2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 302
Fault description
Brake Switch 'B' Circuit
Condition for fault identification
Test condition:
Brake light switch monitor
Depress brake pedal repeatedly
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
If the BLS is still OK, the fault will be stored immediately
as soon as the brake pedal is depressed. If the plug is
disconnected the BLS fault will be registered after
approximately 40 sec.
Action in service
1. Check to determine whether foreign matter or objects
(dirt) are causing the switch to hang.
2. Electrical check on wire
a. --> If not OK, repair wire.
b. --> If OK, replace switch.
3. Check by depresssing the brake pedal repeatedly. No fault
should be stored.
Fault effect and breakdown warning
Driver information
Warning light:
If the switch is defective the cruise control or ACC will be
deactivated.
Display:
- Defective speed control or distance control failure
Service instruction
none
2F67 - P0831 (DME)
2F67 - P0831
Information saved in
DME
Fault code
2F67 - P0831
Fault text
Clutch switch, signal
Fault description
Clutch Pedal Switch 'A' Circuit Low
Condition for fault identification
Test condition:
none
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
none
Action in service
none
Fault effect and breakdown warning
