DTC    P2759    Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)

for Preparation Click here


DESCRIPTION

The amount of current flow to the solenoid is controlled by the ECM. During the lock-up operation, if the current increases, the lock-up hydraulic pressure increases.

C221407E01


DTC Code
DTC Detection Condition
Trouble Area
P2759
Open or short is detected in the shift solenoid valve SLU circuit for 1 second or more while driving (1-trip detection logic).
  1. Open or short in shift solenoid valve SLU circuit
  2. Shift solenoid valve SLU
  3. ECM

MONITOR DESCRIPTION

When an open or short in the shift solenoid valve SLU circuit is detected, the ECM determines that there is a malfunction. The ECM will illuminate the MIL and store 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 second
MIL operation
Immediately
Sequence of operation
None

TYPICAL ENABLING CONDITIONS


The monitor will run whenever the following DTCs are not present
None
Solenoid current cut status
Not cut
Battery voltage
11 V or more
Ignition switch
ON
Starter
OFF

TYPICAL MALFUNCTION THRESHOLDS


Solenoid status from MIC
Failure

COMPONENT OPERATING RANGE


Output signal duty
Less than 100%

WIRING DIAGRAM


C161203E86


INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs (Click here).
1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)


    C210154E22

  1. Disconnect the D83 transmission wire connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    17 (SLU+) - 6 (SLU-)
    		20°C (68°F)
    		5.0 to 5.6 Ω
    17 (SLU+) - Body ground
    		Always
    		10 kΩ or higher
    6 (SLU-) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration 
    *a
    		Component without harness connected
    (Transmission Wire)


NG
Go to step 3
OK


2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)


    C197707E92

  1. Disconnect the D74 ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D74-10 (SLU+) - D74-11 (SLU-)
    		20°C (68°F)
    		5.0 to 5.6 Ω
    D74-10 (SLU+) - Body ground
    		Always
    		10 kΩ or higher
    D74-11 (SLU-) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration 
    *a
    		Front view of wire harness connector
    (to ECM)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (Click here)  

3.INSPECT SHIFT SOLENOID VALVE SLU


    C209928E04

  1. Remove shift solenoid valve SLU.

  1. 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

  1. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

    OK:
    Measurement Condition
    		Specified Condition
    1. Battery positive (+) with a 21 W bulb → Terminal 2
    2. Battery negative (-) → Terminal 1
    		Valve moves and makes an operating noise
Text in Illustration 
*a
Component without harness connected
(Shift Solenoid Valve SLU)


NG
REPLACE SHIFT SOLENOID VALVE SLU (Click here)
OK

REPAIR OR REPLACE TRANSMISSION WIRE (Click here)