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DTC No. P1A60-11 Quick Charger Inlet Voltage Monitoring Circuit Low
 
 
danger
 
 
 
 
DTC SET CONDITION
Check Condition
  • During quick charging, or external power supply
Judgment Criterion
  • The low input of the high voltage sensor (for quick charging) signal is detected for 10 seconds or more.
 
 
TROUBLESHOOTING HINTS
  • Damaged wiring harness and connectors
  • Malfunction of the junction box
  • Malfunction of the high voltage sensor (for quick charging)
  • Malfunction of the high voltage fuse (10 A) for high voltage sensor (for quick charging)
  • Malfunction of the On Board Charger (OBC) system
  • 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
  • MB991223: Wiring harness set
  • MB992006: Extra fine probe
1.M.U.T.-IIISE other system DTC
Check whether the On Board Charger (OBC) sets the DTC related to quick charging contactor.
Is the DTC set?
Troubleshoot the set DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART).
 
2.Voltage measurement at high voltage sensor (for quick charging) connector (FCVS terminal)
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Change the power supply mode of the electric motor switch to ON (READY indicator: OFF).
(3) Measure the voltage between the high voltage sensor (for quick charging) connector (FCVS terminal) and body ground.
OK: Approximately 5 V
Is the check result normal?
 
3.Check of short to ground circuit in FCVS line between PHEV-ECU and high voltage sensor (for quick charging)
Is the check result normal?
Repair the connector(s) or wiring harness.
 
4.M.U.T.-IIISE data list
(1) Change the power supply mode of the electric motor switch to ON (READY indicator: OFF).
(2) Check the following PHEV-ECU data list.
  • Item No. 600: Quick Charger Inlet Voltage Sensor signal
    Check conditionNormal condition
    Disconnect the high voltage sensor (for quick charging) connector.ON
Is the check result normal?
 
5.Check whether the DTC is set again.
(1) Erase the set DTC.
(2) Perform the quick charging.
(3) Check whether the DTC is set again.
Is the DTC set?
Replace the PHEV-ECU (Refer to PHEV-ECU REMOVAL AND INSTALLATION).
The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).
 
6.Check of high voltage fuse (10 A) for high voltage sensor (for quick charging)
danger
Check the high voltage fuse (10 A) for high voltage sensor (for quick charging) in the junction box (Refer to CHECK AND REPLACEMENT OF HIGH-VOLTAGE FUSE INSIDE THE JUNCTION BOX).
Is the check result normal?
Replace the high voltage fuse for high voltage sensor (for quick charging)(Refer to CHECK AND REPLACEMENT OF HIGH-VOLTAGE FUSE INSIDE THE JUNCTION BOX).
 
7.Check of open circuit in high voltage circuit between high voltage sensor (for quick charging) and junction box
danger
Check the following high voltage cables for open circuit.
  • High voltage cable between high voltage sensor (for quick charging) side connector (terminal No. 10) and P side connection terminal in junction box
  • High voltage cable between high voltage sensor (for quick charging) side connector (terminal No. 1) and N side connection terminal in junction box
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Replace the junction box (Refer to JUNCTION BOX REMOVAL AND INSTALLATION).
 
8.Check whether the DTC is set again.
(1) Erase the set DTC.
(2) Perform the quick charging.
(3) Check whether the DTC is set again.
Is the DTC set?
Replace the high voltage sensor (for quick charging).
The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).