DESCRIPTION
Refer to DTC P074512.
Click here
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P074514 | Pressure Control Solenoid "A" Circuit Short to Ground or Open | While the vehicle is being driven so that gear changes occur, a short to ground or open is detected in the solenoid (SL1) valve circuit for 1 second (1-trip detection logic). |
| Comes on | DTC stored | SAE Code: P0962 |
MONITOR DESCRIPTION
This DTC indicates an open or short to ground in the solenoid (SL1) valve circuit. The ECM commands gear shifts by turning the solenoid valves on or off. When there is an open or short in any solenoid valve circuit, the ECM detects the problem, illuminates the MIL and stores a DTC.
The ECM performs the fail-safe function and turns the other normal solenoid valves on or off. In the case of an open or short circuit, the ECM stops sending current to the open or shorted solenoid.
MONITOR STRATEGY
Related DTCs | P0962: Solenoid (SL1) valve/Range check (Low current) |
Required sensors/components | Solenoid (SL1) valve |
Frequency of operation | Continuous |
Duration | 1 sec. |
MIL operation | Immediate |
Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored | None |
Solenoid current cut status | Not cut |
Engine switch | On (IG) |
Starter | OFF |
Battery voltage | 10.5 V or more |
Target current (0.1 sec. or more) | 0.2 A or more |
TYPICAL MALFUNCTION THRESHOLDS
Solenoid current | Less than 0.075 A |
COMPONENT OPERATING RANGE
Solenoid current | 0.075 A or more |
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 |
|
ABNORMAL |
|
INCOMPLETE |
|
N/A |
|
HINT:
WIRING DIAGRAM
Refer to DTC P074512.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. | CHECK HARNESS AND TRANSMISSION WIRE (TRANSMISSION WIRE (SOLENOID (SL1) VALVE) - ECM) |
(a) Disconnect the C78 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C78-8 (SL1+) - C78-7 (SL1-) | 20°C (68°F) | 5.0 to 5.6 Ω |
C78-8 (SL1+) or C78-7 (SL1-) - Body ground and other terminals | Always | 10 kΩ or higher |
NG | GO TO STEP 3 |
|
2. | REPLACE ECM |
(a) Replace the ECM.
Click here
NEXT | PERFORM REGISTRATION |
3. | CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
(a) Disconnect the C30 transmission wire connector.
(b) Disconnect the C78 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C30-17 (SL1+) - C78-8 (SL1+) | Always | Below 1 Ω |
C30-16 (SL1-) - C78-7 (SL1-) | Always | Below 1 Ω |
C30-17 (SL1+) or C78-8 (SL1+) - Body ground and other terminals | Always | 10 kΩ or higher |
C30-16 (SL1-) or C78-7 (SL1-) - Body ground and other terminals | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) |
|
4. | INSPECT SOLENOID (SL1) VALVE |
(a) Remove the solenoid (SL1) valve. Click here |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
Solenoid (SL1) valve connector terminal 1 - terminal 2 | 20°C (68°F) | 5.0 to 5.6 Ω |
(c) Connect a positive (+) lead from the battery with a 21 W bulb to terminal 1 and a negative (-) lead to terminal 2 of the solenoid valve connector. 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 SOLENOID (SL1) VALVE |