RM35X0E _52 Drivetrain _078741 AC60E AUTOMATIC TRANSMISSION / TRANSAXLE _0385245 AUTOMATIC TRANSMISSION SYSTEM(for 7GR-FKS) C

AC60E AUTOMATIC TRANSMISSION / TRANSAXLE  AUTOMATIC TRANSMISSION SYSTEM(for 7GR-FKS)  P280713  Pressure Control Solenoid "G" Circuit Open  


DESCRIPTION

Changing from 1st to 6th is performed by the ECM turning shift solenoid valves SL1, SL2, SL3 and SL4 on and off. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated.

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>AUTOMATIC TRANSMISSION SYSTEM (for 7GR-FKS)>FAIL-SAFE CHART

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P280713 Pressure Control Solenoid "G" Circuit Open An open or short circuit (output signal duty is 0% or 100%) is detected by the ECM in the shift solenoid valve SL4 circuit while driving and shifting gears (SL4 output signal duty is more than 0% and less than 100% under normal conditions) (1 trip detection logic).
·

Open or short in shift solenoid valve SL4 circuit

·

Shift solenoid valve SL4

·

ECM


Comes on DTC stored SAE Code:
P2810

MONITOR DESCRIPTION

This DTC indicates an open or short in the shift solenoid valve SL4 circuit. The ECM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any of the shift solenoid valve circuits, the ECM detects the problem and illuminates the MIL and stores the DTC. The ECM also performs the fail-safe function and turns the other normal shift solenoid valves on or off. (In case of an open or short circuit, the ECM stops sending current to the circuit.)

While driving and shifting gears, if the ECM detects an open or short in the shift solenoid valve SL4 circuit, the ECM determines there is a malfunction.

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>AUTOMATIC TRANSMISSION SYSTEM (for 7GR-FKS)>FAIL-SAFE CHART

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.


1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS on.

3.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4.

Turn the ignition switch off and wait for at least 30 seconds.

5.

Turn the ignition switch to ON and turn the GTS on.

6.

Start the engine.

7.

Perform the D Position Shift Test in Road Test.

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8.

Stop the vehicle.

9.

Enter the following menus: Powertrain / Transmission / Utility / All Readiness.

10.

Input the DTC: P280713.

11.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions


N/A
·

Unable to perform DTC judgment

·

Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.




WIRING DIAGRAM

C351511
1.51,1.708 5.177,1.906 3.667,0.198 10 false Shift Solenoid Valve SL4 1.083,1.302 1.24,1.5 0.156,0.198 10 false 1 1.083,2.115 1.24,2.313 0.156,0.198 10 false 2 3.469,1.104 4.083,1.302 0.615,0.198 10 false SL4+ 3.479,2.073 4.094,2.271 0.615,0.198 10 false SL4- 3.917,1.104 4.229,1.302 0.313,0.198 10 false 23 3.906,2.083 4.219,2.281 0.313,0.198 10 false 24 4.958,1.115 5.167,1.313 0.208,0.198 10 false 8 4.938,2.073 5.177,2.271 0.24,0.198 10 false 7 5.177,1.115 5.792,1.313 0.615,0.198 10 false SL4+ 5.198,2.073 5.813,2.271 0.615,0.198 10 false SL4- 1.49,2.667 1.948,2.865 0.458,0.198 10 false E29 1.49,2.865 4.094,3.063 2.604,0.198 10 false Transmission Wire 5.604,3.01 6.063,3.208 0.458,0.198 10 false E4 5.604,3.188 6.063,3.385 0.458,0.198 10 false ECM 5.802,0.781 6.417,0.979 0.615,0.198 10 false 12 V

CAUTION / NOTICE / HINT

NOTICE:

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>AUTOMATIC TRANSMISSION SYSTEM (for 7GR-FKS)>PRECAUTION


HINT:

The following table shows normal operation of the shift solenoid valve SL4 when the shift lever is in D:

ECM commanded gear 1st 2nd 3rd 4th 5th 6th
Shift solenoid valve SL4 OFF OFF ON OFF ON OFF


PROCEDURE

1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL4)
a.
C319326C10
1.75,1.74 1.969,1.365 true 2.385,1.708 2.188,1.375 true 0.156,0.104 0.469,0.302 0.313,0.198 10 false *a 1.521,1.771 1.99,1.969 0.469,0.198 10 false SL4- 2.24,1.771 2.708,2.031 0.469,0.26 10 false SL4+
*a Component without harness connected
(Transmission Wire)


Disconnect the transmission wire connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
23 (SL4+) - 24 (SL4-) 20°C (68°F) 5.0 to 5.6 Ω
23 (SL4+) - Body ground Always 10 kΩ or higher
24 (SL4-) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

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

NG

3.INSPECT SHIFT SOLENOID VALVE SL4
2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
a.
C318003
1.771,0.292 2.167,0.51 0.396,0.219 2.802,2.823 2.271,1.885 true 1.885,2.823 2.198,1.885 true 0.104,0.104 0.417,0.26 0.313,0.156 10 false *a 2.604,2.875 3.333,3.073 0.729,0.198 10 false 7 (SL4-) 1.646,2.885 2.719,3.083 1.073,0.198 10 false 8 (SL4+) 1.885,0.333 2.198,0.531 0.313,0.198 10 false E4
*a Rear view of wire harness connector
(to ECM)


Disconnect the ECM connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
E4-8 (SL4+) - E4-7 (SL4-) 20°C (68°F) 5.0 to 5.6 Ω
E4-8 (SL4+) - Body ground Always 10 kΩ or higher
E4-7 (SL4-) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

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NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT SHIFT SOLENOID VALVE SL4
a.
C201747C15
1.49,0.875 0.635,0.646 false 1.781,0.865 2.479,0.625 false 1.49,3.125 0.635,2.896 false 1.781,3.125 2.479,2.885 false 2.542,0.552 2.719,0.75 0.177,0.198 10 false 1 0.51,0.563 0.688,0.76 0.177,0.198 10 false 2 1.177,4.198 1.385,4.406 0.208,0.208 10 false (-) 1.917,4.208 2.146,4.406 0.229,0.198 10 false (+) 2.563,2.792 2.74,2.99 0.177,0.198 10 false 1 0.49,2.813 0.667,3.01 0.177,0.198 10 false 2 0.135,0.135 0.354,0.344 0.219,0.208 10 false *1
*1 Shift Solenoid Valve SL4


Remove shift solenoid valve SL4.

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b.

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



c.

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
·

Battery positive (+) with a 21 W bulb → Terminal 1

·

Battery negative (-) → Terminal 2


Valve moves and makes an operating noise



Result:
Proceed to
OK
NG



OK

REPLACE TRANSMISSION WIRE

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>TRANSMISSION WIRE>REMOVAL


NG

REPLACE SHIFT SOLENOID VALVE SL4

Click hereDrivetrain>AC60E (AUTOMATIC TRANSMISSION / TRANSAXLE)>VALVE BODY ASSEMBLY>DISASSEMBLY