DESCRIPTION This DTC is detected when a short to ground is detected in the limit switch circuit, which detects the position of the transfer shift motor.
WIRING DIAGRAM ![]() PROCEDURE
(a) Disconnect the A26 4 wheel drive control ECU connector. (b) Disconnect the D68 transfer shift actuator assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
![]() (a) Disconnect the D68 transfer shift actuator assembly connector. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Automatic Transmission System: Shift Solenoid "A" Performance (Shift Solenoid Valve S1) (P0751)
DESCRIPTION The ECM uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th, 5th or 6th gear). Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid val ...