U340E AUTOMATIC TRANSMISSION / TRANSAXLE  AUTOMATIC TRANSAXLE SYSTEM  P2716  Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)  


DESCRIPTION

The shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and vehicle speed sensor. The ECM adjusts the current to the shift solenoid valve SLT to control the hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.

C233512E01
1.021,0.51 2.116,0.837 1.095,0.327 10 Line Pressure Control Pressure 2.037,1.523 3.591,1.678 1.554,0.156 10 Current Flow to Solenoid 4.084,0.217 4.853,0.364 0.769,0.147 10 Spool Valve 4.809,1.377 5.264,1.525 0.455,0.148 10 Sleeve 5.545,1.526 6.398,1.678 0.853,0.152 10 Solenoid Coil 4.843,0.304 5.048,0.731 false 5.024,1.377 5.254,0.932 false 6.3,0.52 5.95,1.498 5.95,1.498 6.313,0.959 false

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2716 Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) Open or short is detected in shift solenoid valve SLT circuit for 1 second or more while driving (1-trip detecting logic)
·

Open or short in shift solenoid valve SLT circuit

·

Shift solenoid valve SLT

·

ECM


Comes on DTC stored

MONITOR DESCRIPTION

When an open or short in the shift solenoid valve SLT circuit is detected, the ECM interprets this as a malfunction. The ECM will illuminate the MIL and store this DTC.

WIRING DIAGRAM

C155865E36
0.594,2.646 0.958,2.802 0.365,0.156 10 false B55 0.594,2.802 2.208,3.135 1.615,0.333 10 false Transmission Wire 2.208,1.25 2.573,1.417 0.365,0.167 10 false SLT+ 5.844,1.25 6.208,1.417 0.365,0.167 10 false SLT+ 2.667,1.25 2.792,1.417 0.125,0.167 10 false 3 2.667,2.229 2.792,2.396 0.125,0.167 10 false 8 2.208,2.229 2.573,2.396 0.365,0.167 10 false SLT- 5.854,2.01 6.219,2.177 0.365,0.167 10 false SLT- 6.031,2.688 6.396,2.854 0.365,0.167 10 false ECM 5.49,1.156 5.781,1.396 0.292,0.24 10 false B56 5.49,2.146 5.771,2.354 0.281,0.208 10 false B56 6,0.844 6.281,1.052 0.281,0.208 10 false +B 5.552,1.938 5.771,2.115 0.219,0.177 10 false 53 5.542,0.948 5.958,1.094 0.417,0.146 10 false 54

CAUTION / NOTICE / HINT

NOTICE:

Perform initialization when parts related to the automatic transaxle are replaced.

Click hereDrivetrain>U340E AUTOMATIC TRANSMISSION / TRANSAXLE>AUTOMATIC TRANSAXLE SYSTEM>PRECAUTION


PROCEDURE

1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLT)
a.
C155864C29
1.823,1.688 2.417,1.083 false 1.823,2 2.417,2.667 false 0.229,0.198 0.542,0.354 0.313,0.156 10 false *a 2.458,0.917 2.979,1.156 0.521,0.24 10 false SLT+ 2.448,2.688 2.969,2.927 0.521,0.24 10 false SLT-
*a Component without harness connected
(Transmission Wire)


Disconnect the transmission wire connector from the transaxle.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
3 (SLT+) - 8 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω



c.

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

Standard Resistance (Check for short):
Tester Connection Condition Specified Condition
3 (SLT+) - Body ground Always 10 kΩ or higher
8 (SLT-) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

NG

3.INSPECT SHIFT SOLENOID VALVE SLT
2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
a.

Connect the transmission wire connector to the transaxle.


b.
C228647C18
1.5,0.729 1.885,0.979 0.385,0.25 0.646,2.656 1.042,1.729 false 1.479,2.646 1.125,1.729 false 0.177,0.167 0.49,0.323 0.313,0.156 10 false *a 1.552,0.76 1.875,0.979 0.323,0.219 10 false B56 1.344,2.698 1.823,2.896 0.479,0.198 10 false SLT+ 0.479,2.698 0.958,2.896 0.479,0.198 10 false SLT-
*a Front view of wire harness connector
(to ECM)


Disconnect the ECM connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
B56-54 (SLT+) - B56-53 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω



d.

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

Standard Resistance (Check for short):
Tester Connection Condition Specified Condition
B56-54 (SLT+) - Body ground Always 10 kΩ or higher
B56-53 (SLT-) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>ECM>COMPONENTS


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT SHIFT SOLENOID VALVE SLT
a.
C155176C06
1,0.667 1.438,1.146 false 1,2.667 1.427,3.146 false 2.167,0.667 1.75,1.167 false 2.167,2.667 1.75,3.146 false 0.125,0.083 0.552,0.365 0.427,0.281 10 false *1 0.865,0.458 1.292,0.74 0.427,0.281 10 false 1 2.24,0.469 2.667,0.75 0.427,0.281 10 false 2 0.865,2.458 1.292,2.74 0.427,0.281 10 false 1 2.25,2.458 2.677,2.74 0.427,0.281 10 false 2 1.323,3.667 1.75,3.948 0.427,0.281 10 false (-) 2.083,3.677 2.51,3.958 0.427,0.281 10 false (+)
*1 Shift Solenoid Valve SLT


Remove the shift solenoid valve SLT.


b.

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



c.

Connect a battery positive (+) lead with a 21 W bulb to terminal 2 and a negative (-) lead to terminal 1 of the solenoid valve connector, then check that the valve moves and makes an operating sound.

OK:

Valve moves and makes an operating sound.



Result:
Proceed to
OK
NG



OK

REPAIR OR REPLACE TRANSMISSION WIRE

Click hereDrivetrain>U340E AUTOMATIC TRANSMISSION / TRANSAXLE>TRANSMISSION WIRE>COMPONENTS


NG

REPLACE SHIFT SOLENOID VALVE SLT

Click hereDrivetrain>U340E AUTOMATIC TRANSMISSION / TRANSAXLE>VALVE BODY ASSEMBLY>COMPONENTS