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AUTOMATIC TRANSMISSION (AW30-40LE) 7A-49 ‘01TFR (For Thailand)
D07L100007 Circuit description: Input revolution information is provided to TCM by the Fail-safe control: The TCM controls fail-safe by detecting input revolution Failure detection:
• When not even 1 pulse is input in the input revolution sensor during the time 4 pulses are input
• 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 Timer starts when D, 2 or L range are detected (fixation Contents of control: At failure detection • Lock-up control inhibit
• Up hill and down hill control inhibit (For UBS) At failure decision control items at failure detection.
• Blinks "CHECK TRANS" lamp
• Stores the failure information in failure-memory Conditions of turning "CHECK TRANS" off: At D, 2 or L range and not shifting, turns "CHECK Reversion conditions from fail-safe: Recovers at the same time as the conditions of turning Test description: The following numbers correspond to the step numbers 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. 4. At this test, the continuity of the input revolution sensor is checked. |