1BD
Ground
Ground
Under any condition
Below 1.0
Related
wiring
harness
1BE
B+
Main relay
Ignition switch off
Below 1.0
Main relay
Related
wiring
harness
Ignition switch is turned to
the ON position
B+
1BF
Drive-by-
wire relay
control
Drive-by-
wire relay
Ignition
switch is
turned to the
ON position
Drive-by-
wire system
is
malfunction
Below 1.0
Drive-by-
wire relay
Related
wiring
harness
Drive-by-
wire system
is normal
B+
1BG
-
-
-
-
-
1BH
Ground
Ground
Under any condition
Below 1.0
Related
wiring
harness
2A
Throttle
control (+)
Throttle body
(Throttle
valve
actuator)
Inspect using the wave profile.
(See
INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE)
.)
Throttle
valve
actuator
Related
wiring
harness
2B
Throttle
control (-)
Throttle body
(Throttle
valve
actuator)
Inspect using the wave profile.
(See
INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE)
.)
Throttle
valve
actuator
Related
wiring
harness
2C
Purge control Purge
solenoid
valve
Inspect using the wave profile.
(See
INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE)
.)
Purge
solenoid
valve
Related
wiring
harness
2D
-
-
-
-
-
2E
OCV control OCV
Inspect using the wave profile.
(See
INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE)
.)
OCV
Related
wiring
harness
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 13
© 2005 Mitchell Repair Information Company, LLC.