[Previous][Next]
DTC P107C: Motor coil U-phase temperature sensor fails (short to power supply, short circuit)
DTC P107D: Motor coil U-phase temperature sensor fails (short to ground, open circuit)
DTC P107E: Motor coil W-phase temperature sensor fails (short to power supply, short circuit)
DTC P107F: Motor coil W-phase temperature sensor fails (short to ground, open circuit)
 
 
 
 
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
  • REMCU power supply voltage is 8 volts to 16 volts.
Judgment Criterion <DTC P107C, P107E>
  • Change of the REMCU coil temperature sensor voltage is more than 4.759 volts [201°C (394°F)] for 0.5 second.
Judgment Criterion <DTC P107D, P107F>
  • Change of the REMCU coil temperature sensor voltage is less than 0.081 volt [-51°C (-60°F)] for 0.5 second.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
 
 
PROBABLE CAUSES
  • The temperature sensor circuit fails
  • Malfunction of the Rear motor/rear transaxle assembly
  • Malfunction of the REMCU
 

 
 
DIAGNOSIS
Required Special Tools
  • MB991223: Wiring harness set
  • MB992006: Extra fine probe
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
Check if the DTC P1036 is set in the REMCU.
Is the DTC set?
Carry out troubleshooting for the DTC P1036 (Refer to ). Then go to Step 3.
Go to Step 2.
 
STEP 2. Check the resistance in the coil temperature sensor.
(1) Disconnect the REMCU connector.
(2) Check the conduction of the harness between the REMCU and the rear motor/rear transaxle assembly and measure the resistance value of the coil temperature sensor (U-phase and W-phase) in the REMCU connector terminals.
 
Terminal symbolNormal
TH1 to TG1 (U-phase)
  • Approx. 65kΩ to 90kΩ at -20°C (-4°F)
  • Approx. 25kΩ to 35kΩ at 0°C (32°F)
  • Approx. 12kΩ to 15kΩ at 20°C (68°F)
  • Approx. 5kΩ to 7kΩ at 40°C (104°F)
TH2 to TG2 (W-phase)
Is the check result normal?
Replace the REMCU (Refer to ). Then go to Step 3.
Replace the wiring harness (TH1 line, TG1 line, TH2 line, TG2 line) and the rear motor/rear transaxle assembly (Refer to ). Then go to Step 3.
 
STEP 3. 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 1 .
(2) Check the DTC.
Is the DTC set?
Retry the troubleshooting.
The inspection is complete.