DESCRIPTION The ECM illuminates the cruise control SET indicator by sending indicator output demand signals to the combination meter assembly via CAN communication. The cruise control SET indicator illuminates when the dynamic radar cruise control system is controlling vehicle speed. The cruise SET indicator light circuit uses CAN communication. If the cruise control SET indicator is not functioning correctly, check for CAN communication DTCs before troubleshooting this circuit. CAUTION / NOTICE / HINT CAUTION: Observe the following items for safety reasons when using Techstream:
NOTICE:
PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Combination Meter / Active Test. (e) Perform the Active Test according to the display on the Techstream. Body Electrical > Combination Meter > Active Test
(a) Turn the cruise control system on using the cruise control main switch (ON-OFF button). (b) Drive at a speed between approximately 40 km/h (25 mph) and 180 km/h (110 mph). (c) Enter the following menus: Powertrain / Radar Cruise1 / Data List. (d) Read the Data List according to the display on the Techstream. Powertrain > Radar Cruise1 > Data List
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Toyota Tundra Service Manual > Navigation System: Extension Module Malfunction (B1552,B158A,B15BA)
DESCRIPTION These DTCs are stored when a malfunction occurs in the extension module. DTC Code DTC Detection Condition Trouble Area B1552 Internal malfunction of the extension module Stereo component tuner assembly B158A Screen noise adjustment fails B15BA When either of the conditions below is met: ...