Last Modified: 4-30-2014 6.6 C Doc ID: RM000000W8A00IX
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P2716; Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT); 2006 MY LX470 [05/2005 -        ]

DTC

P2716

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

DESCRIPTION

Refer to DTC P2714 2006 MY LX470 [05/2005 -        ]; A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P2714; Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)+ .

DTC No.

DTC Detection Condition

Trouble Area

P2716

Open or short is detected in shift solenoid valve SLT circuit for 1 second or more while driving (1 trip detection logic)

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

1. Reference: Inspect using an oscilloscope.

Check the waveform of the ECM connector.

Standard voltage:

Refer to illustration.

Item

Content

Tester Connection

E7-13 (SLT+) - E7-12 (SLT-)

Tool Setting

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

Condition

Engine idle speed

MONITOR DESCRIPTION

When an open or short in the linear solenoid valve SLT circuit is detected, the ECM interprets this as a fault. The ECM will illuminate 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 sec.

MIL operation

Immediate

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever this DTC is not present.

None

Solenoid current cut status

Not cut

CPU command duty

19% or more

Battery voltage

11 V or more

Ignition switch

ON

Starter

OFF

TYPICAL MALFUNCTION THRESHOLDS

Solenoid status (SLT) from MIC

Fail

COMPONENT OPERATING RANGE

Output signal duty

Less than 100%

WIRING DIAGRAM

Refer to DTC P2714 2006 MY LX470 [05/2005 -        ]; A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P2714; Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)+ .

INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLT)

(a) Disconnect the E1 wire connector.

(b) Measure the resistance of the transmission wire.

Standard resistance:

Tester Connection

Condition

Specified Condition

14 (SLT+) - 6 (SLT-)

20°C (68°F)

5.0 to 5.6 Ω

14 (SLT+) - Body ground

20°C (68°F)

10 kΩ or higher

6 (SLT-) - Body ground

20°C (68°F)

10 kΩ or higher

NG

GO TO STEP 3

OK

2.

CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)

(a) Disconnect the E7 ECM connector.

(b) Measure the resistance of the wire harness side connector.

Standard resistance:

Tester Connection

Condition

Specified Condition

E7-13 (SLT+) - E7-12 (SLT-)

20°C (68°F)

5.0 to 5.6 Ω

E7-13 (SLT+) - Body ground

20°C (68°F)

10 kΩ or higher

E7-12 (SLT-) - Body ground

20°C (68°F)

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

REPLACE ECM

3.

INSPECT SHIFT SOLENOID VALVE SLT

(a) Remove the shift solenoid valve SLT.

(b) Measure the resistance of the solenoid valve.

Standard resistance:

5.0 to 5.6 Ωat 20°C (68°F)

(c) 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 SLT

OK

REPAIR OR REPLACE TRANSMISSION WIRE