Damage Code For Electrical Components (54.18/239)

DAMAGE CODE FOR ELECTRICAL COMPONENTS

TECHNICAL SERVICE BULLETIN

SUBJECT

MY-All, All Models 

Damage Code for Electrical Components 

Electrical and electronic components have increased dramatically. To encode more accurately, electrical lines must be replaced by couplings and feed lines. Four fault locations are explained below with one being newly added.

ABBREVIATIONS

K/Z* is the coupling and feed line for an electrical component; that is, electrical connection of control units, consumers, and sensors. It is represented by symbol W.

K/H* is the coupling and high-voltage line for a hybrid or F-Cell; that is, the connection between the power electronic and the integrated starter alternator. It is represented by symbol X.

K/L* is the coupling and the optical fiber; that is, the connection between COMAND and the instrument cluster.

ESV stands for electronic connector; that is, the door connector between the door wiring harness and the interior wiring harness. It is represented by symbol Z.

Fig. 1

Fig. 2

Fault locations with the abbreviations: K/Z*, K/H*, and K/L include the network of components illustrated in (Fig. 2).

Faults caused by the electrical component slot (1,1) (Fig. 2) (components A), are not part of K/Z*, K/H*, and K/L*. They are encoded with components (1, 2); that is, the control unit, sensor, or actuator.

Fig. 3

The fault locations with the abbreviation ESV include a network of components A, B, and C (Fig. 3). Issues occurring in components D (Fig. 3) are not part of ESV.

Fig. 4

The K/Z* number (Fig. 4) corresponds to the number of connectors. There is no need for separation to the left and right.