Circuit Description
WARNING: This page is about a different car, the 2002 Toyota ECHO, 2002 Toyota Celica, 2001 Toyota ECHO, and 2001 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.
PNP switch detects selector lever position and sends a signal to ECM. If signal is not sent to ECM, the ECM defaults transaxle to "D" position. DTC will set when ECM detects 2 or more circuits are on, vehicle has been driven for 30 seconds or more at 44 MPH or more, engine speed is 1500-2500 RPM and PNP switch is on. Possible causes:
- Short in PNP switch circuit.
- PNP switch malfunction.
- ECM malfunction.