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 > Can Communication System: Terminals Of Ecu
TERMINALS OF ECU NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Cli ...