DTC CHECK / CLEAR 1. DTC CHECK/CLEAR (a) Check for DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the ignition switch to ON. (3) Turn the Techstream on. (4) Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Trailer Brake Controller / Trouble Codes. (b) Clear the DTCs. (1) Connect the Techstream to the DLC3. (2) Turn the ignition switch to ON. (3) Turn the Techstream on. (4) Operate the Techstream to clear the codes. Enter the following menus: Chassis / Trailer Brake Controller / Trouble Codes. (5) According to the display on the Techstream, select the trouble code data display with the clear button. |
Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Switching Valve Stuck Open Bank1 (P2440-P2443)
DESCRIPTION Refer to DTC P0412 (See page ). DTC No. DTC Detection Condition Trouble Area P2440 Cumulative pressure pulsation is 60 kPa (450 mmHg) or more for 2 seconds (1 trip detection logic). Air switching valve (ASV) assembly Open or short in ASV circuit Secondary air injection system piping Pres ...
