Last Modified: 11-29-2007 1.6 C
Service Category: Drivetrain Section: Automatic Transmission/Transaxle
Model Year: 2008 Model: Sequoia Doc ID: RM000000W8A055X
Title: AB60E AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

P2716

Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

DESCRIPTION

Refer to DTC P0894 AB60E AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: DESCRIPTION (2008 Sequoia)+ .

DTC No.

DTC Detection Condition

Trouble Area

P2716

Conditions (a) or (b) below are detected for 1 second or more. (1 trip detection logic)

(a) SLT - terminal: 0 V

(b) SLT - terminal: 12 V

  • Open or short in shift solenoid valve SLT circuit
  • Shift solenoid valve SLT
  • ECM

Inspect using an oscilloscope:

Check the waveform of the ECM connector.



Standard:

Refer to the illustration.

Item

Content

Terminal No. (Symbol)

D56-9 (SLT+) - D56-8 (SLT-)

Tool setting

5 V/DIV., 1 msec./DIV.

Condition

Engine is idling

MONITOR DESCRIPTION

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

MONITOR STRATEGY

Related DTCs

P2716: Shift solenoid valve SLT/Range check

Required sensors/Components

Shift solenoid valve SLT

Frequency of operation

Continuous

Duration

1 second

MIL operation

Immediately

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

All

The monitor will run whenever the following DTCs are not present

None

Ignition switch

ON

Starter

OFF

All of the following conditions are met: Condition (A) and (B)

Condition (A)

Solenoid current cut status

Not cut

Target current

0.1 A or more

Battery voltage

11 V or more

Condition (B)

Battery voltage

8 V or more

TYPICAL MALFUNCTION THRESHOLDS

When either condition below is met: Condition (A) or (B)

Condition (A)

Solenoid status from Hybrid IC

Failure

Condition (B)

Hybrid IC status

Failure

COMPONENT OPERATING RANGE

Output signal duty

Less than 100%

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLT)


(a) Disconnect the D41 No. 1 transmission wire connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

13 (SLT+) - 5 (SLT-)

20°C (68°F)

5.0 to 5.6 Ω

13 (SLT+) - Body ground

Always

10 kΩ or higher

5 (SLT-) - Body ground

Always

10 kΩ or higher

OK

2.

CHECK HARNESS AND CONNECTOR (NO. 1 TRANSMISSION WIRE - ECM)



(a) Disconnect the D56 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D56-9 (SLT+) - D56-8 (SLT-)

20°C (68°F)

5.0 to 5.6 Ω

D56-9 (SLT+) - Body ground

Always

10 kΩ or higher

D56-8 (SLT-) - Body ground

Always

10 kΩ or higher

OK

3.

INSPECT SHIFT SOLENOID VALVE SLT

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

OK:

Valve moves and makes an operating noise.

OK