P0500 · blink 42 – VEHICLE SPEED SENSOR MALFUNCTION
- System
- ECT A245E/A246E
- Dashboard light
- Malfunction indicator lamp (Check Engine)
- Check-engine blink code
- 42
- Applies to
- 4-speed A/T A245E/A246E (RM821E ECT section covers both). PK: ZZE121R-GEPNKP 1.6 auto = A246E 30500-1A761 (PartSouq EPC fig 3501). PK 1.3 NZE120 has no auto.
- Description
- VEHICLE SPEED SENSOR MALFUNCTION
- Detection / symptoms
- Detection: No vehicle speed sensor signal to Engine ECU under condi- tions (1) and (2); (2−trip detection logic) 1. Neutral start switch is OFF 2. Vehicle is being driven
- Possible causes
- Combination meter; Wire harness; Engine ECU; Automatic transaxle (clutch, brake or gear etc,)
- What to check
- Workshop check order (RM821E): INSPECT SPEEDOMETER (ATM) SENSOR -> CHECK WIRE HARNESS AND CONNECTOR(SPD − E1) -> INSPECT ECU
- Confidence
- high (official Toyota RM821E)
From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights

