Toyota Tundra Service Manual: Route cannot be Calculated

PROCEDURE

1.	SET DESTINATION

(a) Set another destination and check if the system can calculate the route correctly.

OK:

Route can be correctly calculated.

NORMAL OPERATION

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Tundra Service Manual > Engine Immobiliser System (w/o Smart Key System): Theft Deterrent System Presence Detection (B279C)
DESCRIPTION This code is stored when an ECM that is incompatible with the engine immobiliser system is installed to the vehicle. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279C Theft Deterrent System Presence Detection An ECM that is incompatible with the engine immobiliser sy ...

Toyota Tundra Owners Manual