DESCRIPTION When the ignition switch is turned ON, positive (+) battery voltage is applied to the air conditioning amplifier. WIRING DIAGRAM ![]() PROCEDURE
(a) Remove the ECU-IG1 NO.3 fuse from the driver side junction block. (b) Measure the resistance according to the value(s) in the table below. Standard resistance:
![]() (a) Disconnect the J19 air conditioning amplifier connector. (b) Measure the resistance and voltage according to the value(s) in the table below. Standard resistance:
Standard voltage:
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Toyota Tundra Service Manual > Audio And Visual System: Speaker Output Short (B15C3)
DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC Code DTC Detection Condition Trouble Area B15C3 A short is detected in the speaker output circuit. Speakers Harness or connector Stereo component amplifier assembly Radio and display receiver assembly WIRING DIAGRAM PROCED ...