GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Blazer - 4WD - RHD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Engine Controls Component Views
Figure 1:

Powertrain Control Module (PCM)
Object Number: 731893 Size: LF
(1)Powertrain Control Module (PCM)
(2)C102
(3)C101
(4)Body Harness
(5)Secondary Air Injection Pump Harness
(6)S121
(7)S113
(8)C117
(9)Powertrain Control Module (PCM), Connector C1
(10)Powertrain Control Module (PCM), Connector C2
(11)Engine Harness
Figure 2:

Fuse Block - Underhood Assembly and Electronic Brake Control Module (EBCM)
Object Number: 358368 Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)Fuse Block - Underhood Assembly
(3) Front Right Fender
Figure 3:

Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor
Object Number: 246881 Size: MF
(1)Intake Air Temperature (IAT) Sensor
(2)Air Outlet from Filter
(3)Distributor
(4)Knock Sensor (KS)
(5)Mass Air Flow (MAF) Sensor
Figure 4:

Crankshaft Position (CKP) Sensor
Object Number: 235188 Size: MF
(1)Crankshaft
(2)Front Engine Cover
(3)Crankshaft Position (CKP) Sensor
Figure 5:

Crankshaft Position (CKP) Reluctor Wheel
Object Number: 212697 Size: MF
(1)Crankshaft Position (CKP) Reluctor Wheel
(2)Crankshaft
(3)Engine Block
Figure 6:

Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive Crankcase Ventilation Valve (PCV)
Object Number: 212698 Size: MF
(1)Throttle Position (TP) Sensor
(2)Idle Air Control (IAC) Valve
(3)Ignition Coil
(4)Evaporative (EVAP) Canister Purge Valve
(5)Oil Pressure Switch
(6)Knock Sensor (KS)
(7)Fuel Pressure Connection Valve
(8)Positive Crankcase Ventilation Valve (PCV)
Figure 7:

MAP, EGR, Purge Solenoid, and Throttle Body
Object Number: 209643 Size: SF
(1)Throttle Body
(2)Exhaust Gas Recirculation (EGR) Valve
(3)Generator
(4)Evaporative Emission (EVAP) Canister Purge Valve
(5)Manifold Absolute Pressure (MAP) Sensor
Figure 8:

Left Side of the Engine Components (4.3L)
Object Number: 235186 Size: MF
(1)Bank 1 Cylinder Head
(2)Engine Coolant Temperature (ECT) Sensor
Figure 9:

Ignition Coil, Ignition Control Module (ICM), Manifold Absolute Pressure (MAP) Sensor, Throttle Body, and Evaporative Emission (EVAP) Canister Purge Solenoid
Object Number: 212690 Size: LF
(1)EVAP Pipe
(2)Central Sequential Fuel Injection (Central SFI) Connector
(3)Throttle Body
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Ignition Control Module (ICM)
(6)Ignition Coil
(7)Evaporative Emission (EVAP) Canister Purge Solenoid
Figure 10:

Camshaft Position (CMP) Sensor, Knock Sensor (KS), and Oil Pressure Switch
Object Number: 212680 Size: MF
(1)Camshaft Position (CMP) Sensor
(2)Oil Pressure Switch
(3)Knock Sensor (KS)
Figure 11:

Heated Oxygen Sensors (HO2S)
Object Number: 430019 Size: MF
(1)Heated Oxygen Sensors (HO2S) Bank 1 Sensor 2
(2)Heated Oxygen Sensors (HO2S) Bank 1 Sensor 1
(3)Heated Oxygen Sensors (HO2S) Bank 2 Sensor 1
Figure 12:

Vehicle Speed Sensor (VSS) - 2WD Automatic Transmission
Object Number: 209622 Size: SF
(1)Vehicle Speed Sensor (VSS)
Figure 13:

Manual Transmission (4.3L w/2WD)
Object Number: 246886 Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 14:

Transfer Case (4.3L A/T w/4WD)
Object Number: 246883 Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 15:

Transfer Case (4.3L M/T w/4WD)
Object Number: 246884 Size: SF
(1)Manual Transmission
(2)Vehicle Speed Sensor (VSS)
(3)Transfer Case (4WD)
Figure 16:

Vehicle Speed Sensor (VSS) All Wheel Drive (AWD)
Object Number: 240975 Size: MF
(1)Automatic Transmission
(2)Transfer Case (All Wheel Drive)
(3)Vehicle Speed Sensor (VSS)
Figure 17:

EVAP Canister and EVAP Vent Valve
Object Number: 235181 Size: LF
(1)Evaporative Emissions (EVAP) Vent Solenoid Valve
(2)Crossmember
(3)EVAP Canister
(4)Fuel Tank
(5)Fuel Tank Sender Assembly
Figure 18:

Fuel Tank Pressure Sensor and Fuel Level Sender Assembly
Object Number: 235167 Size: MF
(1)Fuel Tank
(2)Fuel Tank Pressure Sensor Connector
(3)Fuel Level Sender Connector
(4)Fuel Pump and Sender Assembly