PRECAUTION 1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: After the ignition switch is turned off, the navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal. 2. PRECAUTIONS FOR SD CARD (a) The navigation system uses an SD card containing data such as map data. ![]()
(b) Precaution for removing the SD card NOTICE:
(1) Before removing the SD card, make sure that the ignition switch is turned off. 3. Precaution for handling the SD card ![]() NOTICE:
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Toyota Tundra Service Manual > Occupant Classification System: Front Occupant Classification Sensor RH Circuit Malfunction (B1781)
DESCRIPTION The front occupant detection sensor RH circuit consists of the occupant classification ECU and the front occupant detection sensor RH. DTC B1781 is set when a malfunction is detected in the front occupant detection sensor RH circuit. DTC Code DTC Detection Condition Trouble Area B1781 On ...