Valve Body: Service and Repair
ON-VEHICLE SERVICE
Control Valve with TCM and A/T Fluid Temperature Sensor 2
COMPONENTS
VQ35HR models
VK45DE models
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery cable from the negative terminal.
2. Drain ATF through drain plug.
3. Disconnect heated oxygen sensor 2 connectors (A).
White arrow: Vehicle front
Black arrow: Bolt
4. Remove heated oxygen sensor 2 harness (B) from clips (1).
5. Remove bracket (2) from transmission assembly. (for VQ35HR models)
6. Disconnect A/T assembly harness connector.
7. Remove snap ring from A/T assembly harness connector.
8. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
9. Remove oil pan according to the following procedures.
a. VQ35HR models i. Remove clips (1).
ii. Remove oil pan (2) and oil pan gasket.
White arrow: Vehicle front
Black arrow: Oil pan mounting bolt
b. VK45DE models
i. Remove clips (1) and brackets (2).
ii. Remove oil pan (3) and oil pan gasket.
White arrow: Vehicle front
Black arrow: Oil pan mounting bolt
10. Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.
- If frictional material is detected, perform A/T fluid cooler cleaning. 5AT RE5R05A (VQ35HR) or 5AT RE5R05A (VK45DE).
11. Remove magnets from oil pan.
12. Disconnect A/T fluid temperature sensor 2 connector (A).
CAUTION:
Be careful not to damage connector.
13. Straighten terminal clips ( ) to free terminal cord assembly A/T fluid temperature sensor 2 harness.
14. Straighten terminal clip ( ) to free output speed sensor harness.
15. Disconnect output speed sensor connector (1).
CAUTION:
Be careful not to damage connector.
16. Remove bolts (A), (B) and (C) from control valve with TCM.
White arrow: Vehicle front
17. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
18. Remove A/T fluid temperature sensor 2 with bracket from control valve with TCM.
19. Remove bracket from A/T fluid temperature sensor 2.
20. Remove O-ring from A/T assembly harness connector.
21. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
22. Remove A/T assembly harness connector from control valve with TCM using flat-blade screwdriver.
23. Disconnect TCM connector (1) and transmission range switch connector (2).
CAUTION:
Be careful not to damage connectors.
Installation
CAUTION:
After completing installation, check A/T fluid leakage and A/T fluid level. Adjusting A/T Fluid (VQ35HR) or Checking A/T Fluid (VK45DE).
1. Connect TCM connector (1) and transmission range switch connector (2).
2. Install A/T assembly harness connector to control valve with
TCM.
3. Connect TCM connectors.
4. Install new O-ring in A/T assembly harness connector.
CAUTION:
- Never reuse O-ring.
- Apply ATF to O-ring.
5. Install A/T fluid temperature sensor 2 to bracket.
6. Install A/T fluid temperature sensor 2 (with bracket) in control valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to the specified torque. Refer to "COMPONENTS".
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
7. Install control valve with TCM in transmission case.
CAUTION:
- Make sure that input speed sensor securely installs input speed sensor holes (B).
A: Brake band
- Hang down output speed sensor harness toward outside so as not to disturb installation of control valve with TCM.
- Adjust A/T assembly harness connector of control valve with TCM to terminal hole of transmission case.
- Assemble it so that manual valve cutout is engaged with manual plate projection.
8. Install bolts (A), (B) and (C) in control valve with TCM. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After that tighten them in order (1 to 2 to 3), and then tighten other bolts.
Tighten control valve with TCM bolts to the specified torque.
White arrow: Vehicle front
9. Connect A/T fluid temperature sensor 2 connector (A).
10. Securely fasten terminal cord assembly and A/T fluid temperature sensor 2 harness with terminal clips ( ).
11. Connect output speed sensor connector (1).
12. Securely fasten output speed sensor (1) harness with terminal clip ( ).
13. Install magnets in oil pan.
14. Install oil pan according to the following procedures.
a. VQ35HR models i. Install oil pan gasket to oil pan.
CAUTION:
- Never reuse oil pan gasket.
- Install it in the direction to align hole positions.
- Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (2) (with oil pan gasket) and clips (1) to transmission case.
White arrow: Vehicle front
Black arrow: Oil pan mounting bolt
CAUTION:
- Install it so that drain plug comes to the position as shown in the figure.
- Be careful not to pinch harnesses.
- Completely remove all moisture, oil and old gasket, etc. from oil pan mounting surface.
iii. Tighten oil pan mounting bolts to the specified torque in numerical order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse oil pan mounting bolts.
b. VK45DE models i. Install oil pan gasket to oil pan.
CAUTION:
- Never reuse oil pan gasket.
- Install it in the direction to align hole positions.
- Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (3) (with oil pan gasket), clips (1) and brackets (2) to transmission case.
White arrow: Vehicle front
Black arrow: Oil pan mounting bolt
CAUTION:
- Install it so that drain plug comes to the position as shown in the figure.
- Be careful not to pinch harnesses.
- Completely remove all moisture, oil and old gasket, etc. from oil pan mounting surface.
- Be careful with installation direction of brackets (2).
iii. Tighten oil pan mounting bolts to the specified torque in numerical order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse oil pan mounting bolts.
15. Install drain plug to oil pan. Tighten drain plug to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse drain plug and drain plug gasket.
16. Pull up A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
17. Install snap ring to A/T assembly harness connector.
18. Connect A/T assembly harness connector.
19. Connect heated oxygen sensor 2 harness connectors (A).
White arrow: Vehicle front
Black arrow: Bolt
20. Install heated oxygen sensor 2 harness (B) to clips (1).
21. Install bracket (2) to transmission assembly. (for VQ35HR models)
22. Pour ATF into A/T assembly. (VQ35HR) or Changing A/T Fluid, "VK45DE : Changing A/T
Fluid" (VK45DE).
23. Connect the battery cable to the negative terminal.
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery cable from the negative terminal.
2. Drain ATF through drain plug.
3. Disconnect heated oxygen sensor 2 harness connectors (A).
White arrow: Vehicle front
Black arrow: Bolt
4. Remove heated oxygen sensor 2 harness (B) from clips (1).
5. Remove bracket (2) from transmission assembly. (for VQ35HR models)
6. Remove oil pan according to the following procedures.
a. VQ35HR models i. Remove clips (1).
ii. Remove oil pan (2) and oil pan gasket.
White arrow: Vehicle front
Black arrow: Bolt
b. VK45DE models i. Remove clips (1) and brackets (2).
ii. Remove oil pan (3) and oil pan gasket.
White arrow: Vehicle front
Black arrow: Bolt
7. Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.
- If frictional material is detected, perform A/T fluid cooler cleaning. 5AT RE5R05A (VQ35HR) or 5AT RE5R05A (VK45DE).
8. Disconnect A/T fluid temperature sensor 2 connector (A).
CAUTION:
Be careful not to damage connector.
9. Straighten terminal clip ( ) to free A/T fluid temperature sensor
2 harness.
10. Remove A/T fluid temperature sensor 2 with bracket from control valve with TCM.
11. Remove bracket from A/T fluid temperature sensor 2.
Installation
CAUTION:
After completing installation, check for A/T fluid leakage and A/T fluid level. Adjusting A/T Fluid (VQ35HR) or Checking A/T Fluid (VK45DE).
1. Install A/T fluid temperature sensor 2 to bracket.
2. Install A/T fluid temperature sensor 2 (with bracket) in control valve with TCM. Tighten A/T fluid temperature sensor 2 bolts to the specified torque. Refer to "COMPONENTS".
3. Connect A/T fluid temperature sensor 2 connector (A).
4. Securely fasten A/T fluid temperature sensor 2 harness with terminal clip ( ).
5. Install oil pan according to the following procedures.
a. VQ35HR models i. Install oil pan gasket to oil pan.
CAUTION:
- Never reuse oil pan gasket.
- Install it in the direction to align hole positions.
- Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (2) (with oil pan gasket) and clips (1) to transmission case.
White arrow: Vehicle front
Black arrow: Bolt
CAUTION:
- Install it so that drain plug comes to the position as shown in the figure.
- Be careful not to pinch harnesses.
- Completely remove all moisture, oil and old gasket, etc. from oil pan mounting surface.
iii. Tighten oil pan mounting bolts to the specified torque in numerical order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse oil pan mounting bolts.
b. VK45DE models i. Install oil pan gasket to oil pan.
CAUTION:
- Never reuse oil pan gasket.
- Install it in the direction to align hole positions.
- Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (3) (with oil pan gasket), clips (1) and brackets (2) to transmission case.
White arrow: Vehicle front
Black arrow: Bolt
CAUTION:
- Install it so that drain plug comes to the position as shown in the figure.
- Be careful not to pinch harnesses.
- Completely remove all moisture, oil and old gasket, etc. from oil pan mounting surface.
- Be careful with installation direction of brackets (2).
iii. Tighten oil pan mounting bolts to the specified torque in numerical order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse oil pan mounting bolts.
6. Install drain plug to oil pan. Tighten drain plug to the specified torque. Refer to "COMPONENTS".
CAUTION:
Never reuse drain plug and drain plug gasket.
7. Connect heated oxygen sensor 2 harness connectors (A).
White arrow: Vehicle front
Black arrow: Bolt
8. Install heated oxygen sensor 2 harness (B) to clips (1).
9. Install bracket (2) to transmission assembly. (for VQ35HR models)
10. Pour ATF into A/T assembly. (VQ35HR) or Changing A/T Fluid, "VK45DE : Changing A/T
Fluid" (VK45DE).
11. Connect the battery cable to the negative terminal.