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DTC No. P050A-00 Cold Start Idle Control System Performance
 
 
 
 
MONITOR EXECUTION
Continuous
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC set in memory for the item monitored below)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
DTC SET CONDITIONS
Logic Flow Chart
 
 
Check Condition
  • When the driving mode is the series driving mode
  • When the cold strategy idle control status is ON
  • The engine coolant temperature at the time of the engine start is 0°C (32°F) or more.
  • The engine coolant temperature at the time of the engine start is less than 80°C (176°F).
Judgment Criterion
  • When the target rotation speed of the generator is larger than 496 r/min (the target rotation speed of the engine is larger than 200 r/min), and when a state where the engine torque correction amount is within the specified range continues for 20 seconds.
  • When a state where the target rotation speed of the generator is less than -248 r/min (the target rotation speed of the engine is less than -100 r/min) continues for 20 seconds.
 
 
OBD-II DRIVE CYCLE PATTERN
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the MFI system
  • Malfunction of the power drive unit (GCU)
  • Malfunction of the PHEV-ECU
  • Malfunction of the EGR system
 
 
 
DIAGNOSIS
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
1.M.U.T.-IIISE other system DTC
Check whether the power drive unit sets the DTC. [Refer to Electric Motor Control Unit (EMCU) and Motor (Electric Motor Unit) - Troubleshooting DIAGNOSTIC TROUBLE CODE CHART].
Is the DTC set?
Troubleshoot the set DTC. Then,
 
2.M.U.T.-IIISE other system DTC
Check whether the engine control module (ECM) sets the DTC. [Refer to Multiport Fuel Injection (MFI) - Troubleshooting DIAGNOSTIC TROUBLE CODE CHART].
Is the DTC set?
Troubleshoot the set DTC. Then,
 
3.Check the EGR system.
Check the EGR system (Refer to Emission Control - Description, Exhaust Gas Recirculation System DIAGNOSTIC TROUBLE CODE CHART).
Are there any abnormalities?
Repair it. Then,
 
4.Check the EGR valve contamination and the EGR passage contamination.
Check the EGR valve contamination and the EGR passage contamination.
Are the EGR valve and the EGR passage clogged?
Repair the EGR valve and the EGR passage contamination. Then,
 
5.Diagnosis of trouble symptom
Perform the "Starting" inspection in the inspection chart for trouble symptoms of the engine control module (ECM) [Refer to Multiport Fuel Injection (MFI) - Troubleshooting SYMPTOM CHART].
Is the check result normal?
Correct the defective item. Then,
 
6.Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
(2) Check the DTC.
Is the DTC set?
Replace the PHEV-ECU (Refer to PHEV-ECU REMOVAL AND INSTALLATION). Then,
The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).
 
7.Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
(2) Check the DTC.
Is the DTC set?
Retry the troubleshooting.
The inspection is complete.