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 |
---|---|---|---|---|---|---|
P075015 | Shift Solenoid "A" Circuit Short to Battery or Open | 1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
|
| Comes on | DTC stored | SAE Code: P0974 |
MONITOR DESCRIPTION
This DTC indicates an open or short to +B in the shift solenoid valve S1 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 S1 is off, if its resistance is 100 kΩ or more, the ECM determines there is an open or short to +B in the shift solenoid valve S1 circuit.
MONITOR STRATEGY
Related DTCs | P0974: Shift solenoid valve S1/Range check (High resistance) |
Required sensors/Components | Shift solenoid valve S1 |
Frequency of operation | Continuous |
Duration | 2 times |
MIL operation | Immediate |
Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not present | None |
Battery voltage | 8 V or more |
Starter | OFF |
Command to solenoid | OFF |
Time after command to solenoid (ON to OFF) | 0.008192 sec. or more |
TYPICAL MALFUNCTION THRESHOLDS
Solenoid terminal voltage level | High (0.065536 sec. or more) |
COMPONENT OPERATING RANGE
Shift solenoid valve S1 | Resistance: 11 to 15 Ω at 20°C (68°F) |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Click here
Click here
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
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
Refer to DTC P075011.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SHIFT SOLENOID VALVE S1) - 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 |
---|---|---|
D2-62 (S1) - Body ground | 20°C (68°F) | 11 to 15 Ω |
NG | GO TO STEP 3 |
|
2. | REPLACE ECM |
(a) Replace the ECM.
Click here
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 |
---|---|---|
D56-18 (SR) - D2-62 (S1) | Always | Below 1 Ω |
D56-18 (SR) or D2-62 (S1) - Other terminals | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) |
|
4. | INSPECT SHIFT SOLENOID VALVE S1 |
(a) Remove the shift solenoid valve S1. 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 S1 connector terminal - Shift solenoid valve S1 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 S1 |
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