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MPI - Troubleshooting 13A-43 Code No. P0500 Vehicle speed sensor system Probable cause Inspection Range Ignition switch: ON D After 2 seconds from setting ignition switch to ON position or completion of engine starting D The engine speed is approximately 2,000 - 4,000 r/min or more. D The volumetric efficiency is 60 - 80%. Evaluation Conditions Vehicle speed signal does not change for 2 seconds. (Pulse signal is not input.) D Vehicle speed sensor malfunction D Vehicle speed sensor circuit disconnection, short-circuit, or connector contact defect D Engine-ECU malfunction NG Replace the engine-ECU. OK Check the trouble symptoms. OK Intermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions.) NG Check the following connectors: B-03, C-115 NG Replace the engine-ECU. OK Check the trouble symptoms. YES Measure at the C-115 engine-ECU connector. Connect the connector. D Voltage between terminal No. 86 and earth (Ignition switch: ON) OK: When vehicle is pushed and moved, repeatedly varies between 0 and 5 V. OK Check the following connector: C-115 NG Repair Is speedometer normal? NO Check the vehicle speed sensor. (Refer to GROUP 54 - Combination Meter.) NG Repair |