DESCRIPTION
WIRING DIAGRAM PROCEDURE
(a) Turn the ignition switch off. (b) Remove the trailer brake control switch. Click here (c) Inspect the trailer brake control switch. Click here OK: The trailer brake control switch operates normally.
(a) Disconnect the J172 trailer brake control ECU (brake control with bracket relay) connector. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Check the GAIN (+/-) selection button (trailer brake control switch) operation condition. OK: he GAIN (+/-) selection button (trailer brake control switch) has not been pushed and held for 1 minute or more.
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Toyota Tundra Service Manual > Navigation System: Voice Guidance does not Function
PROCEDURE 1. CHECK VOICE GUIDANCE SETTING (a) Check that the voice guidance settings are not off. OK: Voice guidance settings are not off. NG CHANGE VOICE GUIDANCE SETTINGS TO ON OK 2. CHECK AUDIO FUNCTION (a) Check that sound can be heard from a front speaker. OK: Sound can be heard. Result Result ...