DESCRIPTION
Changing gears is performed by the ECM turning the shift solenoid valves SL1, SL2, SL3, SL4, SL5, S1 and S2 on and off.
If an open or short occurs in any of the shift solenoid valve circuits, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be driven. If all of the shift solenoid valves are malfunctioning, only the mechanical fluid pressure circuit will function and some manual operation will be possible. If an open or short occurs in a shift solenoid valve circuit, the ECM cuts power to the malfunctioning shift solenoid valve.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P075511 | Shift Solenoid "B" Circuit Short to Ground | 1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
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| Does not come on | DTC stored | SAE Code: P0976 |
MONITOR DESCRIPTION
This DTC indicates a short to ground in the shift solenoid valve S2 circuit. When there is an open or short in any shift solenoid valve circuit, the ECM detects the problem, illuminates the MIL and stores a DTC.
When the shift solenoid valve S2 is on, if its resistance is 8 Ω or less, the ECM determines there is a short to ground in the shift solenoid valve S2 circuit.
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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N/A |
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HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SHIFT SOLENOID VALVE S2) - ECM) |
(a) Disconnect the D2 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
D2-77 (S2) - Body ground | 20°C (68°F) | 11 to 15 Ω |
NG | GO TO STEP 3 |
|
2. | REPLACE ECM |
(a) Replace the ECM.
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NEXT | PERFORM A/T CODE REGISTRATION |
3. | CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
(a) Disconnect the D56 transmission wire connector.
(b) Disconnect the D2 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
D56-7 (SL) or D2-77 (S2) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) |
|
4. | INSPECT SHIFT SOLENOID VALVE S2 |
(a) Remove the shift solenoid valve S2. Click here |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
Shift solenoid valve S2 connector terminal - Shift solenoid valve S2 Body | 20°C (68°F) | 11 to 15 Ω |
(c) Connect a positive (+) lead from the battery to the terminal of the solenoid valve connector, and a negative (-) lead to the solenoid body. Check that the valve moves and makes an operating sound.
OK:
Valve moves and makes an operating sound.
OK | REPAIR OR REPLACE TRANSMISSION WIRE |
NG | REPLACE SHIFT SOLENOID VALVE S2 |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Sfi System: Engine Difficult to Start
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Audio And Visual System (for 8 Inch Display): Pointer Displayed/not Displayed Repeatedly
WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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Inspect the fuses for circuits r ...