DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [12/2012 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

   Powertrain > Engine and ECT > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only P2714 is output	A
   P2714 and other DTCs are output	B

   HINT: 

   If shift solenoid valve SLT is stuck on, DTCs for several shift solenoid valves including the malfunctioning shift solenoid valve will be stored.

Result: 

A 

See step  4

Result: 

B 

See step  2

HINT: 

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

1. Remove the test plug from the transaxle case and connect SST.

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

   • SST: 09992-00095 
     • 09992-00231
     • 09992-00271
2. Connect the Techstream to the DLC3.
3. Start the engine and warm it up.
4. Measure the line pressure when the engine is idling.
5. Turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Active Test.
7. According to the display on the Techstream, perform the Active Test.
8. Measure the line pressure with SST.

   Powertrain > Engine and ECT > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Activate the Solenoid (SLT)	Operate shift solenoid valve SLT and raise line pressure	ON or OFF HINT:  ON: No action (normal operation) OFF: Line pressure up (When Active Test "Activate the Solenoid (SLT)" is performed, ECM commands shift solenoid valve SLT to turn off).	[Vehicle Condition] Vehicle stopped Engine idling

   Powertrain > Engine and ECT > Active Test 

   Tester Display
   Activate the Solenoid (SLT)

   HINT: 

   Activate the Solenoid (SLT) in the Active Test is performed to confirm that the line pressure changes. The line pressure changes are confirmed using the same SST that is used for the Hydraulic Test.

   Refer to HYDRAULIC TEST [12/2012 - ]

   Note that the pressure readings for the Active Test and Hydraulic Test are different.

   OK

   The line pressure changes as specified when performing the Active Test.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  3

1. Warm up the engine.
2. Turn the ignition switch off.
3. Connect the Techstream to the DLC3.
4. Turn the ignition switch to ON.
5. Turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Active Test.
7. According to the display on the Techstream, perform the Active Test.

   HINT: 

   • Comparing the gear commanded by the Active Test with the actual gear enables confirmation of the problem.

     Refer to FAIL-SAFE CHART [12/2012 - ]

   • The gear commanded by the ECM is shown in the Data List / Shift Status display on the Techstream.

   Powertrain > Engine and ECT > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Control the Shift Position	Operate the shift solenoid valves and set each shift position	Press "→" button: Shift up Press "←" button: Shift down	Can be used to check the operation of the shift solenoid valves. A 10-second interval is required between gear changes. Do not down-shift at high speeds. Doing so will damage the automatic transaxle. [Vehicle Condition] 50 km/h (30 mph) or less

   Powertrain > Engine and ECT > Active Test 

   Active Test Display
   Control the Shift Position

   Data List Display
   Shift Status

   NOTE:

   • This test can be conducted when the vehicle is stopped.
   • When shifting gears using the Active Test function, do not operate the accelerator pedal for 2 seconds before and after shifting gears.
8. Check the vehicle speed and the gear when the engine speed is 1000 rpm.

   HINT: 

   Because the torque converter has not engaged, it may be difficult to obtain the speeds specified in 4th, 5th, and 6th gear, however a difference of speed should still be evident following each gear change.

   Standard

   1st	2nd	3rd	4th	5th	6th
   8 to 12 km/h (5 to 7.5 mph)	15 to 19 km/h (9.3 to 11.8 mph)	21 to 25 km/h (13.0 to 15.5 mph)	31 to 35 km/h (19.3 to 21.7 mph)	44 to 48 km/h (27.3 to 29.8 mph)	52 to 56 km/h (32.3 to 34.8 mph)

9. Compare the ECM commanded gear and the actual gear.

   Result

   System Condition		ECM Gear Shift Command						Proceed to
   		1st	2nd	3rd	4th	5th	6th
   Malfunction	Shift solenoid valve SL1 Stuck ON	1st	2nd	3rd	4th	4th	4th	A
   	Shift solenoid valve SL1 Stuck OFF	N*1	N*1	N*1	N*1	5th	6th
   	Shift solenoid valve SL2 Stuck ON	4th	4th	4th	4th	5th	6th	B
   	Shift solenoid valve SL2 Stuck OFF	1st	2nd	3rd	1st	N*1	N*1
   	Shift solenoid valve SL3 Stuck ON	2nd	2nd	3rd	4th	5th	6th	C
   	Shift solenoid valve SL3 Stuck OFF	1st	1st	3rd	4th	5th	N*1
   	Shift solenoid valve SL4 Stuck ON*3	3rd	3rd	3rd	4th	5th	5th	D
   	Shift solenoid valve SL4 Stuck OFF	1st	2nd	1st	4th	N*1	6th
   	Shift solenoid valve SLT Stuck ON	N*2	N*2	N*2	N*2	N*2	N*2	E
   	Shift solenoid valve SLT Stuck OFF*3	1st	2nd	3rd	4th	5th	6th

   HINT: 

   • *1: Neutral
   • *2: If shift solenoid valve SLT is stuck on, the line pressure will be low. Therefore, the amount of torque that can be transmitted by each gear is less than the normal limit. When the engine power exceeds this lowered limit, the engine speed will increase freely.
   • *3: When shift solenoid valve SLT is stuck off, gear shifting is normal.

Result: 

A 

GO TO DTC P0746. Refer to  DTC P0746: Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1) [12/2012 - ]  

Result: 

B 

GO TO DTC P0776. Refer to  DTC P0776: Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2) [12/2012 - ]  

Result: 

C 

GO TO DTC P0796. Refer to  DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) [12/2012 - ]  

Result: 

D 

GO TO DTC P2808. Refer to  DTC P2808: Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) [12/2012 - ]  

Result: 

E 

See step  4

1. Remove shift solenoid valve SLT.

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

   *1	Shift Solenoid Valve SLT

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	20°C (68°F)	5.0 to 5.6 Ω

3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

   OK

   Measurement Condition	Specified Condition
   Battery positive (+) with a 21 W bulb → Terminal 1 Battery negative (-) → Terminal 2	Valve moves and makes an operating noise

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SHIFT SOLENOID VALVE SLT. Refer to  DISASSEMBLY [12/2012 - ] 

Result: 

OK 

See step  5

1. Check the transmission valve body assembly.

   Refer to DISASSEMBLY [12/2012 - ]

   OK

   There are no foreign objects on any valve.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to  REMOVAL [12/2012 - 08/2017]  or  REMOVAL [08/2017 - ] 

Result: 

NG 

REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  REMOVAL [12/2012 - ]