AIR CONDITIONING – Cadillac Catera 1999 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Cadillac Catera 1999

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Cadillac Catera 1999:

• (a/c harn, in ecm housing)
• (a/c harn, left front of engine compt)
• (a/c harn, rear of hvac module)
• (i/p harn, right side of dash)
• (i/p harness, near cluster breakout)
• (i/p harness, near dlc breakout)
• (left front of engine compt)
• (left front of engine compt) g103
• (left side of dash) data link connector
• +5v
• A/c compressor clutch coil
• A/c compressor diode
• A/c compressor refrigerant pressure switch (left front of engine compt)
• A/c compressor relay
• A/c cutout
• A/c load switch (left front of engine compt)
• A/c req
• A/c req out
• A/c request
• A11
• A400
• Air mix 1
• Air mix 2
• Air mix 3
• Air mix 4
• Ambient air outside temperature sensor
• Blower controller (right side of dash)
• Blower diag
• Blower motor
• Blower out
• Body control module (on right "a" pillar)
• Bp900
• Clamp 15 fuse 14 10a
• Clamp 15a fuse 10 10a
• Day/night sig
• Def 1
• Def 2
• Def 3
• Def 4
• Defroster valve actuator (right side of dash)
• Ecm housing (left front of engine compt)
• Electronic brake/ traction control module (left front of engine compt)
• Engine control module
• Engine controls
• F800
• F830
• Floor 1
• Floor 2
• Floor 3
• Floor 4
• Fm430
• Fm60
• Fm8
• Fp120
• Fp812
• Fuse block
• G103
• Ground
• Headlamp automatic control ambient light sensor (top of dash)
• Headlights system
• Heater and a/c control
• Heater blower fuse 33 30a
• Hot at all times
• Hot in run
• Hot in run, bulb test or start
• Hzd fuse 12 20a
• Ign volt
• Inside air valve actuator (right side of dash)
• Left air duct temperature sensor (behind right side of dash)
• Left temperature valve actuator (right side of dash)
• Mode valve actuator (right side of dash)
• O/s mirror fuse 13 10a
• Outside temp
• P11
• P111
• Pa400
• Pa900
• Pm4
• Power
• Recirc vacuum solenoid valve (behind right side of dash)
• Recirc valve
• Red
• Relay ctrl
• Right air duct temperature sensor (behind right side of dash)
• Right temperature valve actuator (right side of dash)
• S110
• S160
• S205
• S220
• S229
• S235
• S236
• Sens gnd
• Sens left
• Sens right
• Serial data
• Speed sig
• Sun sens
• Tach input
• Test connector (in ecm housing)
• Twilight sens
• U10
• Vent 1
• Vent 2
• Vent 3
• Vent 4
• Water cut-off vacuum solenoid valve (behind right side of dash)
• Water vlv
• X800
• X812
• Xm110
• Xm112
• Xp33
• Xy360

Automatic A/C Wiring Diagram (2 of 2) for Cadillac Catera 1999

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Cadillac Catera 1999:

• (a/c harn, inside ecm housing)
• (a/c harn, left front of engine compt)
• (a/c harness, inside ecm housing)
• (left front of engine compt)
• Auxiliary engine coolant fan 1 (left front of radiator)
• Auxiliary engine coolant fan 2 (right front of radiator)
• Auxiliary heater water pump (left front of engine compt)
• Auxiliary water pump (right of battery)
• Auxiliary water pump relay k22
• Battery
• Ecm housing (left front of engine compt)
• Engine coolant fan
• Engine coolant fan resistor (below battery)
• Fan control relay k26
• Fan control relay k28
• Fan control relay k52
• Fan control relay k67
• Fan control relay k87
• Fuse 40 30a
• Fuse 42 40a
• Fuse 50 10a
• Fuse 52 30a
• G100 (left front of engine compt)
• G103
• G103 (left front of engine compt)
• Of engine compt)
• Red
• S108
• S109
• S111
• S112
• S113
• S114
• S115
• S116
• S117
• S118
• S125
• S137
• Temperature switch 1 (upper left side of radiator)
• Temperature switch 2 (in lower left side of radiator)
• Test connector
• Y red

Compressor Wiring Diagram for Cadillac Catera 1999

List of elements for Compressor Wiring Diagram for Cadillac Catera 1999:

• (i/p harn, near dlc breakout)
• A/c compressor clutch coil
• A/c compressor clutch diode
• A/c compressor refrigerant pressure switch (left front of engine compt)
• A/c compressor relay
• A/c cutout
• A/c load switch (left front of eng compt)
• A/c request
• A/c request output
• A/c request signal
• Bp900
• C1 fm8
• Cooling fans system
• Ecm housing (left front of engine compt)
• Engine control module
• Fm340
• Fp120
• Fuse block
• G103 (left front of engine compt)
• Heater and a/c control
• Heater blower fuse 33 30a
• Hot at all times
• Hot in on or start
• O/s mirror fuse 13 10a
• Red
• Relay control
• S110 (a/c harn, left front of engine compartment)
• S160 (a/c harn, in ecm housing)
• Temperature switch 2 (in lower left side of radiator)
• Transmission controls system
• Xy360