Fig. 158: Secondary Air Injection System - Wiring Diagram (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Fig. 159: Secondary Air Injection System - Wiring Diagram (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
HINT:
The diagnostic information output from Air Injection Control Driver (AID) can be confirmed by connecting an
oscilloscope to the diagnostic information terminal of the AID. Reading the waveform while performing the
AIR system intrusive operation provided in the System Check function allows the possible trouble areas to be
narrowed down.
NOTE:
This Air Injection Check only allows technicians to operate the AIR system
for a maximum of 5 seconds. Furthermore, the check can only be
performed up to 4 times per trip. If the test is repeated, intervals of at least
30 seconds are required between checks. While AIR system operation
using the Techstream is prohibited, the Techstream display indicates the
prohibition (WAIT or ERROR).
If an ERROR is displayed on the Techstream during the test, stop the
engine for 10 minutes, and then try again.
Performing the Air Injection Check repeatedly may cause damage to the
AIR system. If necessary, leave an interval of several minutes between
2009 Toyota Tundra
2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra