Daewoo Matiz (2003 year). Manual - part 65

 

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Daewoo Matiz (2003 year). Manual - part 65

 

 

1F – 170  ENGINE CONTROLS

MAA1F220

DIAGNOSTIC TROUBLE CODE (DTC) – P1382 ROUGH ROAD DATA INVALID

(ABS)

Circuit Description

The wheel speed sensor is used to detecting the road
situation.

As the wheel is rotated, the wheel speed sensor pro-
duces an AC voltage that increase with wheel speed.
The EBCM uses the frequency of the AC signal to calcu-
late wheel speed. The wheel speed sensor is connected
to EBCM by a “twisted pair” of wires. Twisting reduces
noise susceptibility than may cause a DTC to se.If the
wheel speed sensor detects a rough road condition, the
ECM misfire detection diagnostic will be de-activated.

Conditions for Setting the DTC

D

Vehicle speed is higher than 10km/h(6.21mph).

D

No Vehicle Speed Sensor error not set.

D

VR sensor output signal is higher than 0.26.

D

VR sensor output signal is not change for 30seconds.

Action Taken When the DTC Sets

D

The Malfunction Indicator Lamp (MIL) will not illumi-
nate.

D

The ECM will store conditions which were present
when the DTC was set as Failure Records data only.

D

This information will not be stored in the Freeze
Frame data.

Conditions for Clearing the MIL/DTC

D

A history DTC will clear after 40 consecutive warm-up
cycles without a fault.

D

DTC(s) can be cleared by using the scan tool.

D

Disconnecting the ECM battery feed for more than 10
seconds.

ENGINE CONTROLS  1F – 171

DTC P1382 – Rough Road Data Invalid (ABS)

Step

Action

Value(s)

Yes

No

1

Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Was the check performed?

–

Go to Step 2

Go to

“On-Board
Diagnostic

System Check”

2

1. Turn the ignition On, with engine OFF.
2. Install a scan tool to the Data Link Connector

(DLC).

3. Review and record the scan tool Failure Records

data.

4. Operate the vehicle within Failure Records

conditions as noted.

5. Using the scan tool, monitor specific Diagnostic

Trouble Code (DTC) info for DTC P1382.

Does the scan tool indicate that DTC P1382 failed?

–

Go to Step 4

Go to Step 3

3

1. Check for the following conditions and repair as

needed:

2. Wheel speed sensor seal missing or damaged.
3. Wheel speed sensor mounting flanges cracked,

missing, or incorrectly installed.

Is the repair complete?

–

Go to Step 14

Go to

“Diagnostic

Aids”

4

1. Turn the ignition OFF.
2. Disconnect the defected Wheel speed sensor

electrical connector.

3. Turn the ignition ON, with the engine OFF.
4. Observe the wheel speed sensor value displayed

on the scan tool.

Is the Wheel speed sensor value near the specified
value?

0V

Go to Step 5

Go to Step 12

5

1. Jumper the 5 volt reference circuit, the Wheel

speed sensor signal circuit, together at the
defected wheel speed sensor harness connector.

2. Observe the defected Wheel speed sensor value

displayed on the scan tool.

Is the wheel speed sensor value near the specified
value?

4.95V

Go to Step 6

Go to Step 7

6

1. Turn the ignition OFF.
2. Disconnect the Engine Control Module (ECM) and

check the sensor ground circuit for high
resistance, an open between the ECM and the
Wheel speed sensor, or for a poor connection of
the ECM and repair as needed.

Is the repair complete?

–

Go to Step 14

Go to Step 10

7

Check the 5 volt reference circuit for high resistance,
an open between the ECM and the wheel speed
sensor, or a poor connection of the ECM and repair
as needed.
Is the repair complete?

–

Go to Step 14

Go to Step 8

8

1. Turn the ignition OFF.
2. Disconnect the ECM and check the wheel speed

sensor signal circuit for high resistance, an open,
a low voltage, or a short to the sensor ground
circuit and repair as needed.

Is the repair complete?

–

Go to Step 14

Go to Step 9

1F – 172  ENGINE CONTROLS

DTC P1382 – Rough Road Data Invalid (ABS) (Cont’d)

Step

Action

Value(s)

Yes

No

9

Check the wheel speed sensor signal circuit for a
poor connection at the ECM and repair as needed.
Is the repair complete?

–

Go to Step 14

Go to Step 13

10

Check for a poor connection at terminal 3 of the
wheel speed sensor and repair as needed.
Is the repair complete?

–

Go to Step 14

Go to Step 11

11

Replace the wheel speed sensor.
Is the repair complete?

–

Go to Step 14

–

12

1. Turn the ignition OFF.
2. Disconnect the ECM.
3. Turn the ignition ON.
4. Check the wheel speed sensor signal circuit for a

short to voltage or a short to the 5 volt reference
circuit and repair as needed.

Is the repair complete?

–

Go to Step 14

Go to Step 13

13

1. Turn the ignition OFF.
2. Replace the ECM.
Is the repair complete?

–

Go to Step 14

–

14

1. Using the scan tool, clear the DTCs.
2. Start the engine and idle at normal operating

temperature.

3. Operate the vehicle within the conditions for

setting this DTC as specified in the supporting
text.

Does the scan tool indicate that this diagnostic ran
and passed?

–

Go to Step 15

Go to Step 2

15

Check if any additional DTCs are set.
Are any DTCs displayed that have not been
diagnosed?

–

Go to

Applicable DTC

table

System OK

ENGINE CONTROLS  1F – 173

BLANK

 

 

 

 

 

 

 

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