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STEP
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INSPECTION
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ACTION
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to next step.
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No
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Record FREEZE FRAME DATA on repair order, then go to next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to next step.
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No
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Go to next step.
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3
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VERIFY PCM VSS PID FOR INPUT SIGNAL
• Start the engine and idle in neutral.
• Access the VSS PID with a WDS or equivalent and observe for vehicle speed input to the PCM
• Increase the engine speed, not greater than 2,000 rpm, several times while observing the VSS PID.
• Is the reading on the VSS PID less than 5 km/h {3 mph}?
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Yes
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Go to Step 5.
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No
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Repair or replace the harness between PCM and VSS then go to next step.
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4
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INSPECT VSS
• Inspect the VSS.
• Is there any malfunction?
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Yes
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Replace VSS, then go to next step.
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No
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Go to next step.
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5
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VERIFY TROUBLESHOOTING OF DTC P1501 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory using WDS or equivalent.
• Start engine.
• Is same DTC present?
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Yes
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Replace PCM, then go to next step.
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No
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Go to next step.
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6
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VERIFY AFTER SERVICE PRECAUTION
• Perform "AFTER SERVICE PRECAUTION".
• Is there any DTC present?
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Yes
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Go to applicable DTC inspection.
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No
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Troubleshooting completed.
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