HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P0E3116,...,P0E311F; DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Below Threshold; 2019 - 2020 MY RAV4 HV [11/2018

DESCRIPTION

The motor generator control ECU, which is built into the inverter with converter assembly, detects pre-boosting high voltage (VL) using the voltage sensor in the boost converter to control boosting. The motor generator control ECU also monitors the boost converter voltage sensor signal line and detects malfunctions.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0E3116

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Below Threshold

Boost converter voltage (VL) signal is stuck (Low)

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0E3117

DC/DC Converter Voltage Sensor "A"(VL) Circuit Voltage Above Threshold

Boost converter voltage (VL) signal is stuck (High)

(1 trip detection logic)

Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0E311F

DC/DC Converter Voltage Sensor "A"(VL) Circuit Intermittent

Boost converter voltage (VL) signal is stuck (Low) or (High) detected when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)

Inverter with converter assembly

Does not come on

Master Warning:

Does not come on

Related Data List

DTC No.

Data List

P0E3116

P0E3117

P0E311F

VL Voltage

CONFIRMATION DRIVING PATTERN

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Connect the Techstream to the DLC3.
Turn the power switch on (IG) and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for 2 minutes or more.
Turn the power switch on (IG) and turn the Techstream on.
Turn the power switch on (READY) and wait for 5 seconds or more.
Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.

PROCEDURE

Powertrain > Hybrid Control > Trouble Codes

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

None of the following DTCs are output.

DTCs of hybrid control system in the tables below are output.

DTCs of motor generator control system in the tables below are output.

System

Relevant DTC

Hybrid control system

P0AD915

Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open

P0ADD15

Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open

P1C8449

High Voltage Power Resource Circuit Short during Ready ON

P312387

Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message

Motor generator control system

P312487

Lost Communication between Drive Motor "A" and HV ECU Missing Message

P0E3116, P0E3117 or P0E311F may be stored due to a malfunction which also causes the DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.