DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air conditioner / Trouble Codes. (e) Check for DTCs. 2. CLEAR DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air conditioner / Trouble Codes. (e) Clear the DTCs. 3. INDICATOR CHECK ![]() (a) Press and hold the A/C control AUTO switch and Recirculation / Fresh switch simultaneously, and turn the ignition switch ON. Continue holding the 2 switches until the panel diagnosis mode begins. ![]() (b) Check that all indicators turn on and off 4 times in succession at 1 second intervals. HINT:
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Toyota Tundra Service Manual > Tire Pressure Warning System: Terminals Of Ecu
TERMINALS OF ECU CHECK TIRE PRESSURE WARNING ECU AND RECEIVER (a) Disconnect the P21 tire pressure warning ECU and receiver connector and measure the voltage or resistance on the wire harness side. *a Front view of wire harness connector (to Tire Pressure Warning ECU and Receiver) Terminal No. (Symb ...