Fail-Safe

TCM


Fail-Safe

TCM has the electrical fail-safe mode. The mode is divided into a maximum of 3 phases (1st Fail-Safe, 2nd
Fail-Safe and Final Fail-Safe) and functions so that the operation can be continued even if the signal circuit of the main electronically controlled input/output parts is damaged.
Even if the electronic circuit is normal, the fail-safe mode may start under special conditions (such as when the brake pedal is depressed suddenly from a hard wheel spin status to stop the rotation of wheels). In this case, turn the ignition switch OFF and back to ON after 5 seconds to resume the normal shift pattern.
Consequently, the customer's vehicle may already return to the normal condition. Diagnosis Flow.

Fail-Safe Chart:

FAIL-SAFE FUNCTION

Fail-Safe Chart - Fail-Safe Function (Part 1):

Fail-Safe Chart - Fail-Safe Function (Part 2):

Fail-Safe Chart - Fail-Safe Function (Part 3):