Component Location
General Description
Comparing actual torque and desired torque, PCM diagnoses calculated torque state. Actual torque keeps lower than desired torque, PCM checks if actual torque is higher than desired torque. deviding condition into two state, dynamic and steady states, PCM applies different diagnosis logic. Because the responses due to this code is similar to that of MAF control error, checking MAF at first.
DTC Description
If the difference between actual torque and desired torque is higher than the threshold value, PCM sets P161B and MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till 1 driving cycle.
DTC Detecting Condition
Item | Detecting Condition | Possible Cause |
DTC Strategy | ? Determines if Delivered Torque Is Grossly Different from Desired Torque | ? Intake air leakage ? Faulty ETS System ? Clogged exhaust system ? Faulty PCM |
Enable Conditions | Case 1 | ? Engine Running state ? Engine Speed > 600rpm ? Desired Flywheel Torque Within 20Nm > 1sec. |
Case 2 | ? Pedal Position < 0.8% ? Torque Command Source = Accel pedal. ? Engine speed > disired target engine speed ? All injectors enabled. |
Threshold value | Case 1 | ? Actual net torque-desired torque > threshold |
Case 2 | ? Normalized fuel flow > threshold |
Diagnosis Time | ? Continuous |
MIL On Condition | ? 1 Driving Cycle |