Fail-Safe Chart

A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: FAIL-SAFE CHART

1. FAIL-SAFE CHART

(a) This function minimizes the loss of the ECT functions when a malfunction occurs in each sensor or solenoid.





(b) Fail-safe function:

If either of the shift solenoid valve circuits has an open or short failure, the ECM turns the other shift solenoid ON and OFF in order to shift into the gear positions shown in the table below.

In case of a short circuit, the ECM stops sending current to the short circuit solenoid.

Even if starting the engine again in the fail-safe mode, the gear position remains in the same position.





X: Malfunction





X: Malfunction





X: Malfunction





X: Malfunction

HINT
* [down]: Condition in the electrical malfunction is shown above "[down]".
* [down]: Condition in the fail-safe mode is shown below "[down]".
* E/B: Engine brake.