GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2008
🢒
CTS
🢒
Engine
🢒
Engine Controls and Fuel - 2.8L, 3.0L, 3.2L, or 3.6L
🢒 Engine Controls Schematics
Figure
1:
Module Power, Ground, Serial Data and MIL
Master Electrical Component List
Engine Control Module Description
Control Module References
5-Volt and Low Reference - 1 of 2
Figure
2:
5-Volt and Low Reference (1 of 2)
Master Electrical Component List
Engine Control Module Description
Control Module References
5-Volt and Low Reference - 2 of 2
Module Power, Ground, Serial Data and MIL
Figure
3:
5-Volt and Low Reference (2 of 2)
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Pressure, Temperature, and Throttle Controls
5-Volt and Low Reference - 1 of 2
Figure
4:
Engine Data Sensors - Pressure, Temperature, and Throttle Controls
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - HO2S
5-Volt and Low Reference - 2 of 2
Figure
5:
Engine Data Sensors - HO2S
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 1, 3, and 5 - LLT
Engine Data Sensors - Pressure, Temperature, and Throttle Controls
Figure
6:
Ignition Controls - Ignition System Coils 1, 3, and 5 (LLT)
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 1, 3, and 5 - LP1/LY7
Engine Data Sensors - HO2S
Figure
7:
Ignition Controls - Ignition System Coils 1, 3, and 5 (LP1/LY7)
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 2, 4, and 6 - LLT
Ignition Controls - Ignition System Coils 1, 3, and 5 - LLT
Figure
8:
Ignition Controls - Ignition System Coils 2, 4, and 6 (LLT)
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 2, 4, and 6 - LP1/LY7
Ignition Controls - Ignition System Coils 1, 3, and 5 - LP1/LY7
Figure
9:
Ignition Controls - Ignition System Coils 2, 4, and 6 (LP1/LY7)
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - Fuel Injectors, Pressure and Fuel Pump Controls - LLT
Ignition Controls - Ignition System Coils 2, 4, and 6 - LLT
Figure
10:
Ignition Controls - Sensors
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - Fuel Injectors, Pressure and Fuel Pump Controls - LLT
Ignition Controls - Ignition System Coils 2, 4, and 6 - LP1/LY7
Figure
11:
Fuel Controls - Fuel Injectors, Pressure and Fuel Pump Controls (LLT)
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - Fuel Injectors and Fuel Pump Controls - LP1/LY7
Ignition Controls - Sensors
Figure
12:
Fuel Controls - Fuel Injectors, Pressure and Fuel Pump Controls (LP1/LY7)
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls and Manifold Tuning
Fuel Controls - Fuel Injectors, Pressure and Fuel Pump Controls - LLT
Figure
13:
Fuel Controls - EVAP Controls and Manifold Tuning
Master Electrical Component List
Engine Control Module Description
Control Module References
Monitored/Controlled Subsystem References
Fuel Controls - Fuel Injectors and Fuel Pump Controls - LP1/LY7
Figure
14:
Monitored/Controlled Subsystem References
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls and Manifold Tuning