CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Measure the battery voltage with the ignition switch off. Standard voltage: 11 to 14 V If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
(a) Using the Techstream, check if the CAN communication system is functioning normally. HINT: Refer to CAN Bus Check in CAN Communication System. Click here
OK: CAN communication system is functioning normally.
HINT: Refer to DTC Check / Clear. Click here
(a) Check for DTCs and note any codes that are output. (b) Clear the DTCs. (c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.
HINT: Refer to Problem Symptoms Table. Click here
(a) Terminals of ECU Click here (b) Data List / Active Test Click here
NOTICE: If the forward recognition camera has been replaced with a new one, it is necessary to perform Forward Recognition Camera Axis Adjustment. Click here
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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 ...
