Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001N406
Model Year Start: 2021 Model: Corolla Prod Date Range: [04/2020 - 09/2022]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P314779; Transmission (Shaft) Mechanical Linkage Failure; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

DTC

P314779

Transmission (Shaft) Mechanical Linkage Failure

DTC SUMMARY

Refer to the DTC summary for DTC P1C7779.

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

DESCRIPTION

Refer to the description for DTC P1C7779.

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P314779

Transmission (Shaft) Mechanical Linkage Failure

Drive force from motor (MG2) or the engine cannot be transmitted to the wheels.

The engine, generator (MG1), motor (MG2) or hybrid vehicle transaxle assembly does not run smoothly due to a mechanical malfunction.

(1 trip detection logic)
  • Engine
  • Hybrid vehicle transaxle assembly
  • Transmission input damper assembly

Does not come on

Master Warning: Comes on

Related Data List

DTC No.

Data List

P314779
  • Generator Revolution
  • Motor Revolution
  • Engine Speed

CONFIRMATION DRIVING PATTERN

HINT:

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.

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): UTILITY

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. Turn the power switch on (READY).
  7. Drive the vehicle at approximately 30 km/h (19 mph) or more for approximately 5 seconds or more using the engine.
  8. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  9. 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 or N/A, perform driving pattern again.

CAUTION / NOTICE / HINT

HINT:

  • A seized engine, mechanical malfunction of the hybrid vehicle transaxle can be suspected.
  • If this DTC is output, the engine or gears in the transaxle may have seized or foreign matter have been caught in either of them. Therefore, check the engine oil, hybrid transaxle fluid, coolant (for Engine) and coolant (for Inverter) levels.

PROCEDURE

1.

CHECK DTC OUTPUT (ENGINE, MOTOR GENERATOR)

(a) Check for DTCs.

Powertrain > Engine > Trouble Codes

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

No DTCs are output, or DTCs except the ones in the table below are also output.

A

DTCs of SFI system in the tables below are output.

B

DTCs of Motor Generator Control System in the tables below are output.

C

System

Malfunction Content

Relevant DTC

SFI system

Sensor and actuator circuit malfunction

P033511

Crankshaft Position Sensor "A" Circuit Short to Ground

P033515

Crankshaft Position Sensor "A" Circuit Short to Battery or Open

P03352A

Crankshaft Position Sensor "A" Signal Stuck in Range

P033531

Crankshaft Position Sensor "A" No Signal

Motor generator control system

Motor resolver malfunction

P0A3F16

Drive Motor "A" Position Sensor Circuit Voltage Below Threshold

P0A3F21

Drive Motor "A" Position Sensor Signal Amplitude < Minimum

P0A3F22

Drive Motor "A" Position Sensor Signal Amplitude > Maximum

P0C5013

Drive Motor "A" Position Sensor Circuit "A" Circuit Open

P0C5016

Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold

P0C5017

Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold

P0C5A13

Drive Motor "A" Position Sensor Circuit "B" Circuit Open

P0C5A16

Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold

P0C5A17

Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold

Motor resolver ECU malfunction

P1C621F

Generator Control Module Offset Power Circuit Intermittent

P1CB038

Drive Motor "A" Position Sensor REF Signal Frequency Incorrect

Motor ECU malfunction

P06B01C

Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range

P1CAD49

Drive Motor "A" Position Sensor Internal Electronic Failure

(b) Turn the ignition switch off.

B

GO TO DTC CHART (SFI SYSTEM)

C

GO TO DTC CHART (MOTOR GENRATOR CONTROL SYSTEM)

A

2.

CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION)

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

NG

GO TO STEP 7

OK

3.

CLEAR DTC

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

NEXT

4.

CHECK ENGINE RACING

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

OK

5.

CHECK CREEP MOVEMENT

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

OK

6.

INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY

(a) Check that the hybrid transaxle fluid level is not extremely low.

HINT:

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID TRANSAXLE FLUID: ON-VEHICLE INSPECTION

(b) Drain the hybrid transaxle fluid.

HINT:

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; MAINTENANCE: P610 HYBRID TRANSAXLE FLUID: REPLACEMENT

(c) Check that the hybrid transaxle fluid is not contaminated by foreign matter.

OK:

- The hybrid transaxle fluid level is not extremely low.

- No foreign matter in the hybrid transaxle fluid.

OK

REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY AND TRANSMISSION INPUT DAMPER ASSEMBLY

  • Hybrid Vehicle Transaxle Assembly

    Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL

  • Transmission Input Damper Assembly

    Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (ENGINE MECHANICAL): REAR CRANKSHAFT OIL SEAL: REMOVAL

7.

CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION)

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P1C7779; Engine Failed to Start Mechanical Linkage Failure+

OK

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

NG

REPAIR OR REPLACE ENGINE