Lexus IS250 IS220d GSE20 ALE20 - A960E AUTOMATIC TRANSMISSION
INSPECT TRANSMISSION WIRE (SLT)
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
INSPECT SHIFT SOLENOID VALVE SLT
DTC P2716 Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
DESCRIPTION
Refer to DTC P2714 .
| 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 |
Reference (Using an oscilloscope):
Check the waveform between the terminals SLT+ and SLT- of the ECM connector
- Standard:
- Refer to the illustration.
| Terminal | SLT+ - SLT- |
| Tool setting | 5 V/DIV., 1 ms./DIV. |
| Vehicle 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 turn on the MIL and store the DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT TRANSMISSION WIRE (SLT) |
Disconnect the transmission wire connector from the transmission.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Specified Condition
20°C (68°F)13 (SLT+) - 5 (SLT-) 5.0 to 5.6 Ω
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for short):
Tester Connection Specified Condition 13 (SLT+) - Body ground 10 kΩ or higher 5 (SLT-) - Body ground ↑
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
Connect the transmission wire connector to the transmission.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Specified Condition
20°C (68°F)E4-35 (SLT+) - E4-34 (SLT-) 5.0 to 5.6 Ω
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for short):
Tester Connection Specified Condition E4-35 (SLT+) - Body ground 10 kΩ or higher E4-34 (SLT-) - Body ground ↑
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| OK | ||
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| 3.INSPECT SHIFT SOLENOID VALVE SLT |
Remove the shift solenoid valve SLT.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Specified Condition
20°C (68°F)1 - 2 5.0 to 5.6 Ω
Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.
- OK:
- The solenoid makes an operating sound.
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| OK | ||
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