ECU ACURA CSX 2006 Service Repair Manual

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14-217
Shift Solenoid Valve and Shift Solenoid Wire Harness Replacement
A
18x1.5mm
49 N·m
(5.0 kgf·m, 36 lbf·ft) B A
B
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
B
C
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
A
B
1. Raise the vehicle on a lift, or apply the parking
brake, block the rear wheels, and raise the front of
the vehicle. Make sure it is securely supported.
2. Remove the splash shield.
3. Remove the drain plug (A), and drain the automatic transmission fluid (ATF).
4. Reinstall the drain plug with a new sealing washer (B).
5. Do the battery removal procedure (see page 22-69).
6. Remove the intake air duct (see page 11-348) and the air cleaner assembly (see page 11-345).
7. Remove the battery tray, the battery base, and the resonator. 8. Remove the shift solenoid valve cover (A), the
dowel pins (B), and the gasket (C).
9. Disconnect the shift solenoid valve connectors.  If replacing the shift solenoid valve(s), go to step10.
 If replacing the shift solenoid wire harness, remove the shift solenoid wire harness connector
(A), and replace it. Install a new O-ring (B) on a
new shift solenoid wire harness connector, and
install it in the transmission housing, then go to
step 15.
(cont’d)
Replace. Replace.
Replace.
08/08/21 14:46:45 61SNR030_140_0219
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14-218Automatic Transmission
Shift Solenoid Valve and Shift Solenoid Wire Harness Replacement (cont’d)
F
6x1.0mm
12 N·m
(1.2 kgf·m,
8.7 lbf·ft)
A
D E
FB
F
C
G
H
G G
G
G
10. Remove the mounting bolts (F), then hold the shift
solenoid valve body and remove the shift solenoid
valves. Do not hold the connector to remove the
shift solenoid valve.
11. Install new O-rings (two O-rings per solenoid valve) (G) on the reused solenoid valve.
NOTE: A new solenoid valve comes with new
O-rings. If you install a new solenoid valve, use the
O-rings provided with it.
12. Install shift solenoid valves C (brown connector), D (black connector), and E (black connector) by
holding the shift solenoid valve body; make sure
the mounting bracket contacts the servo body.
NOTE: Do not hold the shift solenoid valve
connector to install the shift solenoid valve. Be sure
to hold the shift solenoid valve body.
13. Install shift solenoid valve B (brown connector) by holding the shift solenoid valve body; make sure
the mounting bracket contacts the bracket of shift
solenoid valve E. 14. Install shift solenoid valve A (brown connector) by
holding the shift solenoid valve body; make sure
the mounting bracket contacts the bracket of shift
solenoid valve D.
NOTE: Do not install shift solenoid valves A and B
before installing shift solenoid valve D and E. If
shift solenoid valve A or B is installed before
installing shift solenoid valve D or E, it may
damage to hydraulic control system.
15. Connect YEL, WHT, and WHT harnesses terminal (H) to shift solenoid valve D. The ATF temperature
sensor is installed in the connector.
16. Connect the shift solenoid valve connectors:  BLU wire to shift solenoid valve A
 ORN wire to shift solenoid valve B
 GRN wire to shift solenoid valve C
 RED wire to shift solenoid valve E
17. Install a new gasket, the dowel pins, and the shift solenoid valve cover.
18. Check the connector for rust, dirt, or oil, then connect the connector securely.
19. Refill the transmission with ATF (see step 5 on page 14-232).
20. Install the battery base, the battery tray, and the resonator.
21. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
22. Do the battery installation procedure (see page 22-69).
23. Install the splash shield.
08/08/21 14:46:45 61SNR030_140_0220
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14-220Automatic Transmission
A/T Clutch Pressure Control Solenoid Valve A Test (cont’d)
A
C B
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
E
D
9. Remove the mounting bolts and A/T clutch
pressure control solenoid valve A.
10. Remove the ATF pipe (B), the ATF joint pipes (C), the O-rings (D), and the gasket (E).
11. Check the fluid passage of the solenoid valve for contamination. 12. Connect a jumper wire from the negative battery
terminal to A/T clutch pressure control solenoid
valve A connector terminal No. 2, and connect
another jumper wire from the positive battery
terminal to connector terminal No. 1. Make sure
A/T clutch pressure control solenoid valve A moves.
13. Disconnect one of the jumper wires, and check valve movement at the fluid passage in the valve
body mounting surface. If the valve binds or moves
sluggishly, or if the solenoid valve does not operate,
replace A/T clutch pressure control solenoid
valve A.
14. Clean the mounting surfaces and the fluid passages of the A/T clutch pressure control solenoid valve
body and the transmission housing.
15. Install a new gasket on the transmission housing, and install the ATF pipe and the ATF joint pipes.
NOTE: Be sure to install a new gasket with the blue
side toward the transmission housing.
16. Install new O-rings over the ATF joint pipes.
17. Install A/T clutch pressure control solenoid valve A.
18. Check the connectors for rust, dirt, or oil, clean or repair if necessary, then connect the connectors
securely.
19. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace.
Replace.
08/08/21 14:46:46 61SNR030_140_0222
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DYNOMITE -2009-

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14-221
A/T Clutch Pressure Control Solenoid Valve A Replacement
A
C B
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
E
D
1. Remove the intake air duct (see page 11-348) and
the air cleaner assembly (see page 11-345).
2. Disconnect the A/T clutch pressure control solenoid valve A connector.
3. Remove the mounting bolts and A/T clutch pressure control solenoid valve A.
4. Remove the ATF pipe (B), the ATF joint pipes (C), the O-rings (D), and the gasket (E). 5. Clean the mounting surface and the fluid passage
of the transmission housing.
6. Install a new gasket on the transmission housing, and install the ATF pipe and the ATF joint pipes.
NOTE: Be sure to install a new gasket with the blue
side toward the transmission housing.
7. Install new O-rings over the ATF joint pipes.
8. Install a new A/T clutch pressure control solenoid valve A.
9. Check the connector for rust, dirt, or oil, and clean or repair if necessary, then connect it securely.
10. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace.
Replace.
08/08/21 14:46:47 61SNR030_140_0223
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DYNOMITE -2009-

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14-223
AD
BC
A
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft) F
E
B
9. Remove the mounting bolts, the harness clampbrackets (A), and A/T clutch pressure control
solenoid valves B and C.
10. Remove the ATF joint pipes (D), the O-rings (E), and the gasket (F).
11. Check the fluid passage of the solenoid valves for contamination. 12. Connect a jumper wire from the negative battery
terminal to A/T clutch pressure control solenoid
valve B connector terminal No. 2, and connect
another jumper wire from the positive battery
terminal to connector terminal No. 1. Make sure
A/T clutch pressure control solenoid valve B moves.
13. Disconnect one of the jumper wires, and check valve movement at the fluid passage in the valve
body mounting surface. If the valve binds or moves
sluggishly, or if the solenoid valve does not operate,
replace A/T clutch pressure control solenoid valves
BandC.
14. Clean the mounting surfaces and the fluid passages of the A/T clutch pressure control solenoid valve
body and the transmission housing.
15. Install a new gasket on the transmission housing.
NOTE: Be sure to install a new gasket with the blue
side toward the transmission housing.
16. Install the ATF joint pipes, and install new O-rings over the ATF joint pipes.
17. Install A/T clutch pressure control solenoid valves B and C.
18. Check the connectors for rust, dirt, or oil, clean or repair if necessary, then connect the connectors
securely.
19. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace.
Replace.
08/08/21 14:46:48 61SNR030_140_0225
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DYNOMITE -2009-

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14-225
AD
BC
A
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft) F
E
C
9. Remove the mounting bolts, the harness clampbrackets (A), and A/T clutch pressure control
solenoid valves B and C.
10. Remove the ATF joint pipes (D), the O-rings (E), and the gasket (F).
11. Check the fluid passage of the solenoid valves for contamination. 12. Connect a jumper wire from the negative battery
terminal to A/T clutch pressure control solenoid
valve C connector terminal No. 2, and connect
another jumper wire from the positive battery
terminal to connector terminal No. 1. Make sure
A/T clutch pressure control solenoid valve C moves.
13. Disconnect one of the jumper wires, and check valve movement at the fluid passage in the valve
body mounting surface. If the valve binds or moves
sluggishly, or if the solenoid valve does not operate,
replace A/T clutch pressure control solenoid valves
BandC.
14. Clean the mounting surfaces and the fluid passages of the A/T clutch pressure control solenoid valve
body and the transmission housing.
15. Install a new gasket on the transmission housing.
NOTE: Be sure to install a new gasket with the blue
side toward the transmission housing.
16. Install the ATF joint pipes, and install new O-rings over the ATF joint pipes.
17. Install A/T clutch pressure control solenoid valves B and C.
18. Check the connectors for rust, dirt, or oil, clean or repair if necessary, then connect the connectors
securely.
19. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace.
Replace.
08/08/21 14:46:49 61SNR030_140_0227
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DYNOMITE -2009-

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14-226Automatic Transmission
A/T Clutch Pressure Control Solenoid Valve B and C Replacement
A
D
BC
A
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft) F
E
1. Remove the intake air duct (see page 11-348) and the air cleaner assembly (see page 11-345).
2. Disconnect the A/T clutch pressure control solenoid valves B and C connectors.
3. Remove the mounting bolts, the harness clamp brackets (A), and A/T clutch pressure control
solenoid valves B and C.
4. Remove the ATF joint pipes (D), the O-rings (E), and the gasket (F). 5. Clean the mounting surface and the fluid passage
of the transmission housing.
6. Install a new gasket on the transmission housing, and install the ATF joint pipes.
NOTE: Be sure to install a new gasket with the blue
side toward the transmission housing.
7. Install new O-rings over the ATF joint pipes.
8. Install new A/T clutch pressure control solenoid valves B and C, and harness clamp brackets.
9. Check the connectors for rust, dirt, or oil, clean or repair if necessary, then connect it securely.
10. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace.
Replace.
08/08/21 14:46:49 61SNR030_140_0228
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DYNOMITE -2009-

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14-22714-227
Input Shaft (Mainshaft) Speed
Sensor Replacement Output Shaft (Countershaft) Speed
Sensor Replacement
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
B
C
A
B6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
A
C
1. Remove the intake air duct (see page 11-348) and the air cleaner assembly (see page 11-345).
2. Disconnect the input shaft (mainshaft) speed sensor connector (A), and remove the input shaft
(mainshaft) speed sensor (B) with the O-ring (C).
3. Install a new O-ring on a new input shaft (mainshaft) speed sensor, then install the input
shaft (mainshaft) speed sensor in the transmission
housing.
4. Check the connector for rust, dirt, or oil, clean or repair if necessary, then connect the connector
securely.
5. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348). 1. Remove the intake air duct (see page 11-348) and
the air cleaner assembly (see page 11-345).
2. Disconnect the output shaft (countershaft) speed sensor connector (A), and remove the output shaft
(countershaft) speed sensor (B).
3. Install a new O-ring on a new output shaft (countershaft) speed sensor, then install the output
shaft (countershaft) speed sensor in the
transmission housing.
4. Check the connector for rust, dirt, or oil, clean or repair if necessary, then connect the connector
securely.
5. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
Replace. Replace.
08/08/21 14:46:50 61SNR030_140_0229
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14-22814-228 Automatic Transmission
2nd Clutch Transmission Fluid
Pressure Switch Replacement
3rd Clutch Transmission Fluid
Pressure Switch Replacement
A
B
A
20 N·m (2.0 kgf·m, 14 lbf·ft) B
B
20 N·m
(2.0 kgf·m, 14 lbf·ft)
A C
1. Remove the intake air duct (see page 11-348) and
the air cleaner assembly (see page 11-345).
2. Remove the harness cover (A) from its bracket (B).
3. Disconnect the 2nd clutch transmission fluid pressure switch connector, and remove the 2nd
clutch transmission fluid pressure switch (A).
4. Install a new 2nd clutch transmission fluid pressure switch with a new sealing washer (B), and tighten
the metal part of the switch, not the plastic part.
5. Check the connector for rust, dirt, or oil, clean or repair if necessary, then connect the connector
securely.
6. Install the harness cover on its bracket.
7. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348). 1. Do the battery removal procedure (see page 22-69).
2. Remove the intake air duct (see page 11-348) and
the air cleaner assembly (see page 11-345).
3. Remove the battery tray, the battery base, and the resonator.
4. Disconnect the 3rd clutch transmission fluid pressure switch connector (A), then remove the 3rd
clutch transmission fluid pressure switch (B) with
the sealing washer (C).
5. Install a new 3rd clutch transmission fluid pressure switch with a new sealing washer, and tighten the
metal part of the switch, not the plastic part.
6. Check the connector for rust, dirt, or oil, clean or repair if necessary, then connect the connector
securely.
7. Install the battery tray, the battery base, and the resonator.
8. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
9. Do the battery installation procedure (see page 22-69).
Replace.
Replace.
08/08/21 14:46:50 61SNR030_140_0230
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DYNOMITE -2009-

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14-229
ATF Temperature Sensor Test/Replacement
A
18x1.5mm
49 N·m
(5.0 kgf·m, 36 lbf·ft) B A
B
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
B
C
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
1. Raise the vehicle on a lift, or apply the parkingbrake, block the rear wheels, and raise the front of
the vehicle. Make sure it is securely supported.
2. Remove the splash shield.
3. Remove the drain plug (A), and drain the automatic transmission fluid (ATF).
4. Reinstall the drain plug with a new sealing washer (B).
5. Do the battery removal procedure (see page 22-69).
6. Remove the intake air duct (see page 11-348) and the air cleaner assembly (see page 11-345).
7. Remove the battery tray, the battery base, and the resonator. 8. Remove the shift solenoid valve cover (A), the
dowel pins (B), and the gasket (C).
9. Disconnect the shift solenoid wire harness connector, and remove it from the transmission
housing.
(cont’d)
Replace. Replace.
08/08/21 14:46:51 61SNR030_140_0231
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DYNOMITE -2009-