Engine Controls Schematics. Chevrolet Impala 2009

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Controls Schematics

Figure 1:	ECM Power, Ground, MIL, and Serial Data Master Electrical Component List Engine Control Module Description Control Module References 5-Volt and Low Reference Bussing Fuse Block - Underhood Bussing ECM IGN, TRANS, PWR DROP/CRNK, AIRBAG/DISPLAY, STRTR, FUEL/PUMP, and HORN Fuses EMISSIONS 1, EMISSIONS 2, A/C CMPRSR Fuses, and A/C CMPRSR, FAN 1, FAN 2, and FAN 3 Relays ONSTAR, INT LTS/PNL DIM, LT T/SIG, RT T/SIG, CHMSL/BCK-UP, INT LIGHTS, RVC SEN, and ECM/TCM Fuses High Speed GMLAN Serial Data High Speed GMLAN Serial Data G101, G102, and G111 G101, G102, and G111
Figure 2:	5-Volt and Low Reference Bussing Master Electrical Component List Engine Control Module Description Control Module References MAF/IAT, MAP, and ECT Sensors ECM Power, Ground, MIL, and Serial Data
Figure 3:	MAF/IAT, MAP, and ECT Sensors Master Electrical Component List Engine Control Module Description Control Module References Heated Oxygen Sensors 5-Volt and Low Reference Bussing ECM Power, Ground, MIL, and Serial Data EMISSIONS 1, EMISSIONS 2, A/C CMPRSR Fuses, and A/C CMPRSR, FAN 1, FAN 2, and FAN 3 Relays Turn Signal, Hazard, and Stop Lamps Outputs G101, G102, and G111
Figure 4:	Heated Oxygen Sensors Master Electrical Component List Engine Control Module Description Control Module References Electronic Throttle Controls MAF/IAT, MAP, and ECT Sensors ECM Power, Ground, MIL, and Serial Data EMISSIONS 1, EMISSIONS 2, A/C CMPRSR Fuses, and A/C CMPRSR, FAN 1, FAN 2, and FAN 3 Relays
Figure 5:	Electronic Throttle Controls Master Electrical Component List Throttle Actuator Control (TAC) System Description Control Module References Fuel Injectors and Fuel Pump Controls Heated Oxygen Sensors
Figure 6:	Fuel Injectors Master Electrical Component List Fuel System Description Control Module References EVAP Solenoids and FTP Sensor Electronic Throttle Controls ECM Power, Ground, MIL, and Serial Data Fuse Block - Underhood Bussing ECM IGN, TRANS, PWR DROP/CRNK, AIRBAG/DISPLAY, STRTR, FUEL/PUMP, and HORN Fuses Power, Ground, and Gages G101, G102, and G111 G101, G102, and G111 G302 (2 of 2)
Figure 7:	EVAP Solenoids, FTP Sensor, and Fuel Pump Controls Master Electrical Component List Evaporative Emission Control System Description Control Module References Ignition Control Module Fuel Injectors and Fuel Pump Controls BATT 1, CNSTR, XM, TRUNK, AMP, AUX Fuses, and TRUNK Relay ECM Power, Ground, MIL, and Serial Data EMISSIONS 1, EMISSIONS 2, A/C CMPRSR Fuses, and A/C CMPRSR, FAN 1, FAN 2, and FAN 3 Relays Power, Ground, and Gages
Figure 8:	Ignition Control Module Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Camshaft, Crankshaft, Knock Sensors, and Camshaft Position Actuator Solenoid EVAP Solenoids and FTP Sensor ECM Power, Ground, MIL, and Serial Data G113, and G115
Figure 9:	Camshaft, Crankshaft, Knock Sensors, and Camshaft Position Actuator Solenoid Master Electrical Component List Camshaft Actuator System Description Control Module References Secondary Air Injection - NU3 Ignition Control Module
Figure 10:	Secondary Air Injection - NU6 Master Electrical Component List Secondary Air Injection System Description Control Module References Controlled/Monitored Subsystem References Camshaft, Crankshaft, Knock Sensors, and Camshaft Position Actuator Solenoid ECM Power, Ground, MIL, and Serial Data EMISSIONS 1, EMISSIONS 2, A/C CMPRSR Fuses, and A/C CMPRSR, FAN 1, FAN 2, and FAN 3 Relays Fuse Block - Underhood Bussing BATT 4, ABS MTR1, ABS MTR2, AIR PUMP, AIR SOL, AUX PWR, Radio Fuses, and PWR/WNDW Circuit Breaker G113, and G115 G101, G102, and G111
Figure 11:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Control Module References Secondary Air Injection - NU3 A/C Compressor Controls Engine Cooling Schematics Starter Indicators PRNDL, and IMS Switch