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PCM A/T Control System Inputs and Outputs at PCM Connector B Δ (49P)

Fig 1: PCM A/T Control System Inputs And Outputs At PCM Connector B Terminals
G06768305Courtesy of AMERICAN HONDA MOTOR CO., INC.
CONNECTOR TERMINALS REFERENCE CHART

Terminal number Wire color Terminal name Description Signal
1 BRN *(1)
BLK *(2)
PG2 (POWER GROUND) Ground circuit for PCM circuit Less than 0.2 V at all times
8 BLU/RED *(1)
BLU *(2)
OP2SW (TRANSMISSION FLUID PRESSURE SWITCH A (2ND CLUTCH)) Detects transmission fluid pressure switch A (2nd clutch) input signal With ignition switch ON (II):
  • Without 2nd clutch pressure: about 5.0 V
  • With 2nd clutch pressure: about 0 V
9 BLU/WHT *(1)
PNK *(2)
OP3SW (TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH)) Detects transmission fluid pressure switch B (3rd clutch) input signal With ignition switch ON (II):
  • Without 3rd clutch pressure: about 5.0 V
  • With 3rd clutch pressure: about 0 V
10 BLK PG1 (POWER GROUND) Ground circuit for PCM circuit Less than 0.2 V at all times
11 BLU/BLK *(1)
LT GRN *(2)
SHA (SHIFT SOLENOID VALVE A) Drives shift solenoid valve A With engine running in D (in 2nd and 4th gears), S (in 2nd and 4th gears), D3 (in 2nd gear), and 2: battery voltage With engine running in P, R, N, 1, D (in 1st, 3rd, and 5th gears), S (in 1st, 3rd, and 5th gears), D3 (in 1st and 3rd gears): about 0 V
12 GRN/RED *(1)
RED *(2)
SHD (SHIFT SOLENOID VALVE D) Drives shift solenoid valve D With engine running in P, R: battery voltage With engine running in N: about 0 V
13 RED/BLK *(1)
WHT *(2)
ATPN (TRANSMISSION RANGE SWITCH N) Detects transmission range switch N position input signal In N: about 0 V In any position other than N: battery voltage
14 BLU/BLK *(1)
GRN *(2)
ATPP (TRANSMISSION RANGE SWITCH P) Detects transmission range switch P position input signal In P: about 0 V In any position other than P: battery voltage
15 WHT *(1)
PUR *(2)
ATPR (TRANSMISSION RANGE SWITCH R) Detects transmission range switch R position input signal In R: about 0 V In any position other than R: battery voltage
16 (Seven-position) RED *(1)
LT BLU *(2)
ATPD3 (TRANSMISSION RANGE SWITCH D3) Detects transmission range switch D3 position input signal In D3: about 0 V In any position other than D3: battery voltage
16 (Five-position) RED *(1)
LT BLU *(2)
ATPS (TRANSMISSION RANGE SWITCH S) Detects transmission range switch S position input signal In S: about 0 V
In any position other than S: battery voltage
17 (Seven-position) BLU ATP2-1 (TRANSMISSION RANGE SWITCH 2-1) Detects transmission range switch 2 and 1 position input signal In 2 and 1: about 0 V
In any position other than 2 and 1: battery voltage
18 WHT/RED *(1)
RED *(2)
NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR) Detects input shaft (mainshaft) speed sensor signal With ignition switch ON (II): about 0 V or about 5.0 V
With engine running in N: pulses
19 YEL/BLU *(1)
TAN *(2)
VCC2 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
21 GRN *(1)
BLU *(2)
SHC (SHIFT SOLENOID VALVE C) Drives shift solenoid valve C With engine running in R, D (in 3rd and 4th gears), S (in 3rd and 4th gears), D3 (in 3rd gear): battery voltage
With engine running in P, N, 2, 1, D (in 1st, 2nd, and 5th gears), S (in 1st, 2nd, and 5th gears), D3 (in 1st and 2nd gears): about 0 V
22 PNK ATPD (TRANSMISSION RANGE SWITCH D) Detects transmission range switch D position input signal In D: about 0 V
In any position other than D: battery voltage
23 YEL ATPRVS (TRANSMISSION RANGE SWITCH RVS) Detects transmission range switch R position input signal In R: about 0 V
In any position other than R: battery voltage
26 BLU/YEL *(1)
RED *(2)
LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C) Drives A/T clutch pressure control solenoid valve C With ignition switch ON (II): duty controlled
27 GRN/WHT *(1)
PUR *(2)
SHB (SHIFT SOLENOID VALVE B) Drives shift solenoid valve B With engine running in R, 1, D (in 1st, 4th, and 5th gears), S (in 1st, 4th, and 5th gears), D3 (in 1st gear): battery voltage
With engine running in P, N, 2, D (in 2nd and 3rd gears), D3 (in 2nd and 3rd gears), S (in 2nd and 3rd gears): about 0 V
28 RED/YEL *(1)
WHT *(2)
TATF (ATF TEMPERATURE SENSOR) Detects ATF temperature sensor signal With ignition switch ON (II): about 0.2-4.0 V (depending on ATF temperature)
29 BLU/YEL *(1)
TAN *(2)
ATPFWD (TRANSMISSION RANGE SWITCH FWD) Detects transmission range switch D, D3, 2, and S position input signal In D, D3, 2, and S: about 0 V
In P, R, N, and 1: battery voltage
34 GRN/YEL *(1)
GRY *(2)
SG2 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
38 BLK/WHT *(1)
LT BLU *(2)
NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR) Detects output shaft (countershaft) speed sensor signal With ignition switch ON (II): about 0 V or about 5.0 V
Driving: pulses
40 RED/BLK *(1)
LT BLU *(2)
LSA (ATT CLUTCH PRESSURE CONTROL SOLENOID VALVE A) Drives A/T clutch pressure control solenoid valve A With ignition switch ON (II): duty controlled
48 BRN/WHT *(1)
YEL *(2)
LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B) Drives A/T clutch pressure control solenoid valve B With ignition switch ON (II): duty controlled
*(1): Refers to 2009-10 Models
*(2): Refers to 2011-12 Model