
• ECU module malfunction (rare)

How to Fix

1. Connect the diagnostic scanner and read all associated error codes
2. Check the start-stop switch circuit diagram in the technical documentation
3. Inspect the wiring from the switch to the computer for breaks, chafing, or damage.
4. Check the switch connector: clean the contacts from oxidation, make sure there is a reliable connection
5. Measure the voltage and resistance in the switch circuit with a multimeter
6. Replace the start-stop switch if it is confirmed to be faulty

Related codes

Error P05BE by Vehicle Brand