Mazda MX-5 Miata Sport 2007 Manual page 1737

2007 ACCESSORIES & BODY, CAB Symptom Troubleshooting (Power Retractable Hardtop) - MX-5 Miata
poor connection?
22 INSPECT ROOF MOTOR
Inspect the both side roof motor hall

sensors on both side. (See ROOF
MOTOR INSPECTION .)
Are both roof motors normal?

23 INSPECT ROOF MOTOR HALL
SENSOR
Measure the pulse profiles for the

following power retractable hardtop
control module (24-pin) while the
roof is operating using the
oscilloscope.
Terminal 1I (right side roof

motor hall sensor)
Terminal 1M (left side roof

motor hall sensor)
Is the pulse profile normal? (See

POWER RETRACTABLE
HARDTOP CONTROL MODULE
INSPECTION .)
24 INSPECT POWER RETRACTABLE
HARDTOP LINK MECHANICS
Inspect the roof link mechanics.

Does the roof operation stop during

open or close operation?
25 INSPECT POWER RETRACTABLE
HARDTOP SWITCH
Remove the power retractable hardtop

switch.
Measure the resistance between

power retractable hardtop switch
connector (component side) terminals
A and F.
Is the resistance normal?

Power retractable hardtop (open) switch
pressed: 0.99-1.01 kohms
Power retractable hardtop (close) switch
2007 Mazda MX-5 Miata Sport
Yes
No
Yes
No
Yes
No
Yes
No
Go to the next step.
Replace the suspected roof motor. (See
ROOF MOTOR
REMOVAL/INSTALLATION .)
Go to the next step.
Replace the suspected roof motor. (See
ROOF MOTOR
REMOVAL/INSTALLATION .)
Repair or replace the malfunctioning part.
Go to the next step.
Go to the next step.
Replace the power retractable hardtop
switch. (See POWER RETRACTABLE
HARDTOP SWITCH
REMOVAL/INSTALLATION .)