Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Open vehicle speed sensor circuit/ Vehicle speed signal abnormal

Toyota Corolla (E120): Open vehicle speed sensor circuit/ Vehicle speed signal abnormal

Dtc 21 open vehicle speed sensor circuit

Dtc 23 vehicle speed signal abnormal

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Circuit description
When driving uphill under cruise control, in order to reduce the number of shifting due to on–off overdrive operation and to provide smooth driving, when down shifting in the electronically controlled transmission occurs, a signal to prevent upshift until the end of the uphill slope is sent ...

Calibrating the compass
The direction display deviates from the true direction determined by the earth’s magnetic field. The amount of deviation varies according to the geographic position of the vehicle. If you cross over a map boundary shown in illustration, the compass will deviate. To obtain higher precision or ...

Inspection procedure
Hint: perform the troubleshooting of dtc p0335 first. If no trouble is found, troubleshoot the engine mechanical systems. Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When tr ...