Dtc P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve Slu)
DESCRIPTION
MONITOR DESCRIPTION
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
INSPECT SHIFT SOLENOID VALVE SLU
DTC P2759 Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) |
DESCRIPTION
Refer to P2757 (YARIS_NCP93 RM000000W8D0AVX_01.html).DTC No.
| DTC Detection Condition
| Trouble Area
|
P2759
| Open or short is detected in shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic).
| - Wire harness or connector
- Transmission wire
- Shift solenoid valve SLU
- ECM
|
MONITOR DESCRIPTION
When an open or short in the linear solenoid valve (SLU) circuit is detected, the ECM interprets this as a fault. The ECM turns on the MIL and stores the DTC.
MONITOR STRATEGY
Related DTCs
| P2759: Shift solenoid valve SLU/Range check
|
Required sensors/Components
| Shift solenoid valve SLU
|
Frequency of operation
| Continuous
|
Duration
| 1.0 second
|
MIL operation
| Immediate
|
Sequence of operation
| None
|
TYPICAL ENABLING CONDITIONS
The monitor runs whenever the following DTCs are not present.
| None
|
Solenoid current cut status
| Not cut
|
Battery voltage
| 11 V or more
|
CPU commanded duty ratio
| 19% or more
|
Ignition switch
| ON
|
Starter
| OFF
|
TYPICAL MALFUNCTION THRESHOLDS
Solenoid status (SLU) from MIC
| Fail
|
COMPONENT OPERATING RANGE
Solenoid status (SLU)
| Resistance: 5.0 to 5.6 Ω at 20°C (68°F)
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Perform the universal trip to clear permanent DTCs (YARIS_NCP93 RM000000W770MGX.html).
| 1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) |
Disconnect the transmission wire connector from the transaxle.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
4 (SL) - 9 (SLU-)
| 20°C (68°F)
| 5.0 to 5.6 Ω
|
4 (SL) - Body ground
| Always
| 10 kΩ or higher
|
9 (SLU-) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Component without harness connected
(Transmission Wire)
|
| 2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
Connect the transmission connector to the transaxle.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
C20-57 (SLU+) - C20-77 (SLU-)
| 20°C (68°F)
| 5.0 to 5.6 Ω
|
C20-57 (SLU+) - Body ground
| Always
| 10 kΩ or higher
|
C20-77 (SLU-) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*a
| Front view of wire harness connector
(to Transmission Wire)
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.INSPECT SHIFT SOLENOID VALVE SLU |
Remove shift solenoid valve SLU.
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
|
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 operating sounds.
Text in Illustration*a
| Component without harness connected
(Shift Solenoid Valve SLU)
|
