DTC P3147-239: Transmission Malfunction; DTC P3147-241: Transmission Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Engine / Trouble Codes.
4. Check if DTCs are output.

   Result

   DTCs are output.

YES → See step   13 

NO: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   DTC P3147-240 or P3147-242 is output.	A
   DTC P0A1D is output.	B
   DTCs other than P3147-239 or P3147-241 are not output.	C

A → See step   15 

B → See step   18 

C: Go to next step 

NG → See step   12 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check for HV system DTCs, freeze frame data, and diagnosis information and note them down.

NEXT: Go to next step 

1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
2. Clear the DTCs and freeze frame data.

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Data List / Generator (MG1) Rev, Engine Spd.
4. Turn the power switch on (READY).

   OK

   The READY light comes on.

   HINT: 

   If the READY light does not come on and the reading on the Techstream shows DTC P3147-239 (Hybrid vehicle transaxle input malfunction [shaft damaged]), or the READY light comes on and MG1 turns but the engine does not crank, replace the hybrid vehicle transaxle assembly and transmission input damper.

NG → See step   14 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Data List / Generator (MG1) Rev, Engine Spd.
4. While the READY light is on, depress the accelerator pedal for 10 seconds with the shift lever in the P position.

   OK

   The engine revs up.

   HINT: 

   If the engine does not rev up and the reading on the Techstream shows DTC P3147-239 (Hybrid vehicle transaxle input malfunction [shaft damaged]), or MG1 turns but the engine does not crank, replace the hybrid vehicle transaxle assembly and transmission input damper.

NG → See step   14 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Depress the brake pedal, move the shift lever to the D position, and release the brake pedal.

   OK

   The wheels turn (creeping along).

   HINT: 

   If the wheels do not turn and the reading on the Techstream shows DTC P3147-239 (Hybrid vehicle transaxle input malfunction (shaft damaged)), replace the hybrid vehicle transaxle assembly.

NG → See step   14 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. While driving at the vehicle speed of more than 6 mph (10 km/h), fully depress the accelerator pedal to raise the engine speed.
   Fig 1: Identifying Engine Speed And Vehicle Speed Graph

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   Engine speed increases smoothly (Check HINT).

   HINT: 

   If the engine over-revs or the reading on the Techstream shows DTC P3147-239 (Hybrid vehicle transaxle input malfunction (shaft damaged)), replace the transmission input damper assembly.

NG → See step   14 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (READY).
3. Perform a simulation test.
   1. Drive the vehicle at a speed of 40 mph (65 km/h) or more (a speed that will not allow intermittent engine operation to occur).
4. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
5. Read output DTCs.

   Result

   DTC is detected.

NO → See step   16 

YES → See step   17 

1. Turn the power switch off and move the shift lever to the N position.
2. Lift up the vehicle.
3. Turn the crank pulley by hand to check if the front tires rotate.
   WARNING:

   Do not turn the power switch on (IG) while performing this inspection. Be sure to turn the power switch off because the engine may start.

   OK

   The front tires rotate.

NG → REPAIR OR REPLACE ENGINE 

OK → See step   14