HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P314779; Transmission (Shaft) Mechanical Linkage Failure; 2020 - 2024 MY RAV4 HV [06/2020

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001OBBH
Model Year Start: 2020	Model: RAV4 HV	Prod Date Range: [06/2020 - ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P314779; Transmission (Shaft) Mechanical Linkage Failure; 2020 - 2024 MY RAV4 HV [06/2020 - ]

DTC

P314779

Transmission (Shaft) Mechanical Linkage Failure

DTC SUMMARY

Refer to the DTC summary for DTC P1C7779.

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DESCRIPTION

Refer to the description for DTC P1C7779.

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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)

Hybrid vehicle transaxle assembly
Transmission input damper assembly
Engine

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 DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 2 minutes or more.
Turn the ignition switch to ON and turn the Techstream on.
Turn the ignition switch to ON (READY).
Drive the vehicle at approximately 30 km/h (19 mph) or more for approximately 5 seconds or more using the engine.
Enter the following menus: Powertrain / Hybrid Control / 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.

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)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Check for DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
No DTCs are output, or DTCs except the ones in the table below are also output.	A
Any of the following DTCs are also output.	B

Relevant DTC
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

(e) Turn the ignition switch off.

GO TO DTC CHART (SFI SYSTEM)

2.	CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION)

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GO TO STEP 7

CLEAR DTC

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4.	CHECK ENGINE RACING

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REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

5.	CHECK CREEP MOVEMENT

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REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

6.	INSPECT ENGINE SPEED

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Result	Proceed to
The absolute value of the difference is less than 500 rpm.	A
The absolute value of the difference is 500 rpm or more continuously for 1 second.	B

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY

7.	CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION)

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REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

REPAIR OR REPLACE ENGINE