Acura CSX. Manual — part 242
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PCM A/T Control System Inputs and Outputs
PCM CONNECTOR A
(44P)
Wire Color
Terminal Name
Description
Signal
PCM CONNECTOR B
(44P)
Wire Color
Terminal Name
Description
Signal
Terminal
Number
Terminal
Number
14-49
A
(44P)
B
(44P)
C
(44P)
PCM Connector Terminal Locations
A27
PNK
SLS (SHIFT LOCK
SOLENOID)
Drives shift lock solenoid
With ignition switch ON (II), in P, brake pedal
pressed, and accelerator released: about battery
voltage
A31
BRN
SCS (SERVICE CHECK
SIGNAL)
Detects service check signal
With service check signal shorted using HDS: about
0 V
With service check signal opened: about 5.0 V
A36
WHT
CANH (CAN
COMMUNICATION SIGNAL
HIGH)
Sends and receives
communication signal
With ignition switch ON (II): about 2.5 V (pulses)
A37
RED
CANL (CAN
COMMUNICATION SIGNAL
LOW)
Sends and receives
communication signal
With ignition switch ON (II): about 2.5 V (pulses)
A40
LT GRN
BKSW (BRAKE PEDAL
POSITION SWITCH)
Detects brake pedal
position switch signal
With brake pedal pressed: about battery voltage
With Brake pedal released: about 0 V
NOTE: Standard battery voltage is about 12 V.
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B1
BLK/RED
BLK
PG2 (POWER GROUND)
Ground circuit for PCM
circuit
Less than 1.0 V at all times
B8
BLU/RED
OP2SW (2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH)
Detects 2nd clutch
transmission fluid pressure
switch signal
With ignition switch ON (II):
Without 2nd clutch pressure: about 5.0 V
With 2nd clutch pressure: about 0 V
NOTE: Standard battery voltage is about 12 V.
*1: ’06 model
*2: ’07-09 models
*1
*2
Terminal side of female terminals
08/08/21 14:38:26 61SNR030_140_0051
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PCM CONNECTOR B
(44P)
Wire Color
Terminal Name
Description
Signal
Terminal
Number
14-50
Automatic Transmission
A
(44P)
B
(44P)
C
(44P)
PCM Connector Terminal Locations
•
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B9
BLU/WHT
OP3SW (3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH)
Detects 3rd clutch
transmission fluid pressure
switch signal
With 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 A
With 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 B
With 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 signal
In 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 signal
In 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 signal
In 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 signal
In 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) signal
In 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
signal
With 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
voltage
With ignition switch ON (II): about 5.0 V
B20
GRN
SHC (SHIFT SOLENOID
VALVE C)
Drives shift solenoid
valve C
With 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
08/08/21 14:38:26 61SNR030_140_0052
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PCM CONNECTOR B
(44P)
Wire Color
Terminal Name
Description
Signal
Terminal
Number
14-51
B21
YEL/GRN
ATPD (TRANSMISSION
RANGE SWITCH D)
Detects transmission range
switch D position signal
In 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 signal
In 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 D
With 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 signal
With 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
signal
In 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.
08/08/21 14:38:26 61SNR030_140_0053
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*08
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PCM CONNECTOR B
(44P)
Wire Color
Terminal Name
Description
Signal
PCM CONNECTOR C
(44P)
Wire Color
Terminal Name
Description
Signal
Terminal
Number
Terminal
Number
14-52
Automatic Transmission
A
(44P)
B
(44P)
C
(44P)
PCM Connector Terminal Locations
•
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B35
BRN
LSB (A/T CLUTCH
PRESSURE CONTROL
SOLENOID VALVE B)
Drives A/T clutch pressure
control solenoid valve B
With ignition switch ON (II): current controlled
B36
BLK
PG1 (POWER GROUND)
Ground circuit for PCM
circuit
Less than 1.0 V at all times
B40
BRN
SDNP (PADDLE SHIFTER
(DOWNSHIFT SWITCH))
Detects paddle shifter
(downshift switch) signal
In S:
With paddle shifter
(downshift switch) pressed:
about 0 V
With paddle shifter
(downshift switch)
released: about 5.0 V
B44
RED/BLK
LSA (A/T CLUTCH
PRESSURE CONTROL
SOLENOID VALVE A)
Drives A/T clutch pressure
control solenoid valve A
With ignition switch ON (II): current controlled
NOTE: Standard battery voltage is about 12 V.
C13
YEL/RED
VCC1 (SENSOR VOLTAGE)
Provides sensor reference
voltage
With ignition switch ON (II): about 5.0 V
C14
GRN/WHT
SG1 (SENSOR GROUND)
Sensor ground
Less than 1.0 V at all times
C36
BLK/GRN
IG1 (IGNITION SIGNAL)
Detects ignition signal
With ignition switch ON (II): about battery voltage
C40
BRN/YEL
LG1 (LOGIC GROUND)
Ground circuit for PCM
circuit
Less than 1.0 V at all times
C43
BLK/WHT
NC (OUTPUT SHAFT
(COUNTERSHAFT) SPEED
SENSOR)
Detects output shaft
(countershaft) speed sensor
signal
With ignition switch ON (II): pulses
With vehicle moving: about 5.0 V (pulses)
C44
BRN/YEL
LG2 (LOGIC GROUND)
Ground circuit for PCM
circuit
Less than 1.0 V at all times
NOTE: Standard battery voltage is about 12 V.
Terminal side of female terminals
08/08/21 14:38:27 61SNR030_140_0054
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