2006 ACURA CSX engine

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Electronic Control System (cont’d)
PCM A/T Control System Inputs and Outputs (cont’d)
PCM CONNECTOR B (44P)Wire Color Terminal Name Description SignalTerminalNumber
14-50Automatic Transmission
System Description (cont’d)
A (44P)
B (44P) C (44P)
PCM Connector Terminal Locations




B9 BLU/WHT OP3SW (3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH) Detects 3rd clutch
transmission fluid pressure
switch signalWith ignition switch ON (II):
Without 3rd clutch pressure: about 5.0 V
With 3rd clutch pressure: about 0 V
B10 BLU/BLK SHA (SHIFT SOLENOID VALVE A) Drives shift solenoid
valve AWith engine running in R, D and S (in 1st, 4th, and
5th gears): about battery voltage
With engine running in P, N, D and S (in 2nd and 3rd
gears): about 0 V
B11 GRN/WHT SHB (SHIFT SOLENOID VALVE B) Drives shift solenoid
valve BWith engine running in P, R, N, D and S (in 1st and
2nd gears): about battery voltage
With engine running in D and S (in 3rd, 4th, and 5th
gears): about 0 V
B12 RED/BLK ATPN (TRANSMISSION RANGE SWITCH NEUTRAL) Detects transmission range
switch N position signalIn N: about 0 V
In any position other than N: more than 5.0 V
B13 BLU/BLK ATPP (TRANSMISSION RANGE SWITCH PARK) Detects transmission range
switch P position signalIn P: about 0 V
In any position other than P: more than 5.0 V
B14 WHT ATPR (TRANSMISSION RANGE SWITCH R) Detects transmission range
switch R position signalIn R: about 0 V
In any position other than R: more than 5.0 V
B15 RED ATPS (TRANSMISSION RANGE SWITCH S) Detects transmission range
switch S position signalIn S: about 0 V
In any position other than S: about battery voltage
B16 BLU/YEL SUPP (PADDLE SHIFTER (UPSHIFT SWITCH)) Detects paddle shifter
(upshift switch) signalIn S:
With paddle shifter (upshift switch) pressed:
about 0 V
With paddle shifter (upshift switch) released:
about battery voltage
B17 WHT/RED NM (INPUT SHAFT (MAINSHAFT) SPEED
SENSOR) Detects input shaft
(mainshaft) speed sensor
signalWith ignition switch ON (II): about 0 V
With engine idling in N: about 2.5 V
B18 YEL/BLU VCC2 (SENSOR VOLTAGE) Provides sensor reference voltageWith ignition switch ON (II): about 5.0 V
B20 GRN SHC (SHIFT SOLENOID VALVE C) Drives shift solenoid
valve CWith engine running in N, D and S (in 1st, 3rd, and
5th gears): about battery voltage
With engine running in P, R, D and S (in 2nd and 4th
gears): about 0 V
NOTE: Standard battery voltage is about 12 V.
Terminal side of female terminals
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DYNOMITE -2009-

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PCM CONNECTOR B (44P)
Wire Color Terminal Name Description Signal
TerminalNumber
14-51
B21 YEL/GRN ATPD (TRANSMISSION RANGE SWITCH D) Detects transmission range
switch D position signalIn D: about 0 V
In any position other than D: about battery voltage
B22 RED/WHT ATPRVS (TRANSMISSION RANGE SWITCH RVS) Detects transmission range
switch R position signalIn R: about 0 V
In any position other than R: about battery voltage
B24 YEL SHE (SHIFT SOLENOID VALVE E) Drives shift solenoid valve E With engine running in P and R: about battery
voltage
With engine running in N, D and S (in 1st gear):
about 0 V
B25 BLU/YEL LSC (A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C) Drives A/T clutch pressure
control solenoid valve C
With ignition switch ON (II): current controlled
B26 GRN/RED SHD (SHIFT SOLENOID VALVE D) Drives shift solenoid
valve DWith engine running in D and S (in 2nd and 5th
gears): about battery voltage
With engine running in P, R, N, D and S (in 1st, 3rd,
and 4th gears): about 0 V
B27 RED/YEL ATFT (ATF TEMPERATURE SENSOR) Detects ATF temperature
sensor signalWith igniting switch ON (II): about 0.2 4.8 V
depending on ATF temperature
(about 1.8 V at operating temperature)
B28 BLU/YEL ATPFWD (TRANSMISSION RANGE SWITCH FWD) Detects transmission range
switch D and S positions
signalIn D and S: about 0 V
In any position other than D and S: about battery
voltage
B33 GRN/BLK SG2 (SENSOR GROUND) Sensor ground Less than 1.0 V at all times
NOTE: Standard battery voltage is about 12 V.
(cont’d)
08/08/21 14:38:26 61SNR030_140_0053
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Hydraulic Controls
Valve Bodies
14-53
SHIFT SOLENOID
VALVE DSHIFT SOLENOID
VALVE E
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
SHIFT SOLENOID
VALVE B A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE B
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
SERVO BODY
REGULATOR
VALVE BODY
MAIN VALVE BODY
The valve body includes the main valve body, the regulator valve body, and the servo body. The ATF pump is driven
by splines on the end of the torque converter which is attached to the engine. Fluid flows through the regulator valve
to maintain specified pressure through the main valve body to the manual valve, directing pressure to the shift valves
and to each of the clutches via the shift solenoid valves. Shift solenoid valves A, B, C, D, and E are bolted on the servo
body. A/T clutch pressure control solenoid valves A, B, and C are mounted on the outside of the transmission housing.
(cont’d)
08/08/21 14:38:27 61SNR030_140_0055
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Hydraulic Flow
Distribution of Hydraulic Pressure
Hydraulic Pressure at the Port for use in the hydraulic circuitPortNo. Hydraulic Pressure Port
No.Hydraulic Pressure
14-57
As the engine turns, the ATF pump starts to operate. Automatic transmission fluid (ATF) is drawn through the ATF
strainer (filter) and discharged into the hydraulic circuit. Then, ATF flowing from the ATF pump becomes line pressure
that is regulated by the regulator valve. Torque converter pressure from the regulator valve enters the torque
converter through the lock-up shift valve, and it is discharged from the torque converter. The torque converter check
valve prevents torque converter pressure from rising.
The PCM switches shift solenoid valves ON and OFF. The shift solenoid valve intercepts line pressure from the ATF
pump via the manual valve when the shift solenoid valve is OFF. When the shift solenoid valve is turned ON by the
PCM, line pressure changes to shift solenoid valve pressure at the shift solenoid valve, then the shift solenoid valve
pressure flows to the shift valve. Applying shift solenoid pressure to the shift valves moves the position of the shift
valve, and switches the port of the hydraulic circuit. The PCM also controls A/T clutch pressure control solenoid valves
A, B, and C. The A/T clutch pressure control solenoid valves regulate hydraulic pressure, and applies pressure to the
clutches to engage smoothly. The clutches receive optimum clutch pressure which is regulated by the A/T clutch
pressure control solenoid valves for comfortable driving and shifting under all conditions.
1 Line SB Shift solenoid valve B
3 Line SC Shift solenoid valve C
3’ Line SD Shift solenoid valve D 4 Line SE Shift solenoid valve E
4’ Line 10 1st clutch
4’’ Line 20 2nd clutch 7 Line 30 3rd clutch
1A 40 4th clutch 1B 50 5th clutch
3A 55 A/T clutch pressure control solenoid valve A 3B 55’ A/T clutch pressure control solenoid valve A
3C 56 A/T clutch pressure control solenoid valve B
5A 57 A/T clutch pressure control solenoid valve C 5B 90 Torque converter
5C 91 Torque converter
5D 92 Torque converter 5E 93 ATF cooler5F 94 Torque converter
5G A/T clutch pressure control solenoid valve B 95 Lubrication 5H A/T clutch pressure control solenoid valve C 96 Torque converter 5J A/T clutch pressure control solenoid valve C 97 Torque converter
5K A/T clutch pressure control solenoid valve C 99 Suction 5L A/T clutch pressure control solenoid valve C X Drain
5N A/T clutch pressure control solenoid valve C HX High position drain
SA Shift solenoid valve A AX Air drain
(cont’d)
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve B
Line or A/T clutch pressure control solenoid valve A or
B
08/08/21 14:38:29 61SNR030_140_0059
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Lock-up System
Torque Converter Clutch Lock-up ON (Engaging Torque Converter Clutch)
Torque Converter Clutch Lock-up OFF (Disengaging Torque Converter Clutch)
14-72Automatic Transmission
System Description (cont’d)
Power flow
The power flows by way of: Engine
Drive plate
Torque converter cover
Torque converter clutch piston
Damper spring
Turbine
Mainshaft To ATF cooler
INLET OUTLET DAMPER SPRING
TURBINE
MAINSHAFT
TORQUE CONVERTER
CLUTCH PISTON
TORQUE
CONVERTER
COVER
To ATF coolerINLET
TURBINE
PUMP
TORQUE
CONVERTER
COVER
MAINSHAFT
Power flow
The power flows by way of: Engine
Drive plate
Torque converter cover
Pump
Turbine
Mainshaft
The lock-up mechanism of the torque converter clutch operates in D and S (2nd, 3rd, 4th, and 5th gears). The
pressurized fluid is drained from the back of the torque converter through a fluid passage, causing the torque
converter clutch piston to be held against the torque converter cover. As this takes place, the mainshaft rotates at the
same speed as the engine. Together with the hydraulic control, the PCM optimizes the timing and volume of the lock-
up mechanism. When shift solenoid valve E is turned on by the PCM, shift solenoid valve E pressure switches the lock-
up shift valve on. A/T clutch pressure control solenoid valve A and the lock-up control valve control the degree of lock-
up.
Fluid in the chamber between the torque converter cover and the torque converter clutch piston is drained off, and
fluid entering from the chamber between the pump and the stator exerts pressure through the torque converter clutch
piston against the torque converter cover. The torque converter clutch piston engages with the torque converter cover;
the torque converter clutch lock-up is ON, and the mainshaft rotates at the same speed as the engine.
Fluid entered from the chamber between the torque converter cover and the torque converter clutch piston passes
through the torque converter and goes out through the chambers between the turbine and the stator, and between the
pump and the stator. As a result, the torque converter clutch piston moves away from the torque converter cover, and
the torque converter lock-up clutch is released; the torque converter clutch lock-up is OFF.
08/08/21 14:39:41 61SNR030_140_0074
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Shift Lock System
14-76Automatic Transmission
System Description (cont’d)
P POSITION
LOCK PIN
SHIFT LOCK
STOP
SHIFT LOCK
SOLENOID PLUNGER
SHIFT LOCK SOLENOID: OFF SHIFT LOCK SOLENOID: ON
SELECT LEVER
GATE
The shift lock system prevents the shift lever from mis-shifting. The shift lock solenoid is usually OFF. After starting
the engine in P, the shift lever ca
nnot move to any other position from P because the shift lock stop stops the lock pin
unless the brake pedal is pressed. When the brake pedal is pressed and the accelerator pedal is not pressed, the shift
lock solenoid is ON; the shift lock solenoid plunger in the shift lock solenoid pulls the shift lock stop to release the lock
pin. Pressing the shift lever button, allows the shift lever to move to any other position. When the brake pedal and the
accelerator pedal are pressed at the same time, the shift lock system is not unlocked.
08/08/21 14:39:44 61SNR030_140_0078
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DTC P0107:
DTC P0108:
YES
NO
YES
NO YES
NO
YES
NO
14-80
Automatic Transmission
DTC Troubleshooting
Manifold Absolute Pressure
(MAP) Sensor Circuit Low Voltage Input
Manifold Absolute Pressure
(MAP) Sensor Circuit High Voltage Input
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
4. Check for Temporary DTCs or DTCs in the PGM-FI SYSTEM with the HDS.
Go to the indicated DTC’s troubleshooting in
the PGM-FI system.
 P0107 (see page 11-80)
 P0108 (see page 11-82) Go to step 5.
5. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Go to step 6.
Intermittent failure, the system is OK at this
time. If any other Temporary DTCs or DTCs were
indicated, go to the indicated DTC’s
troubleshooting.
6. Update the PCM if it does not have the latest software (see page 11-227), or substitute a known-
good PCM (see page 11-7).
7. Start the engine, and wait for at least 2 minutes. 8. Check for Temporary DTCs or DTCs in the A/T
SYSTEM with the HDS.
Check for poor connections or loose
terminals at the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-7), then
go to step 7. If the PCM was substituted, go to step
1.
Go to step 9.
9. Monitor the OBD STATUS for P0107 or P0108 in the DTCs MENU with the HDS.
If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 8,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals at the PCM. If the
PCM was updated, substitute a known-good PCM
(see page 11-7), then go to step 7. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 7.
I s DT C P0107 or P0108 i nd i cat ed i n t he PGM -F I SY ST EM?
I s DT C P0107 or P0108 i nd i cat ed i n t he A/ TSY ST EM? I s DT C P0107 or P0108 i nd i cat ed i n t he A/ T
SY ST EM?
Does the HDS ind icate PASSED?
08/08/21 14:39:47 61SNR030_140_0082
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DTC P0335:
DTC P0339:
YES
NO
YES
NO YES
NO
YES
NO
14-81
Crankshaft Position (CKP) Sensor
No Signal
Crankshaft Position (CKP) Sensor
Intermittent Interruption
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for Temporary DTCs or DTCs in the PGM-FI SYSTEM with the HDS.
Go to the indicated DTC’s troubleshooting in
the PGM-FI system.
 P0335 (see page 11-128)
 P0339 (see page 11-131) Go to step 5.
5. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Go to step 6.
Intermittent failure, the system is OK at this
time. If any other Temporary DTCs or DTCs were
indicated, go to the indicated DTC’s
troubleshooting.
6. Update the PCM if it does not have the latest software (see page 11-227), or substitute a known-
good PCM (see page 11-7).
7. Start the engine, and wait for at least 2 minutes. 8. Check for Temporary DTCs or DTCs in the A/T
SYSTEM with the HDS.
Check for poor connections or loose
terminals at the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-7), then
go to step 7. If the PCM was substituted, go to step
1.
Go to step 9.
9. Monitor the OBD STATUS for P0335 or P0339 in the DTCs MENU with the HDS.
If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 8,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals at the PCM. If the
PCM was updated, substitute a known-good PCM
(see page 11-7), then go to step 7. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 7.
Is DT C P0335 or P0339 ind icated in the PGM-F I SY ST EM?
Is DT C P0335 or P0339 ind icated in the A/ TSY ST EM? Is DT C P0335 or P0339 ind icated in the A/ T
SY ST EM?
Does the HDS ind icate PASSED?
08/08/21 14:39:47 61SNR030_140_0083
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