On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE V-BANK COVER SUB-ASSEMBLY
2. INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) (a) Disconnect the vacuum switching valve connector.
(c) Check the vacuum switching valve operation.
(3) When applying a vacuum to port F, check that air is sucked into port E. If the result is not as specified, replace the vacuum switching valve assembly. (d) Connect the vacuum switching valve connector. 3. INSTALL V-BANK COVER SUB-ASSEMBLY
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Toyota Tundra Service Manual > Engine Immobiliser System (w/o Smart Key System): Theft Deterrent System Communication Line High Fixation (B279A)
DESCRIPTION When the communication line (EFIO-IMI) between the transponder key ECU assembly and ECM is stuck on HI output, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279A Theft Deterrent System Communication Line High Fixation The communication line (E ...