DESCRIPTION The ECM monitors its internal operation and it stores this DTC when it detects an internal malfunction.
MONITOR DESCRIPTION The ECM monitors its internal operation. If the internal operation is malfunctioning, the ECM illuminates the MIL and stores a DTC. MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
CONFIRMATION DRIVING PATTERN
CAUTION / NOTICE / HINT NOTICE: After
turning ignition switch off, waiting time may be required before
disconnecting the cable from the negative (-) battery terminal.
Therefore, make sure to read the disconnecting the cable from the
negative (-) battery terminal notices before proceeding with work (See
page HINT: Read freeze frame data using a Techstream. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred. PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Clear DTCs (See page (e) Turn the ignition switch off and turn the Techstream off. (f) Disconnect the Techstream. (g) Disconnect the cable from the negative (-) battery terminal and wait for 1 minute. (h) Connect the cable to the negative (-) battery terminal. (i) Connect the Techstream to the DLC3. (j) Turn the ignition switch to ON and turn the Techstream on. (k) Wait 30 seconds or more. (l) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. (m) Read DTCs. Result
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Toyota Tundra Service Manual > Can Communication System: Audio Receiver Assembly Communication Stop Mode
DESCRIPTION Detection Condition Symptoms Trouble Area Audio Receiver Assembly Communication Stop Mode Any of the following conditions are met: Communication stop for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check" screen of the Techstream. Communication system DTCs (DTCs ...