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DTC No. U1E06-87 Confirmed Trans error for LIN2
 
 
 
 
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 8.0 volts or more for 5 seconds.
  • EV power source relay drive signal: ON
Judgment Criterion
  • The communication status between the PHEV-ECU and LIN2 line is in Fail condition for 2 seconds or more.
 
 
OBD-II DRIVE CYCLE PATTERN
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the LIN bus line (LIN2)
  • Malfunction of the blower assembly [Radiator fan (LH) or (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
  • MB991223: Wiring harness set
  • MB992006: Extra fine probe
1.Check wiring harness and connectors for damage.
Check the wiring harness and connectors in LIN2 line between PHEV-ECU connector and radiator fan (LH and RH) for damage.
Is the check result normal?
Repair the connector(s) or wiring harness. Then,
 
2.Check of continuity at PHEV-ECU connector (LIN2 terminal)
(1) Disconnect the PHEV-ECU connector (E437), and measure at the wiring harness side.
(2) Disconnect the radiator fan (LH and RH) connector.
(3) Check the following wiring harnesses for continuity.
  • Continuity between the PHEV-ECU connector (LIN2 terminal) and body ground
    OK: No continuity
  • Continuity between the PHEV-ECU connector (LIN2 terminal) and radiator fan (LH) (No. 4 terminal)
  • Continuity between the PHEV-ECU connector (LIN2 terminal) and radiator fan (RH) (No. 4 terminal)
    OK: Continuity exists (2 Ω or less)
Is the check result normal?
Repair the connector(s) or wiring harness in LIN2 line between the PHEV-ECU and radiator fan (LH and RH). Then,
 
3.Radiator fan (LH) check
  1. Disconnect the radiator fan (LH) connector.
  2. Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
  3. Check whether the PHEV-ECU sets the following DTC.
    • DTC No. U1E06-87 Confirmed Trans error for LIN2
Is the DTC set?
Replace the blower assembly (Refer to RADIATOR REMOVAL AND INSTALLATION). Then,
 
4.Radiator fan (RH) check
  1. Disconnect the radiator fan (RH) connector.
  2. Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
  3. Check whether the PHEV-ECU sets the following DTC.
    • DTC No. U1E06-87 Confirmed Trans error for LIN2
Is the DTC set?
Replace the blower assembly (Refer to RADIATOR REMOVAL AND INSTALLATION). Then,
 
5.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 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.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.