DATA LIST / ACTIVE TEST 1. READ DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensor, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch ON. (c) Turn the Techstream on. (d) Enter the following menus: Body / Main Body / Data List. (e) According to the display on tester, read the "Data List". Main Body
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Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Brake Switch "A" Circuit (P0571)
DESCRIPTION Detection condition 1: When the brake pedal is depressed, the stop light switch assembly outputs a signal to the ECM. When the ECM receives the signal, it cancels control of vehicle speed by the dynamic radar cruise control system. The fail-safe function operates to enable normal operati ...
