Toyota Tundra Service Manual: Pressing Power Switch does not Turn on System

PROCEDURE

1.	CHECK VEHICLE CONDITION

(a) Check that conditions in the cabin are not likely to cause condensation.

HINT:

This problem occurs when the cabin is humid and the temperature changes rapidly. This may produce condensation, resulting in a short circuit.

OK:

Condensation is not likely to be produced.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

DRY OUT CABIN AND RECHECK CONDITION

Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Transfer Synchronization Actuator Circuit High (P17A7)
DESCRIPTION This DTC is detected when a short to B+ is detected in the solenoid coil drive circuit. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area P17A7 Ignition switch ON (when not switching between 2WD and 4H) Short to B+ in the solenoid ...

Toyota Tundra Owners Manual