DTC P0500-P0503
DTC P0500-P0503 |
Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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DTC Descriptors |
DTC P0500
Vehicle Speed Sensor Circuit
DTC P0501
Vehicle Speed Sensor Performance
DTC P0502
Vehicle Speed Sensor Circuit Low Voltage
DTC P0503
Vehicle Speed Sensor Circuit Intermittent
Circuit/System Description |
The transmission control module (TCM) provides the engine control module (ECM) vehicle speed information through the high-speed communication on the controller area network (CAN). Vehicle speed is obtained through the alternating current (AC) which is created by the sensor for the rotation speed (OSS) of the gearbox output shaft when the output shaft is rotating. The ECM continuously monitors the vehicle speed signal provided by the TCM.
Conditions for Running the DTC |
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Engine coolant temperature is more than 39.8°C (104°F).
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No engine coolant temperature DTC is set.
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No engine speed sensor DTC is set.
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The DTCs runs continuously when the above condition are met.
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Conditions for Setting the DTC |
P0500
The ECM detects the vehicle speed is less than 5 km/h (3 MPH) for more than 5 s.P0501
The ECM detects the CAN signal is not valid for more than 2 s.P0502
The ECM detects the actual vehicle speed is equal to the last vehicle speed for more than 10 s.P0503
The ECM detects the vehicle speed is greater than 275 km/h (171 MPH) for more than 0.2 s.Action Taken When the DTC Sets |
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DTCs P0500, P0502, and P0503 are Type B DTCs.
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DTC P0501 is a Type C DTC.
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Conditions for Clearing the DTC |
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DTCs P0500, P0502, and P0503 are Type B DTCs.
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DTC P0501 is a Type C DTC.
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Reference Information |
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Description and Operation
Transmission Component and System Description
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification |
1. |
Ignition On, observe the DTC information with a scan tool. Verify no TCM or communication DTCs are set.
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2. |
If any TCM or communication DTCs are set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
for further diagnosis.
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3. |
Raise the drive wheels.
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4. |
Support the lower control arms so that the drive axles are in a horizontal position. |
5. |
Engine running, place the transmission into 2nd gear.
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6. |
Observe the scan tool Vehicle Speed parameter. The following should display a similar vehicle speed once the drive wheels are at a speed above 5 km/h (3 MPH):
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The scan tool Vehicle Speed parameter
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The odometer value
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7. |
Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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8. |
If the DTC resets, replace the ECM.
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Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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ECM or TCM-Refer to
Control Module References
for replacement, setup and programming.
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Perform the
Transmission Adaptive Functions
.
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