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DTC No. P1A31-96 Fan Control Module 1 failure 1
 
 
 
 
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
  • The PHEV-ECU power supply voltage is 9.0 V or more.
  • The power supply mode of the electric motor switch is ON.
Judgment Criterion
  • The over temperature signal from the radiator fan (RH) is detected for 0.2 second.
  • The temperature sensor error signal from the radiator fan (RH) is detected for 0.2 second.
  • The healable erictrical error signal from the radiator fan (RH) is detected for 0.2 second.
  • The ROM check error signal from the radiator fan (RH) is detected for 0.2 second.
  • The LIN response error signal from the radiator fan (RH) is detected for 0.2 second.
 
 
OBD-II DRIVE CYCLE PATTERN
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the blower assembly [Radiator fan (RH)]
  • Malfunction of the PHEV-ECU
 
 
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 DTC check
Check whether the DTC No. U1E06-87 is set.
Is the DTC No. U1E06-87 set?
Troubleshoot the set DTC. Then,
 
2.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 blower assembly (Refer to Engine Cooling – Radiator RADIATOR REMOVAL AND INSTALLATION). Then,
 
3.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 procedure is complete.
 
4.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 procedure is complete.