Return Spring Check

Throttle stuck

Open in motor circuit

Faulty motor

Faulty ECM

During TPS adaptation

Throttle position > Limp-home pos.+3 %

0.56 sec

1 driving cycle

Abnormal value of TPS re-adaptation

During TPS adaptation (throttle is made to approach the lower mech. throttle limit stop via ramp) Learned value already saved

Voltage throttle poti 1 at the lower limit stop < 0.21 V or Voltage throttle poti 2 at the lower limit stop > 4.84 V or Volt. sum throttle poti1 and 2 = 5 V

0.3 sec

1 driving cycle

Abnormal value of TPS re-adaptation

Delta Limphome(last dcy adaptation - current dcy adaptation) or ETC replaced or ECU reset

Voltage throttle poti 1 at the lower limit stop + offset > 0.695 V

Voltage throttle poti 2 at the lower limit stop - offset(0.025 V) < 4.305 V

0.3 sec

1 driving cycle

TPS re-adapation was failed due to violated input conditions

During TPS adaptation

Engine speed > 250 rpm

Vehicle speed > 0 mph

Accel. pedal > 14.9 %

ECT < 5.3 ℃(41.54 °F)

ECT > 100.5 ℃(212.9 °F)

IAT < 5.3 ℃(41.54 °F)

Immediate

2 driving cycles

TPS re-adapation was failed due to violated input conditions

During TPS adaptation

Engine speed > 250 rpm

Vehicle speed > 0 mph

Accel. pedal > 14.9 %

ECT < 5.3 ℃(41.54 °F)

ECT > 100.5 ℃(212.9 °F)

IAT < 5.3 ℃(41.54 °F)

Immediate

1 driving cycle

TPS adaptation fault or abnormal value during the first initialization

First initialization

IG ON

Learning stop due to violated input condition and UMA learning error

Immediate

1 driving cycle

Limp-home check

IG ON

Limp-home position < 1.0% or > 19.5%

Immediate

2 driving cycles