Pontiac Fiero 1988 Service Manual page 39

1A-14 HEATING AND VENTILATION
1 - CARRIER ASSEMBLY
2 - CONTROL ASSEMBLY
520084-1A
Figure 15 Heater Control Mounting
ON-VEHICLE SERVICE PROCEDURES
HEATER CONTROL ASSEMBLY AND BLOWER
SWITCH
•
1.
2.
3.
4.
5.
6.
B
1.
2.
3.
4.
5.
6.
Remove or Disconnect
Negative battery cable.
Front pad assembly trim plate.
Three controller retaining screws.
Controller.
Electrical connection at switch.
Blower switch from controller.
Install or Connect
Blower switch.
Electrical connection at blower switch.
Controller.
Three controller retainer screws.
Front pad assembly trim plate.
Negative battery cable.
BLOWER MOTOR AND CAGE
F*l Remove or Disconnect
Negative battery cable.
1.
2.
3.
4.
5.
Cooling tube.
Wires at:
• Heater blower switch connection.
• Heater ground connection.
Five screws at heater motor.
Cage retaining screw, slide cage from motor
shaft.
1.
2.
3.
4.
5.
Install or Connect
Cage on motor shaft.
Heater motor.
Cooling tube.
Wires at:
• Heater blower switch console.
• Heater ground connection.
Negative battery cable.
TEMPERATURE CONTROL, POWER WENT,
HEATER DEFROST CABLE
Remove or Disconnect
1. R.H. grille and speaker.
2. Front console trim plate.
3. Three controller retaining screws.
4. Controller.
5. Controller cable at control.
6. Cable at heater module.
Install or Connect
1. Cables at heater module.
2. Cable at control.
3. Controller.
4. Controller retainer screws.
5. Front console trim plate.
6. R.H. speaker and grille.
Adjust
After installing and connecting control
and temperature cable, move temperature
lever to "HOT" in one quick, "CONTIN-
UOUS," firm motion until lever stops to
adjust cables.
HEATER CORE
Remove or Disconnect
Negative Battery cable.
Wires at:
• Heater, relay connection
• Resistor, heater blower
® Heater, blower switch connection
® Heater, ground connection
• Forward courtesy lamp socket (if
equipped)
Windshield washer fluid container.
Heater core inlet and outlet hoses.
Heater core grommets.
1.
2.
3.
4.
5.