SERVICE BRAKES
Anti-lock Braking System Troubleshooting
Check flow connected with wheel speed
sensor
NOTE:
When checking with an oscilloscope, first measure voltage
variations in the wheel speed sensor output. (Refer to
Is the resistance value of the wheel speed
Malfunction of wheel speed .
Replace wheel speed
sensor part, which the displayed
sensor
sensor.
trouble code indicates, normal?
Standard value:
Yes
Is the resistance value with the ECU
Harness wire for wheel
connector normal?
speed
sensor circuit
is
Standard value:
1.2
broken.
I
Repair harness.
Is the standard value for the
g a p b e t w e e n t h e w h e e l
speed sensor and rotor,
which the output diagnostic
trouble
code
indicates,
within the range?
value:
mm
Yes
Yes
Check the output of each
wheel speed sensor with an
oscilloscope, including the
wave form. (Refer to mea-
surement of wheel speed
sensor output voltage varia-
tions on
Is the out-
put voltage for each wheel
speed
sensor
o v e r
standard value and is the
wave form normal?
Yes
C a n t h e a b n o r m a l i t y b e
found even if the sensor
harness and connection be-
tween sensor harness and
body harness are bent and
stretched?
No
R e c h e c k i f b e l o w t h e
standard value or if the
sensor has a poor wave
form. Replace sensor or
rotor.
TSB Revision
Summary of Contents for 1989 Galant
Page 2: ......
Page 4: ...00 z NOTES ...
Page 274: ...13 132 NOTE ...
Page 586: ...NOTES ...
Page 650: ...NOTE ...
Page 664: ...NOTES ...
Page 688: ...NOTES ...
Page 690: ......
Page 692: ......
Page 694: ......
Page 696: ......
Page 698: ......
Page 700: ...c ...
Page 702: ......
Page 704: ......
Page 706: ......
Page 708: ......
Page 710: ......
Page 712: ......
Page 714: ......
Page 716: ......
Page 718: ......
Page 720: ......
Page 722: ......
Page 724: ......
Page 729: ...23 23 NOTES ...
Page 860: ...NOTES ...
Page 921: ...NOTES ...
Page 948: ...33B 9 NOTES ...
Page 1121: ...NOTES ...
Page 1200: ...SERVICE BRAKES Brake Pedal 35 79 Lubrication points Part A 14AO256 1 14UOO5l TSB Revision ...
Page 1273: ...NOTES t ...