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Last Modified: 9-16-2014 6.6 C Doc ID: RM000002IR0045X Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P2772; Four Wheel Drive (4WD) Low Switch Circuit Range / Performance; 2015 MY Tundra [08/2014 - ] DTC P2772 Four Wheel Drive (4WD) Low Switch Circuit Range / Performance DESCRIPTION The ECM detects the signal from the transfer indicator switch. This DTC indicates that the transfer indicator switch (L4) remains on. DTC CODE DTC DETECTION CONDITION TROUBLE AREA P2772 Transfer indicator switch (L4) remains on while the vehicle is being driven under the following conditions for 1.8 sec. or more (1-trip detection logic): (a) Output shaft speed is between 1000 and 3000 rpm. (b) Transfer position switch is in 2WD or 4H. Short in transfer indicator switch (L4) circuit 4 wheel drive control ECU ECM MONITOR DESCRIPTION The ECM monitors the transfer-case transfer indicator switch to determine when the transfer-case 4L gears are engaged. If the transfer-case 4L gears remain engaged under the following conditions, the ECM will conclude that The transfer-case shifter is in the "2WD" or "4H" position. The transfer-case output shaft speed is between 1000 and 3000 rpm. The specified time period has elapsed. MONITOR STRATEGY Related DTCs P2772: Transfer indicator switch/Functional check Required sensors/Components Transfer indicator switch Duration ON malfunction (A): 1.8 seconds ON malfunction (B): 0.5 seconds MIL operation 1 driving cycle TYPICAL ENABLING CONDITIONS All AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS... |