(4) If the ATC in-car temperature sensor (fault 26)
is verified to be bad, then the ATC control section of
the assembly must be replaced. If the ATC in-car
sensor does not pass the paper test, then the problem
may only be with the ATC In-Car Sensor Fan-Motor
assembly.
(5) Remove the fan-motor assembly from the ATC
control with two screws located on the back of the
ATC control.
(6) Replace only the fan-motor assembly if control
does not pass the paper test, but passes with no fault
code 26 (bad thermistor).
NOTE: Retest control. If ATC control still fails the
paper test, then replace the ATC control and the
fan-motor assembly. The ATC Control must be
replaced if the part fails fault code 26 (after confirm-
ing proper wiring connections).
INSTALLATION
For installation, reverse the above procedures.
BLOWER MOTOR AND WHEEL ASSEMBLY
The blower motor is located on the right side of the
heater housing. The blower motor and the blower
motor wheel must be replaced as an assembly.
REMOVAL
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post
(Fig. 13).
(2) Remove lower right under panel duct.
(3) Remove blower motor connector from resistor
block/power module.
(4) Squeeze blower motor wiring grommet and
push grommet through blower motor housing cover.
(5) Remove blower motor housing cover.
(6) Remove blower motor retaining screws.
(7) Lower blower motor from housing.
INSTALLATION
For installation, reverse the above procedures.
BLOWER MOTOR POWER MODULE
REMOVAL
The Blower Motor Power Module is used on ATC
systems only.
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post
(Fig. 13).
(2) Remove lower right underpanel silencer/duct.
(3) Disconnect wiring connectors on blower motor
resistor.
(4) Remove blower motor resistor retaining screws.
(5) Pull blower motor resistor out of heater hous-
ing.
INSTALLATION
For installation, reverse the above procedures.
BLOWER MOTOR RESISTOR
REMOVAL
The Blower Motor Resistor is used on manual
Heater-A/C systems only.
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post
(Fig. 13).
(2) Remove lower right underpanel silencer/duct.
(3) Disconnect wiring connectors on blower motor
resistor.
(4) Remove blower motor resistor retaining screws.
(5) Pull blower motor resistor out of heater hous-
ing.
INSTALLATION
For installation, reverse the above procedures.
BLOWER MOTOR WHEEL
The blower motor wheel is only serviced with the
blower motor. The wheel and the motor are balanced
as an assembly. If the blower motor wheel requires
replacement, the blower motor must also be replaced.
Refer to blower motor for replacement procedure.
COMPRESSOR
The A/C compressor may be unbolted and reposi-
tioned without discharging the refrigerant system.
Discharging is not necessary if removing the com-
pressor clutch/coil assembly, engine, cylinder head, or
alternator.
WARNING: REFRIGERANT PRESSURES REMAIN
HIGH EVEN THOUGH THE ENGINE MAY BE
TURNED OFF. DO NOT TWIST OR KINK THE
REFRIGERANT LINES WHEN REMOVING A FULLY
CHARGED COMPRESSOR. SAFETY GLASSES
MUST BE WORN.
Fig. 15 ATC In-Car Temperature Sensor
1 – ATC IN-CAR TEMPERATURE SENSOR
24 - 18 HEATING AND AIR CONDITIONING LH
REMOVAL AND INSTALLATION (Continued)
To Next Page
Loading...
