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412-00-22
Climate Control System — General Information
412-00-22
DIAGNOSIS AND TESTING (
CONTINUED
)
CONDITIONS
DETAILS/RESULTS/ACTIONS
C5: CHECK THE HEATER BLOWER MOTOR
1
.
2
Turn the heater blower switch to HIGH SPEED
position
3
Measure the resistance between heater blower
switch, connector C53, pin 2, circuit 31S-CA18
(BK/RD), harness side and ground.
• Is the resistance less than 2 ohms?
Yes
CHECK the heater blower motor; INSTALL
a new one if necessary. TEST the system
for normal operation.
No
GO TO
C6
C6: CHECK THE CIRCUIT 31S-CA18 (BK/RD) FOR OPEN
1
.
Heater blower
switch C72
2
Measure the resistance between heater blower
motor, connector C53, pin 2, circuit 31S-CA18
(BK/RD), harness side and heater blower
switch, connector C72, pin 4, circuit 31S-CA33
(BK/OG), harness side.
• Is the resistance less than 2 ohms?
Yes
No
REPAIR the open circuit(s) between heater
blower motor and heater blower switch by
using the wiring diagrams. TEST the system
for normal operation.
E9425 EN
07/2001 2002 Bantam