INSPECTION PROCEDURE
HINT:
By using the Techstream to perform the Secondary Air Injection Check operation in the System Check, the
air-fuel ratio and the pressure in the secondary air injection system passage can be checked while the
secondary air injection system is operating. This helps technicians to troubleshoot the system when it
malfunctions.
Read freeze frame data using the Techstream. Freeze frame data records the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other
data from the time the malfunction occurred.
Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0412,P0415; ...