BMW 5 Series Owners & Service Manuals

BMW 5 Series: Power supply terminals

Control units in the vehicle must be supplied with power only when they are needed. The following terminals are used in the G30:

  • Terminal 15N
  • Terminal 30B
  • Terminal 30F
  • Terminal 30

Terminal 15N supplies control units which are needed only when driving and which may be needed to safely end a journey. After-run of 5 s starts at the transition from DRIVING to RESIDING.

Terminal 30B is used to supply control units that are needed in the stationary mode RESIDING and for stationary functions where the customer is not in the vehicle. An after-run of 6 minutes starts at the transition from RESIDING to PARKING, and terminal 30B is then switched off.

Terminal 30F is used to supply control units which must perform functions in PARKING condition.

Terminal 30F is normally switched on in PARKING condition, but may be switched off due to faults in the vehicle electrical system. The terminal is switched off with an after-running period of 1 min if a fault is detected.

Terminal 30 control units (e.g. alarm system) are always supplied with voltage and are also not switched off in the event of a fault.

Power supply terminals

Programming-analysis-diagnosis (PAD) mode

The vehicle condition programming-analysis-diagnosis is still present for diagnosis. All terminals are switched on in this mode. This ensures that diagnosis can be performed with all control units. This vehicle condition is displayed in the BMW diagnosis system ISTA.

Activation of the PAD mode:

  • Operation of the start/stop button (three times within 0.8 s) + valid remote control or valid ID transmitter in the vehicle interior.
  • By the BMW diagnosis system ISTA.

The PAD mode is exited by pressing the start/stop button or by closing the diagnosis with the BMW diagnosis system ISTA.

    READ NEXT:

     Partial network operation

    Today's premium vehicles contain up to 70 control units with well over 100 micro-controllers which are networked with each other. However, depending on the current vehicle condition or the vehicle u

     Chassis and Suspension

     Introduction

    SEE MORE:

     Stratification

    On the G30 the stratification for the driver/front passenger is not adjusted in the usual manner by the knurled wheels on the front dash panel. Instead, there is a menu button located in the center of the IHKA control panel. Pressing this button opens the IHKA menu in the CID. Once the menu is di

     Introduction

    The hidden protector The passive safety system of the G30 is based on the objectives and characteristics of current BMW models. The passive safety system fulfils all legislative requirements worldwide. The restraint systems ensure that the risk of injury is reduced. The 5th generation Advanced C

    © 2019-2025 Copyright www.bmw5g30.com