Fail-Safe

FAIL-SAFE
The A/T control unit has an electronic Fail-Safe (limp home mode) to allow the vehicle to be driven even in the event of damage to a major electrical input or output device circuit.

In this condition, the vehicle runs in third gear in positions 1, 2 or D and will not upshift. Customer may say "Sluggish, poor acceleration."

When Fail-Safe operation occurs, the next time the key is turned to the "ON" position the OD OFF lamp will blink for about 8 seconds.

If the vehicle is driven under extreme conditions such as excessive wheel spinning and emergency braking suddenly after, Fail-Safe may be activated even if all electrical circuits are undamaged.

In this case, normal shift pattern can be returned by turning the ignition key OFF for 3 seconds and then back ON.

The blinking of the OD OFF lamp for about 8 seconds will appear only once and be cleared. The customer may resume normal driving conditions by chance.

Always follow the "WORK FLOW". Flow of Diagnosis
The SELF DIAGNOSIS results will be as follows:
The first SELF DIAGNOSIS will indicate the damage of the vehicle speed sensor or the revolution sensor.
During the next SELF DIAGNOSIS performed after checking the sensors, no damages will be indicated.