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Wiring Systems & Electrical Power Management - Introduction: Overview GMC Envoy II

Electrical Component Locations 68 illustrations ~214 words

Power and Grounding Schematic Icons

Power and Grounding Schematic Icons Icon Icon Definition CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs

Scheme 134

Scheme 134: Power Distribution Schematics

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Scheme 153

Scheme 153: Ground Distribution Schematics

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Scheme 165

Scheme 165: Harness Routing Views
CalloutComponent Name
1C105
2Fuse Block - Underhood C4
3Park/Turn Signal Lamp - LF
4C102
5Horn Assembly
6C118
7Windshield Washer Fluid Level Switch (U68)
8Headlamp Washer Fluid Pump (CE4)
9Windshield Washer Fluid Pump
10A/C Low Pressure Switch
11S104 (W49)
12S103
13G103
14Park/Turn Signal Lamp - RF
15Marker Lamp - RF
16Cornering Lamp - Right
17Fog Lamp - RF
18C103
19Rear Window Washer Fluid Pump (CD6)
20S113
21Ambient Air Temperature Sensor (CJ3)
22S107
23Fog Lamp - LF
24S106 (W49)
25Cornering Lamp - Left
26Marker Lamp - LF

Scheme 166

Scheme 166
CalloutComponent Name
1Cooling Fan
2C118

Scheme 167

Scheme 167
CalloutComponent Name
1Engine Coolant Temperature (ECT) Sensor
2Evaporative Emission (EVAP) Canister Purge Solenoid
3Powertrain Control Module (PCM) C3
4Throttle Body
5Manifold Absolute Pressure (MAP) Sensor
6Powertrain Control Module (PCM) C2
7C100
8Starter
9Fuse Block - Underhood C1
10S110
11Knock Sensor (KS) 2 - Rear
12Crankshaft Position (CKP) Sensor
13G109
14G101
15G110
16A/C Compressor Clutch Assembly
17A/C Refrigerant Pressure Sensor
18Knock Sensor (KS) 1 - Front
19G107
20Generator

Scheme 168

Scheme 168
CalloutComponent Name
1Park/Neutral Position (PNP) Switch
2Heated Oxygen Sensor (HO2S) 2
3C104
4Ignition Coil 5
5Ignition Coil 4
6Ignition Coil 3
7Ignition Coil 2
8Ignition Coil 1
9Camshaft Actuator Solenoid Assembly
10Camshaft Position (CMP) Sensor
11Engine Oil Pressure (EOP) Switch
12Heated Oxygen Sensor (HO2S) 1
13Secondary Air Injection (AIR) Solenoid (K18)
14Intake Air temperature (IAT) Sensor
15Ignition Coil 6
16C175
17Vehicle Speed Sensor (2WD)/C310 (4WD)

Scheme 169

Scheme 169
CalloutComponent Name
1C104
2Fuel Injector 6
3Fuel Injector 5
4Fuel Injector 4
5Fuel Injector 3
6Fuel Injector 2
7Fuel Injector 1

Scheme 170

Scheme 170
CalloutComponent Name
1Generator
2S112 (DoD)
3Evaporative Emission (EVAP) Canister Purge Solenoid
4C109
5Fuel Injector 3
6Fuel Injector 5
7Fuel Injector 7
8Engine Oil Pressure (EOP) Sensor
9Valve Lifter Oil Manifold (VLOM) Assembly (DoD)
10Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
11Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
12Vehicle Speed Sensor (VSS) (2WD)/C310 (4WD)
13Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
14Park/Neutral Position (PNP) Switch
15G109
16Knock Sensor (KS) 1 - Left
17G107
18C107
19G108
20Engine Coolant Temperature (ECT) Sensor
21Engine Control Module (ECM) C1
22Engine Control Module (ECM) C2
23Engine Control Module (ECM) C3
24Fuse Block - Underhood C1
25S100
26Brake Booster Vacuum Sensor (DoD)
27Fuel Injector 1

Scheme 171

Scheme 171
CalloutComponent Name
1Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
2Fuel Injector 8
3C108
4Fuel Injector 6
5S102
6Fuel Injector 4
7Fuel Injector 2
8Manifold Absolute Pressure (MAP) Sensor
9S105
10S101
11Transmission Control Module (TCM)
12Throttle Body
13C110
14A/C Compressor Clutch Assembly
15A/C Refrigerant Pressure Sensor
16Knock Sensor (KS) 2 - Right
17Starter
18Crankshaft Position (CKP) Sensor
19Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
20C175

Scheme 172

Scheme 172
CalloutComponent Name
1Camshaft Position (CMP) Sensor
2C110

Scheme 173

Scheme 173
CalloutComponent Name
1Ignition Coil 1
2Ignition Coil 3
3C109
4Ignition Coil 2
5Ignition Coil 5
6Ignition Coil 4
7C108
8Ignition Coil 6
9Ignition Coil 7
10Ignition Coil 8

Scheme 174

Scheme 174
CalloutComponent Name
1Electronic Frontal Sensor (EFS) - Right
2Front Axle Actuator (NP8)
3Wheel Speed Sensor - RF
4Electronic Brake Control Module (EBCM) C1
5Electronic Brake Control Module (EBCM) C2
6Secondary Air Injection (AIR) Pump (4.2L w/K18)
7C310 (4WD)
8Vehicle Speed Sensor (VSS) (4WD)
9S306
10Fuel Pump and Sender Assembly
11Evaporative Emission (EVAP) Canister Vent Solenoid
12Air Suspension Sensor - RR (G67)
13Air Suspension Compressor Assembly C1 (G67)
14Backup Lamp - Right (Z88)
15Backup Lamp - Left (Z88)
16S408 (Z88)
17G403
18Air Suspension Sensor - LR (G67)
19Fuel Tank Pressure (FTP) Sensor
20S359 (5.3L)
21G305
22Propshaft Speed Sensor - Rear
23Transfer Case Encoder Motor (4WD)
24Propshaft Speed Sensor - Front
25Secondary Air Injection (AIR) Pump Relay (4.2L w/K18)
26G304
27Wheel Speed Sensor - LF
28C101
29Fuse Block - Underhood C3
30Fuse Block - Underhood C7
31Electronic Frontal Sensor (EFS) - Left

Scheme 175

Scheme 175
CalloutComponent Name
1Electronic Frontal Sensor (EFS) - Right
2Front Axle Actuator (NP8)
3Wheel Speed Sensor - RF
4C310 (4WD)
5Propshaft Speed Sensor - Front
6Propshaft Speed Sensor - Rear
7Vehicle Speed Sensor (VSS) (4WD)
8Fuel Pump and Sender Assembly
9Air Suspension Sensor - RR (G67)
10S408 (Z88)
11Backup Lamp - Right (Z88)
12Backup Lamp - Left (Z88)
13Trailer Connector
14Air Suspension Compressor Assembly C1 (G67)
15G403
16Air Suspension Sensor - LR (G67)
17Fuel Tank Pressure (FTP) Sensor
18S306
19S359 (5.3L)
20G305
21Transfer Case Encoder Motor (4WD)
22Electronic Brake Control Module (EBCM) C2
23Electronic Brake Control Module (EBCM) C1
24G304
25Wheel Speed Sensor - LF
26Brake Fluid Level Switch
27C101
28Fuse Block - Underhood C3
29Fuse Block - Underhood C7
30Electronic Frontal Sensor (EFS) - Left

Scheme 176

Scheme 176
CalloutComponent Name
1C101
2G104
3G105
4G102
5C107 (5.3L)
6C105
7Fuse Block - Underhood C2
8S117
9C100
10Powertrain Control Module (PCM) C1 (4.2L)

Scheme 177

Scheme 177
CalloutComponent Name
1Speaker - RF I/P (UQA)
2Recirculation Actuator
3S216
4Radio C2
5Radio C1
6Ambient Light Sensor (CJ3)/Ambient Light/Sunload Sensor Assembly (CJ2)
7Mode Actuator
8Air Temperature Sensor - Lower Left (CJ2)
9Defrost Actuator
10Windshield Wiper motor
11Speaker - LF I/P (UQA)
12C225 (JF4)
13Turn Signal/Hazard Flasher Module
14Stop Lamp Switch
15Accelerator Pedal Position (APP) Sensor
16S239
17S202
18S217
19Air Temperature Actuator - Right
20Splice Pack SP205
21S211
22S230
23Air Temperature Sensor - Lower Right (CJ2)
24Splice Pack SP201
25Air Temperature Actuator - Right
26S271 (CJ2)
27Blower Motor Resistor Assembly (CJ3)/Blower Motor Control Module (CJ2)
28S250 (CJ3)
29S201 (CJ3)
30Inflatable Restraint I/P Module

Scheme 178

Scheme 178
CalloutComponent Name
1Instrument Panel Cluster
2Transfer Case Shift Control Switch (NP8)
3Air Temperature Sensor - Upper Left (CJ2)
4HVAC Control Module C2
5Air Temperature Sensor - Upper Right (CJ2)
6HVAC Control Module C1
7C221 (U42/U2K)
8C202
9C203 (ASF)
10Auxiliary Power Outlet - Front
11Cigar Lighter
12C307
13Inflatable Restraint Sensing and Diagnostic Module (SDM)
14S220
15Rollover Sensor
16C304
17Fuse Block - Rear C1
18Body Control Module (BCM) C1
19Body Control Module (BCM) C2
20S203
21S320
22Rear Window Wiper/Washer Switch (CD6)
23C201
24C275
25Data Link Connector (DLC)
26Transfer Case Shift Control Module C2 (4WD)
27Transfer Case Shift Control Module C3 (4WD)
28Headlamp Switch C1
29Headlamp Switch C2

Scheme 179

Scheme 179
CalloutComponent Name
1Digital Radio Receiver (U2K)
2C221 (U42/U2K)
3C220 (U42)

Scheme 180

Scheme 180
CalloutComponent Name
1Steering Wheel Control Switch Assembly - Upper Left
2C277
3Steering Wheel Control Switch Assembly - Upper Right
4Steering Wheel Control Switch Assembly - Lower Right
5Steering Wheel Control Switch Assembly - Lower Left

Scheme 181

Scheme 181
CalloutComponent Name
1Electronic Adjustable Pedals (EAP) Relay
2C225
3Electronic Adjustable Pedals (EAP) Assembly

Scheme 182

Scheme 182
CalloutComponent Name
1Splice Pack SP306
2S374 (BAE)
3S362 (BAE)
4Center High Mounted Stop Lamp (CHMSL)
5C900
6S401
7G401
8Tail Lamp Circuit Board - Left
9C304
10Inflatable Restraint Roof Rail Module - Left
11Fuse Block - Rear C2
12C700
13Air Temperature Sensor Assembly - Inside (CJ2)
14G302
15S302
16C317
17C500
18C311
19C306
20C314
21C318
22C203 (ASF)
23C202
24C220 (U42)
25C600
26S310
27S303
28G303
29C800
30Vehicle Communication Interface Module (VCIM) (UE1) C1
31Vehicle Communication Interface Module (VCIM) (UE1) C2
32Inflatable Restraint Roof Rail Module - Right
33S402
34Audio Amplifier (UQA) C2
35Audio Amplifier (UQA) C1
36Tail Lamp Circuit Board - Right
37G402

Scheme 183

Scheme 183
CalloutComponent Name
1Tail Lamp Circuit Board - Right
2S402
3G402
4Inflatable Restraint Roof Rail Module - Right
5Vehicle Communication Interface Module (VCIM) (UE1) C1
6Vehicle Communication Interface Module (VCIM) (UE1) C2
7Center High Mounted Stop Lamp (CHMSL)
8C900
9G401
10Tail Lamp Circuit Board - Left
11S401
12Audio Amplifier (UQA) C1
13Audio Amplifier (UQA) C2
14Splice Pack SP 306
15C304
16C306
17Fuse Block - Rear C2
18C309
19Inflatable Restraint Roof Rail Module - Left
20C700
21Air Temperature Sensor Assembly - Inside (CJ2)
22G302
23S302
24C311
25C317
26C500
27C202
28C203
29C220 (U42)
30C600
31C318
32S310
33C314
34S303
35G303
36C800
37C401

Scheme 184

Scheme 184
CalloutComponent Name
1Cargo Lamp
2C308 (CF5)
3Courtesy/Reading Lamp - Center
4S390
5S331
6C305
7S322
8Vanity Mirror Lamp - Right (DH2)
9Outside Moisture Sensor (CE1)
10Inside Rearview Mirror
11Vanity Mirror Lamp - Left (DH2)
12S312
13C306
14Fuse Block - Underhood C3

Scheme 185

Scheme 185
CalloutComponent Name
1Cargo Lamp (Except XUV)
2Quarterglass Actuator - Right (A34)
3Courtesy/Reading Lamp (3rd Row) - Right (Except XUV)
4S312
5Courtesy/Reading Lamp (3rd Row) - Center
6S390
7S331
8C305
9S322
10Vanity Mirror Lamp - Right (DH2)
11Outside Moisture Sensor (CE1)
12Inside Rearview Mirror
13Vanity Mirror Lamp - Left (DH2)
14C306
15Fuse Block - Underhood C3
16C308 (CF5)
17G306
18Courtesy/Reading Lamp (3rd Row) - Left (Except XUV)
19Quarterglass Actuator - Left (A34)
20S350 (Except XUV)
21S391 (Except XUV)
22S333 (Except XUV)

Scheme 186

Scheme 186
CalloutComponent Name
1Seat Belt Pretensioner - Left
2C317

Scheme 187

Scheme 187
CalloutComponent Name
1Seat Belt Pretensioner - Right
2C318

Scheme 188

Scheme 188
CalloutComponent Name
1Auxiliary Power Outlet - Console
2HVAC Control Module - Auxiliary
3S307
4C307
5Mode Actuator - Auxiliary (Long Wheel Base Except XUV)
CalloutComponent Name
1HVAC Control Module - Auxiliary
2Auxiliary Power Outlet - Console
3S324 (Long Wheel Base Except XUV)
4Blower Motor Switch - Front Auxiliary
5S323 (Long Wheel Base Except XUV)
6C307
7C309 (Long Wheel Base Except XUV)
8S307
9S325 (Long Wheel Base Except XUV)
10Console Mode Actuator - Auxiliary
11S326 (Long Wheel Base Except XUV)

Scheme 189

Scheme 189
CalloutComponent Name
1HVAC Control Module - Auxiliary
2Auxiliary Power Outlet - Console
3Traction Control Switch (NW7)
4C307
5C303 (NW7)
6Mode Actuator - Auxiliary
7S307
8Inverting Driver Module (NW7)

Scheme 190

Scheme 190
CalloutComponent Name
1C500
2Driver Door Module (DDM) C2
3Door Latch Assembly - Driver C1
4Door Latch Assembly - Driver C3
5Door Latch Assembly - Driver C2
6Inflatable Restraint Side Impact Sensor (SIS) - Left (ASF)
7Window Motor - Driver

Scheme 191

Scheme 191
CalloutComponent Name
1Door Latch Assembly - Passenger C1
2Door Latch Assembly - Passenger C2
3Inflatable Restraint Side Impact Sensor (SIS) - Right (ASF)
4Window Motor - Front Passenger
5Front Passenger Door Module (FPDM) C1
6C600

Scheme 192

Scheme 192
CalloutComponent Name
1C700
2Window Switch - LR
3Door Latch Assembly - LR C1
4Door Latch Assembly - LR C2
5Speaker - LR Door
6Window Motor - LR

Scheme 193

Scheme 193
CalloutComponent Name
1Door Latch Assembly - RR C1
2Window Switch - RR
3Window Motor - RR
4C800
5Speaker - RR Door
6Door Latch Assembly - RR C2

Scheme 194

Scheme 194
CalloutComponent Name
1Midgate Glass Motor
2Midgate Latch - Left
3Midgate Latch Release Switch
4S357
5C320
6S356
7S355
8Diode Assembly
9Glass Full Down Switch

Scheme 195

Scheme 195
CalloutComponent Name
1Power Roof Module C1
2Power Roof Module C2
3Power Roof Motor
4C321
5C322

Scheme 196

Scheme 196
CalloutComponent Name
1Mode Actuator - Auxiliary
2Blower Motor - Auxiliary
3Air Temperature Actuator - Auxiliary
4C401
5Blower Motor Fuse - Auxiliary

Scheme 197

Scheme 197
CalloutComponent Name
1Rear Window Wiper Motor (CD6)
2C905 (C49)
3Liftglass Ajar Switch
4C902 (Y92)
5C900
6C904 (C49)
7S901
8Liftgate Module (LGM) C3
9Liftgate Module (LGM) C2
10Liftgate Module (LGM) C1
11C901
12Liftgate Latch Assembly C2
13Liftgate Latch Assembly C1
14Cargo Lamp

Scheme 198

Scheme 198
CalloutComponent Name
1C901
2Center High Mounted Stop Lamp (CHMSL)
3Rear Window Wiper Motor (CD6)
4Endgate Window Regulator
5Endgate Actuator - Upper Right
6C900
7S905 (C49)
8Rear Window Defogger Grid C2 (C49)
9S910
10S911
11S913
12S912
13Rear Window Defogger Grid C1 (C49)
14Endgate Actuator - Lower Left
15S904 (C49)
16Endgate Latch Relay
17S914
18Endgate Actuator - Upper Left

Scheme 199

Scheme 199
CalloutComponent Name
1Rear Window Defogger Grid C1
2C905
3C904
4Rear Window Defogger Grid C2

Scheme 200

Scheme 200
CalloutComponent Name
1License Lamp - Right
2S902
3S909
4License Lamp - Left
5C901

Scheme 201

Scheme 201
CalloutComponent Name
1Endgate Key Cylinder
2License Lamp - Right
3Endgate Drop Handle Switch
4S902
5License Lamp - Left
6S915
7S909
8Endgate Swing Handle Switch
9C901

Electrical Center Identification Views

See ELECTRICAL CENTER IDENTIFICATION VIEWS