Inspection Procedure

HINT:

Performing the intelligent tester's ACTIVE TEST allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time.

The DATA LIST can be displayed during the ACTIVE TEST.

1. Warm up the engine.
2. Turn the ignition switch OFF.
3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
4. Turn the ignition switch ON.
5. Turn the intelligent tester ON.
6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.
7. Follow the instructions on the tester and read the ACTIVE TEST.

   HINT:

   While driving, the shift position can be forcibly changed with the intelligent tester.

   Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you to confirm the problem (see DTC P0711 TRANSMISSION FLUID TEMPERATURE SENSOR "A" PERFORMANCE  ).

   ACTIVE TEST DETAIL
   
   

   Item	Test Details	Diagnostic Note
   SHIFT	[Test Details] Operate the shift solenoid valve and set each shift position by yourself [Vehicle Condition] IDL: ON Less than 50 km/h (31 mph) [Other information] Press "-->" button: Shift up Press "<--" button: Shift down	Possible to check the operation of the shift solenoid valves

   HINT:

   • This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
   • The 4th to 5th up-shift must be performed with the accelerator pedal released.
   • The 5th to 4th down-shift must be performed with the accelerator pedal released.
   • Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift successively.
   • The shift position commanded by the ECM is shown in the DATA LIST (shift status) display on the intelligent tester.
   • The shift solenoid valve SR and SL1 turns ON/OFF normally when the shift lever is on D:
     DATA LIST DETAIL
     
     

     ECM gear shift command	1st	2nd	3rd	4th	5th
     Shift solenoid valve SR	OFF	OFF	OFF	OFF	ON
     Shift solenoid valve SL1	OFF	OFF	OFF	OFF	ON

1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0771) 
   1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON and push the intelligent tester main switch ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   4. Read the DTCs using the intelligent tester.

      Result 

      RESULT REFERENCE
      
      

      Display (DTC output)	Proceed to
      Only P0771 is output	A
      P0771 and other DTCs	B

      HINT:

      If any other codes besides P0771 are output, perform troubleshooting for those DTCs first.

   B: GO TO DTC TABLE 

   A: GO TO NEXT STEP 

2. INSPECT SHIFT SOLENOID VALVE SR 
   1. Remove the shift solenoid valve SR.
   2. Measure the resistance between the solenoid valve terminal and solenoid valve body.

      Standard resistance: 11 to 15 Ω at 20°C (68°F) 

   3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

      OK: Solenoid makes an operating noise. 

   NG: REPLACE SHIFT SOLENOID VALVE SR 

   Fig 1: Measuring Resistance Between Solenoid Valve SR Terminal & Solenoid Valve Body

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: GO TO NEXT STEP 

3. INSPECT SHIFT SOLENOID VALVE SL1 
   1. Remove the shift solenoid valve SL1.
   2. Measure the resistance of the solenoid valve.

      Standard resistance: 5.0 to 5.6 Ω at 20°C (68°F) 

   3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

      OK: Solenoid makes operating noise. 

   NG: REPLACE SHIFT SOLENOID VALVE SL1 

   Fig 2: Measuring Resistance Of Solenoid Valve SL1 Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: GO TO NEXT STEP 

4. INSPECT TRANSMISSION VALVE BODY ASSEMBLY 

   OK: There are no foreign objects on each valve. 

   NG: REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY 

   OK: REPLACE AUTOMATIC TRANSMISSION ASSEMBLY