|
|
Content .. 1446 1447 1448 1449 ..
7A–34 AUTOMATIC TRANSMISSION (AW30-40LE) DTC P0717 (FLASHING CODE 14) INPUT REVOLUTION SENSOR FAILURE (NC0) D07RY00020 Circuit description: Fail-safe control: Failure detection: • When not even 1 pulse is input in the input revolution sensor during the time 4 pulses are input in the • When the failure criteria is continuously 1000 times from the time ignition is turned ON until it is turned Prohibits failure detection when at least one among the • When D, 2 and L range signal is not fixed. • When output revolution is less than 775 rpm. • When the failure detection timer T1 (*1) is less than 25 seconds. • Solenoid S1, S2, and selector position switch is on failure detection or decision. • At 4th gear. • When passed less than 10 seconds after shift command output. *1: Failure detection inhibit timer T1 • Lock-up control inhibit • Up hill and down hill control inhibit At failure decision Executes following items in addition to above control • Blinks "CHECK TRANS" lamp • Stores the failure information in failure-memory Conditions of turning "CHECK TRANS" off: Reversion conditions from fail-safe: Test description: The following numbers correspond to circled numbers on (1) When the engine is running, a revolution signal is input from the input revolution sensor to the TCM. (2) At this test, the continuity of circuit wiring and the input revolution sensor is checked. (3) At this test, the continuity of the input revolution sensor is checked. Diagnostic aids: |