Diagnostic Aids

WARNING: This page is about a different car, the 2002 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

This DTC uses two-trip detection logic. Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

If oscilloscope is available, camshaft position sensor operation may be checked by reading camshaft position sensor waveform pattern with engine idling. This may be done by monitoring the camshaft position sensor signal. Camshaft position sensor waveform pattern may be checked by connecting oscilloscope between terminals No. 24 (White wire) at ECM electrical connector E11 and No. 10 (Black wire) for camshaft position sensor (bank No. 1) or No. 22 (Orange wire) for camshaft position sensor (bank No. 2) at ECM electrical connector E12. This is the NE-, VV1+ and VV2+ terminals on ECM. Camshaft position sensor (bank No. 1) is located on rear (firewall side) cylinder head and camshaft position sensor (bank No. 2) is located on front (radiator side) cylinder head. ECM is located at passenger's side of instrument panel, just below glove box. See Figure. For ECM electrical connector terminal identification, see Figure. Camshaft position sensor waveform pattern should be properly displayed. See Figure.