DIAGNOSTIC PROCEDURE
DTC C1148, C1158, C1168, C1178 DIAGNOSTIC PROCEDURE TABLE
wheels indicate abnormal
acceleration that exceeds
specification.
Vehicle wheel speed signals
of any of the four vehicle
wheels indicate speed that
exceeds specification.
POSSIBLE CAUSE
ABS wheel-speed sensor
malfunction (low output,
metal shavings on sensor)
ABS sensor rotor
malfunction (chipping of
sensor rotor teeth)
Poor installation of ABS
wheel-speed sensor and/or
sensor rotor (If the sensor
rotor is installed at an angle,
it may cause output of
abnormal wave pattern at
high speeds.)
Excessive clearance
between the ABS wheel-
speed sensor and sensor
rotor
STEP
INSPECTION
ACTION
1
INSPECT PID FOR
ABNORMAL OUTPUT
FROM ABS WHEEL-
SPEED SENSOR USING
M-MDS
Turn the ignition
switch off.
Connect the M-MDS
to the DLC-2.
Select the following
PIDs using the M-
MDS:
LF_WSPD
Yes
Go to Step 4.
No
If there is a difference in speeds of the
four wheels, 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
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