DESCRIPTION During sleep mode, the occupant classification ECU monitors the condition of each sensor while the ignition switch is off. In this mode, if the occupant classification ECU detects an internal malfunction, DTC B1796 is set.
HINT:
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Turn the ignition switch to ON, and wait for at least 60 seconds. (b) Clear any DTCs stored in the memory (see page ). HINT:
(c) Turn the ignition switch off, and wait for at least 10 seconds. (d) Turn the ignition switch to ON, and wait for at least 60 seconds. (e) Using the Techstream, check for DTCs of the occupant classification ECU (see page ). OK: DTC B1796 is not output. HINT: DTCs other than DTC B1796 may be output at this time, but they are not related to this check.
(a) Turn the ignition switch off. (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Replace the occupant classification ECU.
HINT: Perform the inspection using parts from a normal vehicle when possible.
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON, and wait for at least 60 seconds. (d) Using the Techstream, perform the zero point calibration (see page ).
(a) Using the Techstream, perform the sensitivity check (see page ). Standard range: 27 to 33 kg (59.5 to 72.8 lb)
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Toyota Tundra Service Manual > Navigation System: Microphone Circuit between Microphone and Navigation Receiver Assembly
DESCRIPTION This circuit sends a microphone signal from the telephone microphone assembly to the navigation receiver assembly. It also supplies power from the navigation receiver assembly to the telephone microphone assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIV ...