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DTC P061F: Disabling Path Check
 
 
 
 
TECHNICAL DESCRIPTION
To judge whether fail-safe control can be performed, check that power supply to the throttle actuator control motor circuit can be stopped by turning the throttle actuator control motor relay to OFF position momentarily.
 
 
DTC SET CONDITIONS
Check Condition
  • Power supply mode of electric motor switch is ON.
Judgment Criterion
  • Power supply to the throttle actuator control motor cannot be shut down (though power supply is stopped).
 
 
FAIL-SAFE AND BACKUP FUNCTION
Microcomputer is reset.
 
 
OBD-II DRIVE CYCLE PATTERN
None.
 
 
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Throttle actuator control motor relay circuit failed.
  • ECM failed.
 
 
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.STEP 1. Using scan tool (M.U.T.-III SE), read the DTC.
Use scan tool (M.U.T.-III SE) to check and see if a DTC 0657-00 is set.
Q: Is DTC 0657-00 set?
Perform troubleshooting for the throttle actuator control motor relay circuit (Refer to DTC P0657-00: Throttle valve control servo relay circuit malfunction)
 
2.STEP 2. Using scan tool (M.U.T.-III SE), DTC recheck after erasing DTC.
After erasing the DTC, check again to see if the DTC is set again.
(1) Use scan tool (M.U.T.-III SE) to erase the DTC.
(2) Turn OFF the power supply mode of the electric motor switch.
(3) Turn ON the power supply mode of the electric motor switch.
(4) Use scan tool (M.U.T.-III SE) to recheck the DTC.
Q: Is DTC P061F-00 set?
Replace the ECM (Refer to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION).
Intermittent malfunction (Refer to GENERAL INFORMATION, General Information – How to Use Troubleshooting/Inspection Service Points – How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).