INSPECTION PROCEDURE 1. INSPECT EGR VALVE ASSEMBLY (a) Check the resistance of the EGR valve.
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Toyota Tundra Service Manual > Air Conditioning System(for Automatic Air Conditioning System): IG Power Source Circuit
DESCRIPTION When the ignition switch is turned ON, positive (+) battery voltage is applied to the air conditioning amplifier. WIRING DIAGRAM PROCEDURE 1. INSPECT FUSE (ECU-IG1 NO.3) (a) Remove the ECU-IG1 NO.3 fuse from the driver side junction block. (b) Measure the resistance according to the valu ...
