Mazda MX-6 1998, Workshop Manual

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CONTROL SYSTEM
Terminal
Signal Connection Test condition
Voltage (V)/
Continuity
Inspection area
2B GND
Air mix actuator
Constant: Check for continuity to
ground
Yes —
2C Motor drive
Air mix actuator
Moving to HOT
0.6
Air mix actuator
Moving to COLD 10.7
2D
Potentiometer
input
Air mix actuator
Airflow temperature mode at MAX
HOT
4.3
Air mix actuator
Airflow temperature mode at MAX
COLD
0.6
2F
Motor drive Air mix actuator
Moving to COLD
0.6
Air mix actuator
Moving to HOT
10.7
2H Motor drive
Airflow mode
actuator
Moving to VENT
10.6
Airflow mode actuator
Moving to DEFROSTER 0.7
2I Motor drive
Airflow mode
actuator
Moving to DEFROSTER 10.6
Airflow mode actuator
Moving to VENT 0.7
2J GND GND
Constant: Check for continuity to
ground
Yes —
2K Power supply
ROOM 15 A
fuse
Constant
B+ ROOM 15 A fuse
2L IG2
A/C 10 A fuse
IG SW at ON
B+
A/C 10 A fuse
IG SW at LOCK or ACC 0
FAN SWITCH REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the heater control unit. (Refer to 07-40
HEATER CONTROL UNIT
REMOVAL/INSTALLATION.)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
W 6 U 7 4 0 W A Z
W 6 U 7 4 0 W 2 1
1 Knob
2 Nut
3 Washer
4 Fan switch
0 7 -4 0 -1 5