Automatic transmission electronic control system diagram (with ECU Sirius D4) (start): 1 - relay and fuse box in the engine compartment; 2 - fuse box in the passenger compartment; 3 — selector position sensor; 4 - instrument cluster; 5 — automatic transmission control unit; 6 — ECU; 7 - Reversing light bulb in the left rear light; 8 - Reversing light bulb in the right rear light
* sedan
** hatchback
Automatic transmission electronic control system diagram (with ECU Sirius D4) (continuation): 1 - relay and fuse box in the engine compartment; 2 - fuse box in the passenger compartment; 3 — electromagnetic valve of the selector locking mechanism; 4 - brake light switch; 5 — selector position sensor "P"; 6 — automatic transmission control unit; 7 — primary shaft speed sensor; 8 — valve mechanism of automatic transmission
Automatic transmission electronic control system diagram (with ECU Sirius D4) (end): 1 - fuse box in the passenger compartment; 2 - relay and fuse box in the engine compartment; 3 - instrument cluster; 4 - speedometer; 5 — "HOLD" mode activation indicator; 6 — instrument cluster control unit; 7 — automatic transmission control unit; 8 — diagnostic connector; 9 — "HOLD" mode switch; 10 - vehicle speed sensor
The article is based on data from the website «ChevyMan»