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DTC P0BF8: Electric current sensor 1 fails (short to power supply, short circuit)
DTC P0BF7: Electric current sensor 1 fails (short to ground, open circuit)
DTC P0BF6: Electric current sensor 1 fails (offset)
DTC P0BFC: Electric current sensor 2 fails (short to power supply, short circuit)
DTC P0BFB: Electric current sensor 2 fails (short to ground, open circuit)
DTC P0BFA: Electric current sensor 2 fails (offset)
 
 
 
 
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 <DTC P0BF8, P0BF7, P0BFC, P0BFB>
Check Conditions
  • REMCU power supply voltage is 8 volts to 16 volts.
Judgment Criterion <DTC P0BF8, P0BFC>
  • Change of the REMCU current sensor voltage is more than 4.7 volts (770 amperes) for 0.3 second.
Judgment Criterion <DTC P0BF7, P0BFB>
  • Change of the REMCU current sensor voltage is less than 0.3 volt (-770 amperes) for 0.3 second.
Logic Flow Chart <DTC P0BF6, P0BFA>
Check Conditions <DTC P0BF6, P0BFA>
  • REMCU power supply voltage is 8 volts to 16 volts.
  • The IGBT status of REMCU is off (Shutdown) or off to on.
Judgment Criterion <DTC P0BF6, P0BFA>
  • When the IGBT status of the REMCU is off (Shutdown), the REMCU current sensor voltage remains 2.611 volts (39 amperes) or more or 2.389 volts (-39 amperes) or less within 0.4 seconds.
  • When the IGBT status of the REMCU changes from off to on, the REMCU current sensor voltage is 2.611 volts (39 amperes) or more or 2.389 volts (-39 amperes) or less.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
 
 
PROBABLE CAUSES
Malfunction of the REMCU
 
 
DIAGNOSIS
STEP 1. 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?
Replace the REMCU (Refer to ). Then go to Step 2.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, - How to Cope with Intermittent Malfunctions ).
 
STEP 2. 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.