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Home >> Toyota >> 2001 >> 4Runner Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0500: Vehicle Speed Sensor Circuit >> Diagnosis & Repair
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Diagnosis & Repair

  1. Test drive vehicle and check operation of speedometer. If speedometer operates properly, go to next step. If speedometer does not operate properly, repair speedometer as necessary. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. Speedometer may not operate, as input signal from VSC ECU may not be input to instrument cluster.
  2. Remove glove box for access to ECM with electrical connectors still installed on ECM. See Figure. Raise and support vehicle with one rear wheel off the ground. Place transmission in Neutral.
  3. Disconnect electrical connector E14 at ECM. See Figure. Turn ignition on. Using voltmeter, check voltage between body ground and terminal No. 6 (Green/Orange wire) at ECM electrical connector E14 while rotating rear wheel. See Figure. This is the SP1 terminal on ECM. Voltage should pulse between zero volts and 4-6 volts. If voltage is within specification, replace ECM. If voltage is not within specification, repair open or short in Green/Orange wire and electrical connectors between ECM and instrument cluster. See WIRING DIAGRAMS article.
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