DESCRIPTION
The amount of current flow to the solenoid is controlled by the duty ratio* of the ECM output signal. During the lock-up operation, if the duty ratio increases, the lock-up hydraulic pressure increases.
HINT:
*: The duty ratio is the ratio of the current ON time (A) to the total of the current ON and OFF time (A + B). Duty Ratio (%) = A / (A + B) x 100
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
P2759 |
Open or short is detected in the shift solenoid valve SLU circuit for 1 sec. or more while driving (1-trip detection logic). |
|
MONITOR DESCRIPTION
When an open or short in the shift solenoid valve (SLU) circuit is detected, the ECM determines there is a malfunction. The ECM will turn on the MIL and store this 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 sec. |
MIL operation |
Immediate |
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
All
The monitor will run whenever the following DTCs are not stored |
None |
Battery voltage |
8 V or higher |
Ignition switch |
ON |
Starter |
OFF |
Solenoid current cut status |
Not cut |
Battery voltage |
11 V or higher |
Target duty cycle |
19% or more |
Target duty cycle |
100% |
TYPICAL MALFUNCTION THRESHOLDS
Solenoid status from solenoid driver MIC |
Failure |
COMPONENT OPERATING RANGE
Output signal duty |
Less than 100% |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform the universal trip to clear permanent DTCs (See page ).
PROCEDURE
1. |
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) |
(a) Disconnect the B32 transmission wire connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
13 (SLU+) - 5 (SLU-) |
20°C (68°F) |
5.0 to 5.6 Ω |
13 (SLU+) - Body ground |
Always |
10 kΩ or higher |
5 (SLU-) - Body ground |
Always |
10 kΩ or higher |
*a |
Component without harness connected (Transmission Wire) |
NG |
GO TO STEP 3 |
|
2. |
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
(a) Disconnect the B37 ECM connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B37-33 (SLU+) - B37-32 (SLU-) |
20°C (68°F) |
5.0 to 5.6 Ω |
B37-33 (SLU+) - Body ground |
Always |
10 kΩ or higher |
B37-32 (SLU-) - Body ground |
Always |
10 kΩ or higher |
*a |
Rear view of wire harness connector (to ECM) |
OK |
REPLACE ECM |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
3. |
INSPECT SHIFT SOLENOID VALVE SLU |
OK |
REPAIR OR REPLACE TRANSMISSION WIRE |
NG |
REPLACE SHIFT SOLENOID VALVE SLU |
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...
Clearance Warning Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery terminal to disable the SRS system.
N ...