harness
1AT
IAT
MAF/IAT
sensor
Ignition
switch is
turned to the
ON position
IAT is 20°C
{68°F}
Approx. 2.4
IAT sensor
Related
wiring
harness
IAT is 60°C
{140°F}
Approx. 0.9
1AU
Refrigerant
pressure
switch (high,
low)
Refrigerant
pressure
switch (high,
low)
Ignition
switch is
turned to the
ON position
A/C
operating
Below 1.0
Refrigerant
pressure
switch
(high, low)
Related
wiring
harness
A/C not
operating
B+
1AV
APP sensor
No.2 ground
APP sensor
Under any condition
Below 1.0
Related
wiring
harness
1AW
B+
Main relay
Ignition switch off
Below 1.0
Main relay
Battery
Related
wiring
harness
Ignition switch is turned to
the ON position
B+
1AX
Drive-by-
wire relay
control
Drive-by-
wire relay
Under any condition
Below 1.0
Drive-by-
wire relay
Related
wiring
harness
1AY
Ignition
switch on
Ignition
switch
Ignition switch off
Below 1.0
Ignition
switch
Related
wiring
harness
Ignition switch is turned to
the ON position
B+
1AZ
Ground
Ground
Under any condition
Below 1.0
Related
wiring
harness
1BA
Back-up
power supply
Battery
(positive
terminal)
Under any condition
B+
Battery
Related
wiring
harness
1BB
Ground
Ground
Under any condition
Below 1.0
Related
wiring
harness
1BC
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2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:41:09 PM
Page 12
© 2005 Mitchell Repair Information Company, LLC.