The Tyre Calculator and Packing List files are Excel spreadsheets. They will ask if you want to save them or just open them. You will need Microsoft Excel spreadsheet to open them. Some drawings have more pages. Click Page Down to view them.
Main Drawing
GM 4L80E TCU Drawing
Default Harnesses
OT01 – P1 Input Harness (ECU Connections)
OT03 V2 – P2 Input Harness
E36 V2 – P3 Output Harness
OT20 – Comms Buttons Harness
Other Harness Options
OT02 – P1 Input Harness (Stand Alone System)
E31 V2 – P2 Output Harness
Diode Board.
DB1 Positive Diode Board
Shifter Converter Board
CON1 Parallel A/D Converter
GP Priority Layout
GM 4L80E 4Speed Connection Layout
Hardware Classes
GM 4L80E
Tyre Calculator
Tyre Calculator GM 4L80E (Excel)
Old Harness Layout
This is not recommended for Orion but merely for backwards compatibility explanations. Some are discontinued.
| P1 – Input Harness | P2 – Output Harness | P3 – Input / Coms Harness |
|---|---|---|
| E28 Input Harness | E21 Output Harness | P03-P3 Harness |
| E29 Input Harness | E23 Output Harness | P05-P3 Harness |
| E34 Input Harness | E23 V2 Output Harness | |
| E35 Input Harness | E26 Output Harness | |
| E27 Output Harness | ||
| E27 V2 output Harness | ||
| E31 Output Harness | ||
| E32 Output Harness | ||
| E33 Output Harness |
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