AIR CONDITIONING – Chevrolet Blazer 2001 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram for Chevrolet Blazer 2001

List of elements for Automatic A/C Wiring Diagram for Chevrolet Blazer 2001:

• (at a/c accumulator) a/c low pressure switch
• (body harness, near blower motor) s118
• (body harness, below i/p fuse block) sp201
• (dash harness, between breakout to ground splice & breakout to right courtesy lamp)
• (dome harness between breakouts to inside air temperature sensor & left sunshade mirror lamp, 5 cm from breakout to sensor)
• (engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector)
• (engine harness, on cathode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch) s104
• (right rear of cylinder head) g117
• 5 volt ref
• 5v ref
• A/c
• A/c comp rly ctrl
• A/c compres- sor clutch
• A/c compres- sor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (on rear of a/c compressor)
• A/c cycling sw sig
• A/c fuse 10a
• A/c request
• A/c request sig
• A10
• Air inlet
• Air temperature valve sensor & motor (on top right side of heater)
• Ambient air temperature sensor (on right radiator support bracket)
• B10
• Battery
• Blower motor
• Blower motor control module (on evaporator case)
• Body relay block (behind left side of dash, near i/p fuse block)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C2 underhood fuse block (on top of left front fender)
• Class 2
• Class 2 data
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link connector (dlc) (partial) (under left side of dash)
• Defogger system
• Defrost
• Elec actuator drive
• Elec actuator fbck
• Electric sensor rtn
• G104 (left rear of engine compt)
• G117 (right rear of cylinder head)
• G201 (right side of dash)
• G202 (left side of dash)
• Gnd
• Grd
• Ground
• Heater
• Heater/ defrost
• Hot at all times
• Hot in run
• Hot in run & start
• Hvac 1 fuse 21 10a
• Hvac control module (center of dash, below radio)
• Hvac fuse 30a
• Hvac vacuum control solenoid valve (lower rear of heater assy)
• I/p fuse block (on left end of dash)
• Ign e fuse 10a
• Ignition
• Illumination
• Inside air temperature sensor (in roof over driver's door)
• Inside temp sens sig
• Interior lights system
• Lower disc temp sens
• Lower discharge air temperature sensor (on left side of floor air outlet)
• Mode 1 drv
• Mode 2 drv
• Mode 3 drv
• Mode 4 drv
• Mode 5 drv
• Mtr feed
• Mtr ret
• Nca
• Outside temp sens sig
• Power mirrors system (automatic day-night mirrors)
• Powertrain control module (pcm) (on right front of engine compartment)
• Pwm signal input
• Pwm signal output
• Rdo batt fuse 19 15a
• Red
• Rr defog
• S106
• S240 (dash harness, 4 cm from breakout to bcm module connector & breakout to instrument cluster)
• S288
• S302
• Sensor gnd
• Solid state
• Sp200 (on body harness, center front of dash)
• Sp203 (dash harness, in front of ashtray)
• Sun load temp sens
• Sunload sensor (top center of dash)
• Tan
• Underhood fuse block (on top of left front fender)
• Upper disc temp sens
• Upper discharge air temperature sensor (on top front center of dash, behind radio in duct)

Compressor Wiring Diagram, Auto A/C for Chevrolet Blazer 2001

List of elements for Compressor Wiring Diagram, Auto A/C for Chevrolet Blazer 2001:

• (at a/c acumulator) a/c low pressure switch
• (engine harness between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
• (engine harness, on cathode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch) s104
• (right rear of cylinder head) g117
• A/c comp rly ctrl
• A/c compresor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (on rear of a/c compressor)
• A/c cycling sw sig
• A/c fuse 10a
• A/c request
• A/c request sig
• C11
• Class 2
• D12
• Hot at all times
• Hot in run & start
• Hvac control module (center of dash, below radio)
• Ign e fuse 10a
• Nca
• Powertrain control module (vcm) (on right front of engine compartment)
• S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
• Sp201 (body harness, below i/p fuse block)
• Underhood fuse block (on top of left front fender)

Compressor Wiring Diagram, Manual A/C for Chevrolet Blazer 2001

List of elements for Compressor Wiring Diagram, Manual A/C for Chevrolet Blazer 2001:

• (engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
• (right rear of cylinder head) g117
• A/c
• A/c comp rly ctrl
• A/c compresor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (on rear of a/c compressor)
• A/c fuse 10a
• A/c low pressure switch (at a/c accumulator)
• A/c low sw signal
• A/c request signal
• Bi-level a/c
• Blend
• D12
• Defrost
• Diode, in breakout to a/c compressor & cutoff switch) s104
• Heat
• Heater & a/c controller
• Hot at all times
• Hot in run
• Hot in run & start
• Hvac fuse 9 20a
• I/p fuse block (on left end of dash)
• Ign e fuse 10a
• Max a/c
• Nca
• Off
• Powertrain control module (pcm) (on right front of engine compartment)
• S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
• Underhood fuse block (on top of left front fender)
• Vent

Manual A/C Wiring Diagram for Chevrolet Blazer 2001

List of elements for Manual A/C Wiring Diagram for Chevrolet Blazer 2001:

• (dash harness, between breakouts for radio & bcm connector c3, 8 cm from breakout to radio) s205
• (engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
• (left rear of engine compartment) g104
• (left side of dash) g202
• (right rear of cylinder head) g117
• (right side of dash) g201
• 0.26 ohms
• 0.71 ohms
• 2.10 ohms
• 87a
• A/c
• A/c comp rly ctrl
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (on rear of a/c compressor)
• A/c cycling sw signal
• A/c fuse 10a
• A/c low pressure switch (at a/c accumulator)
• A/c request signal
• Bi-level
• Bi-level a/c
• Blend
• Blower motor (on right rear of engine compartment)
• Blower motor relay (on center rear of engine compartment)
• Blower motor resistor (on right rear of engine compartment, on blower module)
• Blower switch
• D (not used)
• D12
• Def
• Electric actuator (temperature) (on top right side of heater)
• Heat
• Heater & a/c controller
• High
• Hot at all times
• Hot in park & head
• Hot in run
• Hot in run & start
• Hvac 1 fuse 21 10a
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block (on left end of dash)
• If equipped
• Ign e fuse 10a
• Illum (x4)
• Illum fuse 12 10a
• Low
• Max a/c
• Med
• Mode door switch
• Nca
• Norm
• Off
• Pickup
• Power mirrors system (automatic day/night mirror)
• Powertrain control module (pcm) (on right front of engine compartment)
• S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
• S118 (body harness, between breakouts to blower motor & blower motor relay)
• S215 (dash harness, in breakout to heater controller connectors, 10 cm into breakout)
• S217 (dash harness, in breakout to heater controller connectors, 6 cm into breakout)
• Servo amplifier
• Sp202 (strapped to body harness, at left center of dash)
• Sp203 (dash harness, in front of ashtray)
• Switch) s104
• Tan
• Temp control
• Underhood fuse block (on top of left front fender)
• Utility
• Vent