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DTC P0500 VSS EC-983 [VG33E] C D E F G H I J K L M A EC Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- : Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) Diagnostic Procedure UBS00DMB 1. CHECK VEHICLE SPEED SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector and combination meter harness connector. 3. Check harness continuity between ECM terminal 29 and combination meter terminal 2. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 3. NG >> GO TO 2. 2. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors M81, F36 ● Harness for open or short between ECM and combination meter >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK SPEEDOMETER FUNCTION Make sure that speedometer functions properly. OK or NG OK >> GO TO 5. NG >> GO TO 4. 4. CHECK SPEEDOMETER CIRCUIT FOR OPEN AND SHORT Check the following. ● Harness connectors M59, F27 ● Harness connectors F43, F201 ● Harness for open or short between combination meter and vehicle speed sensor OK or NG OK >> Check combination meter and vehicle speed sensor. Refer to NG >> Repair open circuit or short to ground or short to power in harness or connectors. TER- MINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 29 G/B Vehicle speed sensor [Engine is running] ● Lift up the vehicle. ● Shift lever: 2nd (M/T), D (A/T) ● Vehicle speed is 40 km/h (25 MPH) 2 - 3V SEF996U Continuity should exist. |