Dtc P0502 Vehicle Speed No Signal (M/T Only) - Daewoo CIELO EURO III Manual

1F – 330 ENGINE CONTROLS
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Step
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Perform an On-Board Diagnostic (EOBD) System
Check.
1
Is the system check complete?
Notice: Running the vehicle in gear with the wheels
hanging down at full travel will damage the drive
axles.
1. Turn the ignition ON, with the engine OFF.
2. Install a scan tool.
2 3. Raise the drive wheels.
4. Support the lower control arms so that the drive
axles are in a horizontal (straight) position.
5. Allow the engine to idle in gear.
Does the scan tool display vehicle speed above the
specified value?
1. Turn the ignition ON, with the engine OFF.
2. Review the Freeze Frame data and note the
parameters.
3
3. Operate the vehicle within the Freeze Frame
conditions and Conditions for Setting this DTC.
Does the scan tool display the vehicle speed above
the specified value?
1. Turn the ignition OFF.
2. Disconnect the Vehicle Speed Sensor (VSS)
connector.
3. Turn the ignition ON, with the engine OFF.
4
4. Using a Digital Voltmeter (DVM) connected to
ground, measure the voltage in the VSS signal
circuit, at terminal B.
Is the voltage near the specified value?
Using a DVM, measure the voltage at terminal C of
the VSS harness connector.
5
Is the voltage near the specified value?
Using a DVM, measure the resistance at terminal A
of the VSS harness connector.
6
Is the resistance near the specified value?
Check the VSS signal circuit for an open or short to
ground and repair as necessary.
7
Is the repair complete?
Check the ignition circuit for an open and repair as
necessary.
8
Is the repair complete?
Check the VSS ground circuit for an open and repair
as necessary.
9
Is the repair complete?
1. Turn the ignition OFF.
10 2. Replace the VSS.
Is the repair complete?
1. Turn the ignition OFF.
11 2. Replace the ECM.
Is the repair complete?

DTC P0502 Vehicle Speed No Signal (M/T Only)

Action
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Value(s) Yes
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Go to Step 2
0 mph Go to Step 3
0 mph Go to Step 12
10.1 volts Go to Step 5
11-14 volts Go to Step 6
0.4k : Go to Step 10
–
Go to Step 12
–
Go to Step 12
–
Go to Step 12
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Go to Step 12
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Go to Step 12
Á Á Á Á Á Á
No
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Go to
"On-Board
Diagnostic
System Check"
Go to Step 4
Go to Step 4
Go to Step 7
Go to Step 8
Go to Step 9
Go to Step 11
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DAEWOO T-154 BL2,3