DESCRIPTION This code is stored when an ECM that is incompatible with the engine immobiliser system is installed to the vehicle.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Clear the DTCs. Click here
(a) Start the engine. (b) Check for DTCs. Click here HINT: Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure. OK: DTC B279C is not output.
(a) Replace the current ECM with the proper ECM.
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Toyota Tundra Service Manual > Automatic Transmission System: Road Test
ROAD TEST 1. PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transmission does not shift up or down, or that the shift point is too high or too low, conduct the following road test referring to the autom ...