GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2006
🢒
CTS
🢒
Body
🢒
Instrument Panel, Gages, and Console
🢒 Engine Controls Schematics
Figure
1:
Power, Ground, Serial Data, DIC, and Indicator
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - 5-Volt and Low Reference Busses
Underhood Fuse Block B+ Bus - 2 of 2
Engine Controls Schematic Icons
Class 2 Serial Data Bus (LHD) - 2 of 2
G140, G141, and G142 (LS2)
Class 2 Serial Data Bus (LHD) - 1 of 2
Class 2 Serial Data Bus (LHD) - 1 of 2
Ignition Switch - 2 of 2
Ignition Switch - 2 of 2
Engine Data Sensors - Throttle Actuator Control (TAC) System
Ignition Switch - 1 of 2
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
G104 - 1 of 2
G104 - 1 of 2
Figure
2:
Engine Data Sensors - 5-Volt and Low Reference Busses
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - MAP, ECT, MAF, and IAT Sensors
Power, Ground, Serial Data, DIC, and Indicators
Figure
3:
Engine Data Sensors - MAP, ECT, MAF, and IAT Sensors
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Heated Oxygen Sensors (HO2S)
Engine Data Sensors - 5-Volt and Low Reference Busses
Underhood Fuse Block B+ Bus - 2 of 2
G104 - 1 of 2
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
Underhood Fuse Block - WASH NOZ, STRG CTLS, and IGN MOD/MAF Fuses
G104 - 1 of 2
G140, G141, and G142 (LS2)
Figure
4:
Engine Data Sensors - Heated Oxygen Sensors (HO2S)
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Throttle Actuator Control (TAC) System
Engine Data Sensors - MAP, ECT, MAF, and IAT Sensors
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Figure
5:
Engine Data Sensors - Throttle Actuator Control (TAC) System
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Odd Ignition Coils
Engine Data Sensors - Heated Oxygen Sensors (HO2S)
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
Underhood Fuse Block - STARTER Relay, IGN 1 Relay, HTR VLV/CLUTCH, and TCM/IPC Fuses
BPP Sensor, Switches, and Indicators - 6.0L (LS2)
Figure
6:
Ignition Controls - Odd Ignition Coils
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Even Ignition Coils
Engine Data Sensors - Throttle Actuator Control (TAC) System
Underhood Fuse Block - ODD INJ/COIL Fuse
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block - ODD INJ/COIL Fuse
G140, G141, and G142 (LS2)
Figure
7:
Ignition Controls - Even Ignition Coils
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Knock, CKP, and CMP Sensors
Ignition Controls - Odd Ignition Coils
Underhood Fuse Block EVEN INJ/COIL Fuse
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block EVEN INJ/COIL Fuse
G140, G141, and G142 (LS2)
Figure
8:
Ignition Controls - Knock, CKP, and CMP Sensors
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - Fuel Injectors and Fuel Pump and Sender Assembly
Ignition Controls - Even Ignition Coils
Figure
9:
Fuel Controls - Fuel Injectors and Fuel Pump and Sender Assembly
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls
Ignition Controls - Knock, CKP, and CMP Sensors
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block - ODD INJ/COIL Fuse
Underhood Fuse Block B+ Bus - 2 of 2
Right Rear Fuse Block B+ Bus
G401
Gages - 6.0L (LS2)
Figure
10:
Fuel Controls - EVAP Controls
Master Electrical Component List
Engine Control Module Description
Control Module References
Controlled/Monitored Subsystem References
Fuel Controls - Fuel Injectors and Fuel Pump and Sender Assembly
Underhood Fuse Block - COOLING FAN Fuses/Relays, MAIN Relay, ECM and TOS Fuses
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block - COOLING FAN Fuses/Relays, MAIN Relay, ECM and TOS Fuses
Underhood Fuse Block - COOLING FAN Fuses/Relays, MAIN Relay, ECM and TOS Fuses
Engine Data Sensors - 5-Volt and Low Reference Busses
Right Rear Fuse Block - DR MOD PWR Circuit Breaker, CANISTER VENT, RIM/IGN SW, R FRT HTD SEAT MOD, and POWER SOUNDER Fuses
Figure
11:
Controlled/Monitored Subsystem References
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls
Starting System - 2.8L/3.6L (LP1/LY7)
BPP Sensor, Switches, and Indicators - 2.8L/3.6L (LP1/LY7)
A/C Compressor Controls - 6.0L (LS2)
Cooling Fans 6.0L (LS2)
Engine Oil Pressure (EOP) sensor, Engine Oil Level/Temperature Sensor, TFT Indicator
Manual Transmission (M12/MN6)