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Component Locations

NOTE: For component locations refer to COMPONENT LOCATIONS - ASTRO & SAFARI  or COMPONENT LOCATIONS - BLAZER, JIMMY CANADIAN, SAFARI & S10 PICKUP  table or illustrations. See Fig 1-Fig 17 .
COMPONENT LOCATIONS - ASTRO & SAFARI

Component Location
A/C Compressor Clutch Relay In Underhood Fuse/Relay Block
A/C High Pressure Cut-Off Switch On Rear Of A/C Compressor
A/C Low Pressure Cut-Out Switch On Top Of A/C Receiver Dryer
Camshaft Position Sensor In Distributor
Crankshaft Position Sensor Behind Crankshaft Pulley
Cruise Control Module Center Of Dash, Left Of Windshield Wiper Module
Data Link Connector Under Left Side Of Instrument Panel
EGR Valve Solenoid Top Of Engine, Left Of Generator
Engine Coolant Temperature Sensor On Left Side Of Engine, Between Spark Plugs
EVAP Canister Purge Solenoid Top Of Engine, Near MAP Sensor
EVAP Canister Vent Solenoid Left Frame Rail, Near Fuel Filter
Fuel Pump Relay In Underhood Fuse/Relay Block
Heated Oxygen Sensor - Bank 1, Sensor 1 Left Front Exhaust Pipe
Heated Oxygen Sensor - Bank 1, Sensor 3 Rear Of Catalytic Converter
Heated Oxygen Sensor - Bank 2, Sensor 1 Right Front Exhaust Pipe
Heater & A/C Control Module Center Of Instrument Panel, At Heater Control
Idle Air Control Valve Left Rear Of Throttle Body
Ignition Control Module Top Of Engine, In Front Of Coil
Intake Air Temperature Sensor In Air Intake Duct
Knock Sensor On Top Rear Of Engine, Above Transmission Bellhousing
Manifold Absolute Pressure Sensor Top Center Of Engine
Mass Airflow Sensor In Air Intake Duct
Oil Pressure Switch Rear Of Engine, Left Of Distributor
Throttle Position Sensor On Side Of Throttle Body
Underhood Fuse/Relay Block Left Front Side Of Engine Compartment, Near Battery
Vehicle Control Module Near Battery
Vehicle Speed Sensor Rear Of Transmission
COMPONENT LOCATIONS - BLAZER, JIMMY CANADIAN, SONOMA & S10 PICKUP

Component Location
A/C Compressor Clutch Relay In Underhood Fuse/Relay Block
A/C Compressor High Pressure Cut-Off Switch On Rear Of A/C Compressor
A/C Compressor Cycling Switch On Accumulator
Body Control Module Lower Rear Of Instrument Panel, On Heater
Camshaft Position Sensor In Distributor
Crankshaft Position Sensor Behind Crankshaft Pulley
Cruise Control Module Left Rear Of Engine Compartment, On Cowl
Data Link Connector Lower Left Side Of Instrument Panel
EGR Valve Top Front Of Engine
Engine Coolant Temperature Sensor Left Side Of Engine, Between Spark Plugs
EVAP Canister Purge Solenoid Top Right Rear Of Engine
EVAP Canister Vent Solenoid On Crossmember, Behind Fuel Tank
Fuel Pump Relay In Underhood Fuse/Relay Block
Fuel Tank Pressure Sensor Top Of Fuel Tank
Heated Oxygen Sensor - Bank 1, Sensor 1 Left Exhaust Pipe, Ahead Of Catalytic Converter
Heated Oxygen Sensor - Bank 1, Sensor 3 Rear Of Catalytic Converter
Heated Oxygen Sensor - Bank 2, Sensor 1 Right Exhaust Pipe, Ahead Of Catalytic Converter
Idle Air Control Valve On Throttle Body
Ignition Control Module Top Right Side Of Engine
Intake Air Temperature Sensor In Air Intake Duct
Knock Sensor Top Rear Of Engine, Above Transmission Bellhousing
Manifold Absolute Pressure Sensor Top Center Of Engine
Mass Airflow Sensor In Air Intake Duct
Relay Block Behind Left Side Of Instrument Panel, Right Of Fuse Block
Throttle Position Sensor On Throttle Body
Underhood Fuse/Relay Block On Left Side Of Engine Compartment, On Wheelwell
Vehicle Control Module Right Front Of Engine Compartment
Vehicle Speed Sensor (A/T With 2WD) Right Rear Of Transmission
Vehicle Speed Sensor (A/T With 4WD) Right Rear Of Transfer Case
Vehicle Speed Sensor (M/T With 2WD) Left Rear Of Transmission
Fig 1: Locating Crankshaft Position Sensor
G00028213Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Engine Coolant Temperature Sensor
G00027494Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating EVAP Canister Vent Solenoid (Astro & Safari)
G00101480Courtesy of GENERAL MOTORS CORP.
Fig 4: Locating EVAP Canister Vent Valve & EVAP Canister (Blazer, Jimmy Canadian, Sonoma & S10 Pickup)
G00101481Courtesy of GENERAL MOTORS CORP.
Fig 5: Locating Fuel Tank Pressure Sensor (Astro & Safari)
G00101482Courtesy of GENERAL MOTORS CORP.
Fig 6: Locating Fuel Tank Pressure Sensor (Blazer, Jimmy Canadian, Sonoma & S10 Pickup)
G00101483Courtesy of GENERAL MOTORS CORP.
Fig 7: Locating Heated Oxygen Sensors
G00101477Courtesy of GENERAL MOTORS CORP.
Fig 8: Locating Intake Air Temperature & Mass Airflow Sensors (Astro & Safari)
G00101473Courtesy of GENERAL MOTORS CORP.
Fig 9: Locating Intake Air Temperature, Knock & Mass Airflow Sensors (Blazer, Jimmy Canadian, Sonoma & S10 Pickup)
G00101474Courtesy of GENERAL MOTORS CORP.
Fig 10: Locating MAP Sensor & EVAP Canister Purge Solenoid (Astro & Safari)
G00101475Courtesy of GENERAL MOTORS CORP.
Fig 11: Locating MAP Sensor, Ignition Control Module, & EVAP Canister Purge Solenoid (Astro & Safari)
G00028207Courtesy of GENERAL MOTORS CORP.
Fig 12: Locating MAP Sensor, Ignition Control Module, Ignition Coil & EVAP Canister Purge Solenoid (Blazer, Jimmy Canadian, Sonoma & S10 Pickup)
G00101476Courtesy of GENERAL MOTORS CORP.
Fig 13: Locating PCM & PCM Harness Connectors (Astro & Safari)
G00101471Courtesy of GENERAL MOTORS CORP.
Fig 14: Locating PCM & PCM Harness Connectors (Blazer, Jimmy Canadian, Sonoma & S10 Pickup)
G00101472Courtesy of GENERAL MOTORS CORP.
Fig 15: Locating Knock Sensor, TP Sensor, EVAP Canister Purge Solenoid & Engine Oil Pressure Switch
G00028475Courtesy of GENERAL MOTORS CORP.
Fig 16: Locating Vehicle Speed Sensor (AWD Astro & Safari)
G00101479Courtesy of GENERAL MOTORS CORP.
Fig 17: Locating Vehicle Speed Sensor (2WD Astro & Safari)
G00101478Courtesy of GENERAL MOTORS CORP.
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