High Blower R E S I S T O; Pressure Cycling S W I T C - Pontiac Fiero 1988 Service Manual

AIR CONDITIONING 1B-27
1.
2.
4. Blower motor attaching screws.
5. Cooling tube.
6. Electrical connection.
7. Negative ( — ) battery cable.
j j y j Inspect
Check motor for proper operation.
HIGH BLOWER RELAY
Remove or Disconnect
Negative ( —) battery cable.
Electrical connection.
High blower relay.
Install or Connect
High blower relay.
Electrical connection.
Negative ( - ) battery cable.
Inspect
Blower for proper operation.
A/C
POWER
SWITCHING RELAY
Remove or Disconnect
Negative ( - ) battery cable.
Electrical connection.
A/C power switching relay.
Install or Connect
A/C power switching relay.
Electrical connection.
Negative ( —) battery cable.
1.
2.
3.
" t i l
1.
2.
3.
1.
2.
3.
BLOWER RESISTOR
l * * ! Remove or Disconnect
•i
1. Negative ( —) battery cable.
2. Electrical connection.
3. Two screws.
4. Blower resistor.
Install or Connect
1. Blower resistor.
2. Two screws.
3. Electrical connection.
4. Negative ( —) battery cable.
inspect
Blower motor for proper operation in all
speeds.
1 - A / C POWER SWITCHING R E L A Y
2 - BOLT/SCREW
3 - R E L A Y B R A C K E T
4 - A/C HIGH BLOWER R E L A Y
5 - RESISTER ASM.
6 - A/C HEATER MODULE ASM.
520241-1B
Figure 26 A/C Power Switching — High Blower Relay
and Resistor
PRESSURE CYCLING SWITCH
(VIN 9 Only)
i ^ J Remove or Disconnect
1. Negative ( —) battery cable.
2. Electrical connection at switch.
3. Switch from accumulator.
Install or Connect
1. Switch at accumulator.
2. Electrical connection at switch.
3. Negative ( - ) battery cable.
COMPRESSOR HIGH P R E S S U R E CUT-OFF
OR COOLING FAN SWITCH
Remove or Disconnect
1. Negative ( —) battery cable.
2. Discharge system.
3. Raise vehicle.
4. Rear compressor mounting bracket.
5. Retaining ring. (See Section ID.)
6. Switch.
7. Discard O-ring.