Porsche 928 Electrics
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(FIGURES NUMBERED >35 ARE ONLY AVAILABLE IN THE MAIN 928-ELECTRICS DOCUMENT)
Wiring Diagram (WD) Grid:.......................................................... 5Wire Color & Size Conventions: .................................................... 6Wire Connection Conventions:...................................................... 6Central Electric Wire Connections on Wiring Diagram (WD) Sheets: ... 6Connection at Pin 1 Plug Connector T33: ....................................... 7Connections Wires at Wire Connector, Connecting & Ground Points: .. 7Physical Location Aid: (see Construction Components Sheet):........... 8Ground Points Locator:................................................................ 9Further detail on ground point locations (for S4 models) .................. 9Inter-Sheet Connection Tags: .....................................................10Wiring Loom & Connector Grouping Conventions: ..........................11Plug Connections Sheet Data: (Example from ’93 WD): ..................12
Plug Socket Connectors & Partial Connectors:
Simple Generic Switch Symbol Examples: .....................................14Porsche Switch Examples: ..........................................................14Switch Example Not Individually Driver Operable: ..........................14Directly Driver Operated Switch Examples: ..................................14Typical SPST Relay: ...................................................................15Stand Alone Motor Symbol Example:............................................15Motor Systems Examples: ..........................................................15Electronic Module With Unlabeled Wire Tail Connector: ...................17Examples of Porsche Compound Module Representations: ..............18Central Electric (CE) Panel - Physical Representation: .....................19Central Electric (CE) Panel Photo (‘94 GTS):..................................20Location of Fuse Numbers: .........................................................20Relay Identification Labels: .........................................................21CE Plug/Socket Physical Coding Slot Configurations:.......................21Multiple Wires to CE Connector Plug Pins: .....................................23Single CE Plug Connector CE Sheet Representation: .......................23Basic Connectivity – (CE to WD Sheets): ......................................24Local Intra-Connector Bridging on CE Sheet Connectors:.................25Fuse Connectivity to CE Plug Connections: ....................................26Fuse Block Internal Gang Connections ..........................................26Relay Connectivity to CE Plug Connections:...................................27CE Plug Connector Internal Connections to Other Plugs:..................27Generic Electrical Symbol for SPST Switch: ...................................44The Basic ‘Dr Frankenstein’ SPST Switch: .....................................44
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