Diagnostic Aids

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 (Blue wire) at ECM electrical connector E5 and No. 10 (Black/White wire) for camshaft position sensor on the right bank or No. 22 (Black/White wire) for camshaft position sensor on the left bank at ECM electrical connector E4. This is the NE-, VV1+ and VV2+ terminals on ECM. Camshaft position sensor (bank No. 1) is on the left bank and camshaft position sensor (bank No. 2) is on the right bank. ECM is located behind glove box, near passenger's side kick panel. See Figure. For ECM electrical connector terminal identification, see Figure. Camshaft position sensor waveform pattern should be properly displayed. See Figure.