- Short in shift solenoid valve SL circuit
- Shift solenoid valve SL
- Transmission wire
- TCM
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIND |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 08/2016] |
| Title: U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: P2769,P2770; Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); 2016 MY Sienna [12/2015 - 08/2016] | ||
|
DTC |
P2769 |
Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) |
|
DTC |
P2770 |
Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL) |
DESCRIPTION
Shift solenoid valve SL is turned on and off by signals from the TCM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
P2769 |
TCM detects a short in the shift solenoid valve SL circuit when the shift solenoid valve SL is operated (2 trip detection logic). |
|
|
P2770 |
TCM detects an open in the shift solenoid valve SL circuit when the shift solenoid valve SL is not operated (2 trip detection logic). |
|
Fail-safe function:
If the TCM detects a malfunction, it turns shift solenoid valve SL off.
MONITOR DESCRIPTION
Based on the signals from the throttle position sensor, the mass air flow meter and the crankshaft position sensor, the TCM sends a signal to shift solenoid valve SL to regulate the hydraulic pressure and provide smoother torque converter clutch engagement. Shift solenoid valve SL responds to commands from the TCM. The valve controls the lock-up relay valve to perform the torque-converter lock-up function. If the TCM detects an open or short circuit for shift solenoid valve SL, it will illuminate the MIL.
MONITOR STRATEGY
|
Related DTCs |
P2769: Shift solenoid valve SL/Range check (Low resistance) P2770: Shift solenoid valve SL/Range check (High resistance) |
|
Required sensors/Components |
Shift solenoid valve SL |
|
Frequency of operation |
Continuous |
|
Duration |
1 time |
|
MIL operation |
2 driving cycles |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
P2769: Range check:
|
The monitor will run whenever the following DTCs are not present |
None |
|
Command to solenoid |
ON |
|
Time after command to solenoid OFF to ON |
0.008 seconds or more |
P2770: Range check:
|
The monitor will run whenever the following DTCs are not present |
None |
|
Command to solenoid |
OFF |
|
Time after command to solenoid ON to OFF |
0.008 seconds or more |
TYPICAL MALFUNCTION THRESHOLDS
P2769: Range check:
|
Intelligent power MOS diagnosis fail signals detected while the solenoid is operated |
Fail at solenoid resistance: 8 Ω or less |
P2770: Range check:
|
Intelligent power MOS diagnosis fail signals detected while the solenoid is not operated |
Fail at solenoid resistance: 100 kΩ or more |
COMPONENT OPERATING RANGE
|
Shift solenoid valve SL |
Resistance: 11 to 15 Ω at 20°C (68°F) |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform the universal trip to clear permanent DTCs (See page
![2016 MY Sienna [12/2015 - 08/2016]; U660F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
PROCEDURE
|
1. |
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL) |
|
(a) Remove the TCM from the transaxle. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
6 (SL) - Body ground |
20°C (68°F) |
11 to 15 Ω |
Text in Illustration
|
*a |
Component without harness connected (Transmission Wire) |
| OK |
|
|
|
2. |
INSPECT SHIFT SOLENOID VALVE SL |
|
(a) Remove shift solenoid valve SL. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Solenoid Connector (SL) - Solenoid Body (SL) |
20°C (68°F) |
11 to 15 Ω |
Text in Illustration
|
*a |
Component without harness connected (Shift Solenoid Valve SL) |
| OK |
|
| NG |
|
|
|