Monitor Description
- The ECM receives signals such as requested engine torque, target engine speed and engine cranking status from the power management control ECU.
- The ECM controls engine start and stop and the throttle valve angle based on the signals received from the power management control ECU.
- The ECM receives the actual engine torque calculated by the power management control ECU based on the generator torque.
- When the actual engine torque is less than 20% of the requested engine torque*1, the ECM judges that the engine output is abnormal and stores DTC P3190.
(The engine may not start in the above condition.)
*1: Requested torque = Requested Engine Torque (kW) / HV Target Engine Speed (rpm) x 9549
- If the ECM does not detect engine start torque (actual engine torque) even though it has received an engine start request and started the engine, it stores DTC P3191.
HINT:
- When DTC P3190, P3191 or P3193 is stored, engine operation is disabled. In this case, add fuel or perform a repair, then clear the DTCs and turn the power switch off to allow the operation to return to normal.
- When DTC P3190, P3191 or P3193 is stored, the HV battery is not charged as the vehicle operates using only the motor. If the vehicle is driven in this condition, the SOC will drop and the HV battery will be depleted, preventing the system from entering the READY-on state.
- When DTC P3190 or P3191 is stored, the engine torque has dropped by 80% or the engine cannot be started. If any DTCs that indicate malfunctioning of engine related parts are stored at the same time, repair the malfunctioning parts first.
RELEVANT DATA LIST ITEMS
| ECM (Powertrain / Engine and ECT / Data List) | |||
|---|---|---|---|
| HV Target Engine Speed | Engine Speed | Requested Engine Torque | Actual Engine Torque |
| Throttle Position Command | Throttle Position No. 1 | Calculate Load | Coolant Temp |
| Short FT #1 | Long FT #1 | EGR Step Position | - |
| POWER MANAGEMENT CONTROL ECU (Powertrain / Hybrid Control / Data List) | |||
|---|---|---|---|
| Target Engine Rev | Engine Revolution | Requested Engine Torque | Engine Coolant Temp |
| Engine Idling Request | - | - | - |