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Home >> Toyota >> 1999 >> RAV4 Base, 2D Utility, AWD, Standard >> 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 is not operating correctly, repair speedometer as necessary. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. If speedometer is operating correctly, go to next step.
  2. Access ECM behind bottom center of instrument panel, in front of console. Raise and support one front wheel. Turn ignition on. Shift transaxle lever into Neutral. Using DVOM, backprobe ECM harness connector and measure voltage between ground and terminal No. 9 (Violet/White wire) at ECM harness connector E6. See Figure. Observe voltage reading while rotating front wheel. Voltage should pulse between zero volts and 4.5-5.5 volts. If voltage is as specified, replace ECM. If voltage is not as specified, repair open or short in wiring between instrument cluster and ECM. See appropriate wiring diagram in WIRING DIAGRAMS article.
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