G103

Harness Routing Views

Engine Harness Routing - Left Side (4.3L)




1 - Throttle Body
2 - G107
3 - Transmission
4 - X300
5 - X109
6 - X110 (NQG/NQH)
7 - Fuse Block - Underhood X2

Engine Harness Routing - Top (4.3L)




1 - Mega Fuse Ring Terminal
2 - X175 (M30)
3 - J128
4 - J105
5 - J106
6 - J130 (M30 with NQG/NQH)
7 - Engine Control Module (ECM) X1
8 - Engine Control Module (ECM) X2
9 - G103
10 - X112
11 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector



Powertrain Component Views

Right Side of the Engine Components (4.3L)




1 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 - Throttle Body
3 - Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
4 - X112
5 - G103
6 - Crankshaft Position (CKP) Sensor
7 - Knock Sensor (KS) 2
8 - Starter Motor
9 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
10 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
11 - Vehicle Speed Sensor (VSS) (M30/TZ0)



Ground Views

Engine Harness - Top (4.3L)




1 - Mega Fuse Ring Terminal
2 - X175 (M30)
3 - J128
4 - J105
5 - J106
6 - J130 (M30 with NQG/NQH)
7 - Engine Control Module (ECM) X1
8 - Engine Control Module (ECM) X2
9 - G103
10 - X112
11 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector