DESCRIPTION If there is no answer-back of the hazard light signal and the wireless door lock buzzer although the wireless control function is operating normally, there might be a malfunction in the hazard light signal and the wireless door lock buzzer signal which are output from the multiplex network body ECU.
NOTICE: Troubleshooting should be started after confirming that the answer-back function has been switched ON through customization.
WIRING DIAGRAM
INSPECTION PROCEDURE
When using intelligent tester:
1 CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
HINT: When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the multiplex network body ECU
Result
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
BODY:
Result
3 CHECK HAZARD WARNING LIGHTS
REPLACE MULTIPLEX NETWORK BODY ECU
4 INSPECT WIRELESS DOOR LOCK BUZZER
NOTICE:
Standard
5 CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MULTIPLEX NETWORK BODY ECU)
Standard resistance
REPLACE MULTIPLEX NETWORK BODY ECU
When not using intelligent tester:
1 CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
HINT: When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the multiplex network body ECU
Result
2 CHECK HAZARD WARNING LIGHTS
REPLACE MULTIPLEX NETWORK BODY ECU
3 INSPECT WIRELESS DOOR LOCK BUZZER
NOTICE:
Standard resistance
4 CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MULTIPLEX NETWORK BODY ECU)
Standard resistance
REPLACE MULTIPLEX NETWORK BODY ECU
Precaution
CAUTION:
The vehicle is equipped with a Supplemental Restraint
System (SRS). It consists of a driver airbag, front
passenger airbag, front seat side airbag, curtain shield
airbag, and front seat belt pretensioner. Failure to
carry out service operations in the correct sequence
co ...
Vehicle care
Vehicle care products
General information
BMW recommends using vehicle care and
cleaning products from BMW. Suitable care
products are available from a dealer's service
center or another qualified service center or repair
shop.
Safety information
Warning
Cleansers can contain substances that are da ...
Insufficient Coolant Temperature for Closed
Loop Fuel Control
DTC P0125 Insufficient Coolant Temperature for Closed
Loop Fuel Control
DESCRIPTION
Refer to DTC P0115
DTC No.
DTC Detection Condition
Trouble Area
P0125
Engine coolant temperature (ECT) does not reach
closed-loop enabling temperature for 20 minutes (t ...