ANTILOCK BRAKE SYSTEM 4F–39
DAEWOO M-150 BL2
intrusion exists, replace the wheel speed sensor har-
ness. If replacing a wheel speed sensor harness, in-
spect the sensor terminals. If you find evidence of
corrosion or water intrusion, replace the wheel speed
sensor. Refer to “Rear Wheel Speed Sensor” in this sec-
tion.
Important: Wheel speed sensor intermittent malfunc-
tions may be difficult to locate. Take care not to disturb
any electrical connections before performing an indi-
cated step of this table. That will ensure that an intermit-
tent connection will not be corrected before the source
of the malfunction is found.
DTC 0456 – Left Rear Wheel Speed Sensor Circuit Intermittent Shorted
Step
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Action
Value(s)
Yes
No
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1
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1. Turn the ignition switch to OFF.
2. Disconnect the EBCM harness connector from
the EBCM.
3. Use a digital voltmeter (DVM) to measure the
resistance between terminals 22 and 23 of
connector on the EBCM harness.
Is the resistance within the specified value?
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1.0 k to
1.5 k
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Go to Step 4
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Go to Step 2
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2
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1. Disconnect the harness from the left rear wheel
speed sensor.
2. Use a DVM to measure the resistance between
terminals 1 and 2 of the left rear wheel speed
sensor connector.
Is the resistance within the specified value?
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1.0 k to
1.5 k
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Go to Step 4
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Go to Step 3
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3
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Replace the wheel speed sensor.
Is the repair complete?
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–
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System OK
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–
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4
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Use a DVM to measure the resistance between
ground and terminal 22 of the EBCM connector.
Does the DVM show the specified value?
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1
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Go to Step 6
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Go to Step 5
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5
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Repair the short to ground between terminal 7 of the
connector C202 and terminal 22 of the EBCM con-
nector.
Is the repair complete?
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–
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System OK
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–
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6
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Use a DVM to measure the resistance between
ground and terminal 7 of the connector C202.
Does the DVM show the specified value?
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1
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Go to Step 8
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Go to Step 7
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7
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Repair the short to ground between terminal 7 of the
connector C202 and terminal 2 of the left rear wheel
speed sensor harness connector.
Is the repair complete?
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–
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System OK
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–
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8
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Use a DVM to measure the resistance between
ground and terminal 23 of the EBCM connector.
Does the DVM show the specified value?
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1
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Go to Step 10
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Go to Step 9
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9
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Repair the short to ground between terminal 14 of
the connector C202 and terminal 23 of the EBCM
connector.
Is the repair complete?
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–
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System OK
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–
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10
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Use a DVM to measure the resistance between
ground and terminal 14 of the connector C202.
Does the DVM show the specified value?
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1
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Go to Step 12
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Go to Step 11