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DTC No. P1A3D-12 Gear Lever Position Sensor 4 Circuit-high
 
 
 
 
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 volts or more.
  • The power supply mode of the electric motor switch is ON.
Judgment Criterion
  • The voltage of the gear lever position sensor (GLPS) 4 is 4.5 volts or more for 0.5 second or more.
 
 
OBD-II DRIVE CYCLE PATTERN
 
 
TROUBLESHOOTING HINTS
  • Damaged wiring harness and connectors
  • Malfunction of the selector lever
  • 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 of continuity at selector lever connector (SFG2 terminal)
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Check the continuity between the selector lever connector (SFG2 terminal) and body ground.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
 
2.Check of open circuit in SFG2 line between PHEV-ECU and selector lever
Is the check result normal?
Repair the connector(s) or wiring harness. Then,
 
3.Voltage measurement at selector lever connector (SF04 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 selector lever connector (SF04 terminal) and body ground.
OK: Approximately 5 V
Is the check result normal?
 
4.Check of open circuit in SF04 line between PHEV-ECU and selector lever
Is the check result normal?
Repair the connector(s) or wiring harness. Then,
 
5.Check wiring harness and connectors for damage.
Check the wiring harness and connectors in SF04 line between the PHEV-ECU connector and selector lever connector for damage.
Is the check result normal?
Repair the connector(s) or wiring harness. Then,
 
6.Voltage measurement at selector lever connector (SF04 terminal)
(1) Measure the selector lever connector side by backprobing.
(2) Change the power supply mode of the electric motor switch to ON (READY indicator: OFF).
(3) Measure the voltage between the selector lever connector (SF04 terminal) and body ground.
Check conditionNormal condition
Selector lever: H, Nr, Nd1.6 ± 0.5 V
other than above2.98 ± 0.3 V
Is the check result normal?
Replace the selector lever (Refer to Transaxle - Selector Lever REMOVAL AND INSTALLATION). Then,
 
7.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).
 
8.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.