Lexus ES: Transmission (Shaft) Mechanical Linkage Failure (P314779)
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) |
| Does not come on | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P314779 |
|
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 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).
- 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 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) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Engine / Trouble Codes.
Powertrain > Engine > Trouble Codes(d) Check for DTCs.
| 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 power switch off.
| B | .gif) | GO TO DTC CHART (SFI SYSTEM) |
|
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| 2. | CHECK CRANKSHAFT PULLEY REVOLUTION (P POSITION) |
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| NG | | GO TO STEP 7 |
|
| 3. | CLEAR DTC |
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|
| 4. | CHECK ENGINE RACING |
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| NG | | REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY |
|
| 5. | CHECK CREEP MOVEMENT |
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| NG | | 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 |
| A | | REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY |
| B | | REPLACE TRANSMISSION INPUT DAMPER ASSEMBLY |
| 7. | CHECK CRANKSHAFT PULLEY REVOLUTION (N POSITION) |
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| OK | | REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY |
| NG | | REPAIR OR REPLACE ENGINE |
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Components
COMPONENTS ILLUSTRATION *1 CRANKSHAFT PULLEY *2 TIMING CHAIN CASE OIL SEAL *3 CRANKSHAFT PULLEY SET BOLT *4 V-RIBBED BELT N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part MP grease - -
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