Daewoo Matiz (2003 year). Manual - part 144

ANTILOCK BRAKE SYSTEM 4F – 25

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 “Front Wheel Speed Sensor” in this
section.

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 0404 – Right Front Wheel Speed Sensor Circuit Open or Shorted

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Step

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Action

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Value(s)

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Yes

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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 12 and 13 of
connector on the EBCM harness.

Is the resistance within the specified value?

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1.0 k

1.5 k

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Go to Step 4

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Go to Step 2

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1. Disconnect the harness from the right front wheel

speed sensor.

2. Use a DVM to measure the resistance between

terminals 1 and 2 of the right front wheel speed
sensor connector.

Is the resistance within the specified value?

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1.0 k

1.5 k

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Go to Step 4

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Go to Step 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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Use a DVM to measure the resistance between ter-
minal 12 of the EBCM harness connector, and termi-
nal 1 of the right front wheel speed sensor harness
connector.
Is the resistance within the specified value?

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less than 1

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Go to Step 6

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Go to Step 5

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1. Repair the high resistance in circuit DK GRN/

BLK.

2. If the wheel speed sensor harness is damaged,

replace it.

Is the repair complete?

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–

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System OK

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–

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Use a DVM to measure the resistance between ter-
minal 13 of the EBCM harness connector, and termi-
nal 2 of the right front wheel speed sensor harness
connector.
Is the resistance within the specified value?

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less than 1

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Go to Step 8

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Go to Step 7

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1. Repair the high resistance in circuit BRN/

DK GRN.

2. If the wheel speed sensor harness is damaged,

replace it.

Is the repair complete?

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–

ÑÑÑÑÑÑÑ

System OK

ÑÑÑÑÑÑ

–

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ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Use a DVM to measure the resistance between
ground and terminal 12 of the EBCM connector.
Does the DVM show the specified value?

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Go to Step 10

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Go to Step 9

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Repair the short to ground in circuit DK GRN/BLK.
Is the repair complete?

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–

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System OK

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–

4F – 26 ANTILOCK BRAKE SYSTEM

DTC 0404 – Right Front Wheel Speed Sensor Circuit Open or Shorted (Cont’d)

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Step

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Action

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Value(s)

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Yes

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Use a DVM to measure the resistance between
ground and terminal 13 of the EBCM connector.
Does the DVM show the specified value?

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Go to Step 12

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Go to Step 11

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Repair the short to ground in circuit BRN/DK GRN.
Is the repair complete?

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–

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System OK

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–

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1. Reconnect all of the connectors.
2. Turn the ignition to ON.
3. Use a DVM to measure the voltage between

ground and terminal 12 of EBCM connector.

Is the voltage within the specified value?

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0 v

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Go to Step 14

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Go to Step 13

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Repair the short to voltage in circuit DK GRN/BLK.
Is the repair complete?

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–

ÑÑÑÑÑÑÑ

System OK

ÑÑÑÑÑÑ

–

ÑÑÑÑ

ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ

Use a DVM to measure the voltage between ground
and terminal 13 of EBCM connector.
Is the voltage within the specified value?

ÑÑÑÑÑ

0 v

ÑÑÑÑÑÑÑ

Go to Step 16

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Go to Step 15

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Repair the short to voltage in circuit BRN/DK GRN.
Is the repair complete?

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–

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System OK

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–

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Replace the EBCM.
Is the repair complete?

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–

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System OK

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–

ANTILOCK BRAKE SYSTEM 4F – 27

BLANK

4F – 28 ANTILOCK BRAKE SYSTEM

D17E302A

DIAGNOSTIC TROUBLE CODE (DTC) 0405

RIGHT FRONT WHEEL SPEED SENSOR POOR

AIR GAP OR MISSING TOOTH RING

Circuit Description

As a toothed ring passes by the wheel speed sensor,
changes in the electromagnetic field cause the wheel
speed sensor to produce a sinusoidal (AC) voltage sig-
nal whose frequency is proportional to the wheel speed.
The magnitude of this signal is directly related to wheel
speed and the proximity of the wheel speed sensor to
the toothed ring often referred to as the air gap.

Diagnosis

This test checks for the right front wheel speed equal to
0 km/h (0 mph) for greater than 6 km/h (3.8 mph).

Cause(s)

The tooth ring is missing.

The air gap exceeds the required specifications.

Fail Action

This is a critical operational fault. The ABS is disabled
and the ABS warning lamp is turned on. The proportion-
ing is operation.

Diagnostic Aids

An ‘‘intermittent’’ malfunction may be caused by a poor
connection, rubbed through wire insulation, or a wire
that is broken inside the insulation.

Thoroughly check any circuitry suspected of causing the
intermittent complaint. Look for backed out terminals,
improper mating, broken locks, improperly formed or
damaged terminals, poor terminal to wiring connections,
or physical damage to the wiring harness.

Wheel speed sensor resistance will increase as the sen-
sor temperature increases.

When replacing a wheel speed sensor, inspect the sen-
sor terminals and harness connector for corrosion and/
or water intrusion. If evidence of corrosion or water
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

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