412-00-24 Climate Control System — General Information 412-00-24
DIAGNOSIS AND TESTING (CONTINUED)
CONDITIONS
DETAILS/RESULTS/ACTIONS
C10: CHECK THE COMMON CIRCUIT FOR HEATER BLOWER; LOWER SPEEDS
1.
2.
Heater blower se-
ries resistor C90
3.
4 Measure the voltage between heater blower
series resistor, connector C90, pin 1, circuit
31S-CA18A (BK/RD), harness side and
ground.
• Is battery voltage indicated?
Yes
GO TO C11
No
REPAIR the open circuit(s) between heater
blower motor and heater blower series re-
sistor by using the wiring diagrams. TEST
the system for normal operation.
C11: CHECK THE CIRCUIT FOR HEATER BLOWER, MEDIUM SPEED
1.
2 Measure the resistance between heater blower
series resistor, connector C90, pin 4, circuit
31S-CA32 (BK/BU), harness side and heater
blower switch, connector C72, pin 1, circuit,
31S-CA32 (BK/BU), harness side.
• Is the resistance less than 2 ohms?
Yes
CHECK the heater blower series resistor;
INSTALL a new one if necessary. TEST the
system for normal operation.
No
REPAIR the open circuit(s) between heater
blower series resistor 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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