DTC P0503: Vehicle Speed Sensor Circuit Malfunction [08/2015 - 08/2019]: Procedure
WARNING: This page is about a different car, the 2019 Toyota 4Runner, 2018 Toyota 4Runner, 2017 Toyota 4Runner, and 2016 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)
- Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019]
).
OK
Vehicle stability control system DTCs are not output.
RESULTResult Proceed to OK A NG (for 2WD) B NG (for 4WD) C
Result:
B
GO TO VEHICLE STABILITY CONTROL SYSTEM
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )
Result:
C
GO TO VEHICLE STABILITY CONTROL SYSTEM
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )
Result:
A
See step 2
- Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019]
).
- CHECK FOR DTC
- Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
- Perform the following to make sure the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Drive the vehicle at a speed of 40 km/h (25 mph) or more.
- Turn the cruise control switch on.
- Push the cruise control switch to -SET to activate cruise control.
- Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019]
).
OK
DTC P0503 is not output.
Result:
OK
USE SIMULATION METHOD TO CHECK
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] )
Result:
NG
GO TO SFI SYSTEM
(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )