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4JA1-TC/4JH1-TC ENGINE DRIVEABILITY AND EMISSIONS 6E–191 3 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “F1: Clear DTC Information” in “F0: Diagnostic Trouble Codes” with the Tech 2 and 3. Operate the vehicle and monitor the “F0: Read DTC Infor As Stored By ECU” in the “F0: Was the DTC P0500 (Symptom Code 1) stored in this — Go to Step 4 Refer to Diagnostic Aids and Go to Step 4 4 Perform test drive and check the speed meter. — Go to Step 5 Go to Step 6 5 Perform test drive and use the Tech 2. — Go to Step 14 Go to Step 7 6 Remove the VSS from the housing case and visually — Go to Step 8 Go to Step 7 7 Using the DVM and check the VSS signal. 1. Ignition “On”, vehicle “Run (lift up)”. 2. Measure the VSS output voltage at sensor, meter and ECM. Does the tester indicate specified value? If a oscilloscope is available, monitor the VSS signal at Refer to Diagnostic Aids and Go to Step 14 Refer the table Step Action Value(s) Yes No Measurement Position Voltage (V) (AC Range) If No Good VSS terminal 3 & GND Approximately 6.5 V at 20km/h Go to Step 8 Meter B23 connector 9 & Go to Step 9 Meter B23 connector 8 & Go to Step 11 ECM C56 connector 68 & Go to Step 12 Vehicle Speed Sensor Reference Wave Form 0V → Measurement Scale: 10V/div 50ms/div Measurement Condition: Vehicle Speed 20km/h |