DESCRIPTION When the transfer is switching between 4H and 4L, the H4 and L4 terminals of the transfer indicator switch are in one of the ON/OFF combinations listed in the table below.
This DTC is detected when the 4WD HIGH position and 4WD LOW position judgment signals do not match.
WIRING DIAGRAM PROCEDURE
(a) Disconnect the A26 4 wheel drive control ECU connector. (b) Disconnect the D70 transfer indicator switch connector. (c) Disconnect the A24 ECM connector. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the A24 ECM connector. (b) Disconnect the transfer indicator switch connector. (c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
NOTICE: Turning the ignition switch on with the ECM connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
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Toyota Tundra Service Manual > Theft Deterrent System: Glass Breakage Sensor ECU Circuit
DESCRIPTION When the glass breakage sensor detects the glass is broken (1st time), the sensor will set off an alarm for 20 seconds (pre-alarm). If the glass breakage sensor detects that more glass is broken (2nd time or more), the sensor will set off an alarm for 60 seconds. WIRING DIAGRAM CAUTION / ...