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
GO TO C7
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
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