GROUND FOR OPEN
CIRCUIT
Turn the ignition
switch off.
Inspect for continuity
between ABS HU/CM
terminal A (harness-
side) and ground.
Is there continuity?
No
Repair or replace the wiring harness for
open circuit between ABS HU/CM
terminal A and ground, then go to Step
5.
4
VERIFY PUMP MOTOR
OPERATION
Turn the ignition
switch off.
Connect the M-MDS
to the DLC-2.
Turn the ignition
switch to the ON
position (engine off).
Access PMP_MOTOR
active command
modes using M-MDS.
Does the pump motor
operate?
Yes
Go to the next step.
No
Replace the ABS HU/CM, then go to
the next step.
(See
ABS HU/CM
REMOVAL/INSTALLATION
.)
5
VERIFY
TROUBLESHOOTING
COMPLETED
Make sure to
reconnect all
disconnected
connectors.
Clear the DTC from
the memory.
(See
CLEARING
DTCS
PROCEDURES
.)
Start the engine and
drive the vehicle at
10
km/h {6.2 mph} or
more.
Gradually slow down
and stop the vehicle.
Yes
Replace the ABS HU/CM, then go to
the next step.
(See
ABS HU/CM
REMOVAL/INSTALLATION
.)
No
Go to the next step.
2007 Mazda MX-5 Miata Sport
2007 BRAKES On-Board Diagnostic (ABS) - MX-5 Miata
Microsoft
Thursday, July 09, 2009 3:17:55 PM
Page 18
© 2005 Mitchell Repair Information Company, LLC.