Chrysler PT Cruiser 2001 Service Manual Supplement page 2595

P0500-NO VEHICLE SPEED SIGNAL —
TEST
3 Turn the ignition off.
Disconnect the PCM harness connector(s).
Disconnect the Vehicle Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Vehicle Speed Sensor Ground circuit.
Is the resistance above 5.0 ohms?
Yes → Repair the Vehicle Speed Sensor Ground circuit for an open.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the PCM harness connector(s).
Disconnect the Vehicle Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Vehicle Speed Signal circuit between the PCM
connector and the VSS connector.
Is the resistance above 5.0 ohms?
Yes → Repair the Vehicle Speed Signal circuit for an open.
→ Go To 5
No
5 Remove the Vehicle Speed Sensor.
Inspect the Speedometer Pinion Gear.
Is the Pinion Gear damaged?
Yes → Repair as necessary in accordance with the Service Information.
→ Go To 6
No
6 Turn the ignition off.
Disconnect the PCM harness connector(s).
Disconnect the Vehicle Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the Vehicle Speed Signal circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the Vehicle Speed Signal circuit for a short to ground.
→ Go To 7
No
7 Turn the ignition off.
Disconnect the Vehicle Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Vehicle Speed Signal circuit in the Vehicle Speed Sensor
harness connector.
Is the voltage above 9.0 volts?
Yes → Repair the Vehicle Speed Signal circuit for a short to voltage.
→ Go To 8
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
Continued
135
APPLICABILITY
All
All
All
All
All