FixVault

DTC Detection Logic

NOTE:
  • If DTC P1196 is displayed with DTC P0201, P0202, P0203, P0204, first perform the trouble diagnosis for DTC P0201, P0202, P0203, P0204. Refer to "DTC LOGIC ".
  • If DTC P1196 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335. Refer to "DTC LOGIC ".
  • If DTC P1196 is displayed with DTC P0340, first perform the trouble diagnosis for DTC P0340. Refer to "DTC LOGIC ".
  • If DTC P1196 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to "DTC LOGIC ".

ECM calculates the target torque based on the engine power request signal and the engine speed request signal sent from HV ECU.

HV ECU calculates the estimated torque based on the generator torque.

ECM compares the calculated target torque with the estimated torque sent from HV ECU.

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1196 Poor engine power The estimated torque is excessively low compared with the target torque
  • Intake air leaks
  • Incorrect PCV hose connection
  • Mass air flow sensor
  • Electric throttle control actuator
  • Fuel injector
  • Fuel run out
  • Incorrect fuel pressure
  • Spark plug
  • Ignition coil
  • Ignition signal circuit is open or shorted
  • Insufficient compression