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DTC P105C: Electric oil pump stuck-OFF1
 
 
 
 
MONITOR EXECUTION
  • Continuous
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored 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 Conditions
  • Power drive unit (GCU) power supply voltage is 8 volts to 16 volts.
  • Oil pump drive duty command is more than 15 % (Active).
Judgment Criterion
  • Change of the oil pump duty status is more than 75 % for 5 seconds.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 3 .
 
 
PROBABLE CAUSES
  • Electric oil pump circuit system fails
  • Oil filter clogging
  • Pipe clogging
  • Malfunction of the oil pump
  • Oil cooling system fails
  • Malfunction of the generator
  • Damaged wiring harness
 
 
DIAGNOSIS
STEP 1. Check the power drive unit [generator control unit (GCU)] connector
Check the power drive unit connector (OPMP line and OPCP line) visually for semi-fitting, damage, moisture/foreign matter intrusion.
Is the check result normal?
Go to step 2.
: Properly fit the power drive unit connector. Then go to Step 8.
: Replace the wiring harness (OPMP line and OPCP line). Then go to Step 8.
: Replace the wiring harness (OPMP line and OPCP line) and power drive unit (Refer to ). Then go to Step 8.
: Replace the power drive unit (Refer to ). Then go to Step 8.
 
STEP 2. Check the electric oil pump connector
Check the electric oil pump connector (OPMP line and OPCP line) visually for semi-fitting, damage, moisture/foreign matter intrusion.
Is the check result normal?
Go to step 3.
: Properly fit the electric oil pump connector. Then go to Step 8.
: Replace the wiring harness (OPMP line and OPCP line). Then go to Step 8.
: Replace the wiring harness (OPMP line and OPCP line) and electric oil pump (Refer to GROUP 14B - Electric Oil Pump/EV Oil Cooler Bypass Valve ). Then go to Step 8.
: Replace the electric oil pump (Refer to GROUP 14B - Electric Oil Pump/EV Oil Cooler Bypass Valve ). Then go to Step 8.
 
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
Check whether the power drive unit [generator control unit (GCU)] set a P105B or P10AE which is related to the electric oil pump.
Is the DTC set?
Carry out troubleshooting for the DTC P105B or P10AE (Refer to <DTC P105B>, <DTC P10AE>). Then go to Step 8.
Go to Step 4.
 
STEP 4. Check the oil level.
Check that the oil level is at the lower edge of the oil level plug hole.
Is the check result normal?
Go to Step 5.
Inject oil (Refer to GROUP 14B - On-Vehicle Service <Oil Cooling System> - Oil Change ). Then go to Step 6.
 
STEP 5. Oil filter check
Remove the generator drain plug, check that the oil filter behind it is not clogged or damaged.
Is the check result normal?
Replace the oil filter and the oil (Refer to GROUP 14B - On-Vehicle Service <Oil Cooling System> - Oil Change ). Then go to Step 7.
Replace the EV oil cooler (Refer to GROUP 14B - EV Oil Cooler ), EV oil cooler hose and EV oil cooler pipe (Refer to GROUP 14B - Oil Hose and Pipe ), the EV oil cooler bypass valve and electric oil pump (Refer to GROUP 14B - Electric Oil Pump/EV Oil Cooler Bypass Valve ), the oil filter and the oil (Refer to GROUP 14B - On-Vehicle Service <Oil Cooling System> - Oil Change ). Then go to Step 7.
 
STEP 6. Using scan tool (M.U.T.-IIISE), check the actuator test.
cautionWhen ambient temperature is -15°C (5°F) or less, the oil pump may not operate stably. Execute the actuator test only when the temperature is above -15°C (5°F).
(1) Execute the GCU actuator test below: (Refer to .)
Item No.1: Oil pump
(2) Check for the existence of oil leakage.
Is the oil level appropriate?
Go to Step 5.
Go to Step 4.
 
STEP 7. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 3 .
(2) Check the DTC.
Is the DTC set?
Replace the power drive unit (Refer to ). Then go to Step 8.
The inspection is complete.
 
STEP 8. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 3 .
(2) Check the DTC.
Is the DTC set?
Retry the troubleshooting.
The inspection is complete.