DTC P0500: Vehicle Speed Sensor "A": Procedure
WARNING: This page is about a different variant/trim than selected.
- INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM)
- Remove the combination meter.
- Connect the oscilloscope to terminal E1-9 (+S) and body ground.
- Turn the ignition switch to ON.
- Turn the wheel slowly.
- Check the signal waveform according to the condition(s) in the table below.
Item Condition Tool setting 5 V/DIV., 20 ms/DIV. Vehicle condition Driving at approx. 12 mph (20 km/h) OK
The waveform is displayed as shown in the illustration.
HINT:
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.
NG → See step 4
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)
- Disconnect the combination meter connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open)
Tester Connection Condition Specified Condition E1-9 (+S) - D60-29 (SPD) Always Below 1 Ω - Reconnect the combination meter connector.
- Reconnect the ECM connector.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER ASSEMBLY - ECM)
OK → See step 3
- REPLACE ECM. Refer to REMOVAL
- GO TO METER / GAUGE SYSTEM. Refer to Speed Signal Circuit