Mazda MX-5 Miata Sport 2007 Manual page 978

2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
1BD Ground
1BE B+
Drive-by-
1BF wire relay
control
1BG -
1BH Ground
Throttle
control (+)
2A
2B Throttle
control (-)
2C Purge control Purge
2D -
2E OCV control OCV
2007 Mazda MX-5 Miata Sport
Ground Under any condition
Ignition switch off
Ignition switch is turned to
Main relay
the ON position
Ignition
Drive-by- switch is
wire relay turned to the
ON position
-
Ground Under any condition
Throttle body
Inspect using the wave profile.

(Throttle
valve
(See INSPECTION USING AN
actuator)
OSCILLOSCOPE
(REFERENCE) .)
Throttle body
Inspect using the wave profile.

(Throttle
valve
(See INSPECTION USING AN
actuator)
OSCILLOSCOPE
(REFERENCE) .)
Inspect using the wave profile.

solenoid
valve
(See INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE) .)
-
Inspect using the wave profile.

(See INSPECTION USING AN
OSCILLOSCOPE
(REFERENCE) .)
Below 1.0
Below 1.0
B+
Drive-by- Below 1.0
wire system
is
malfunction
Drive-by- B+
wire system
is normal
- -
Below 1.0
- -
Related

wiring
harness
Main relay

Related

wiring
harness
Drive-by-

wire relay
Related

wiring
harness
-
Related

wiring
harness
Throttle

valve
actuator
Related

wiring
harness
Throttle

valve
actuator
Related

wiring
harness
Purge

solenoid
valve
Related

wiring
harness
-
OCV

Related

wiring
harness