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Home >> Acura >> 2014 >> TL Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission >> System Description >> Electronic Control System >> PCM A/T Control System Inputs and Outputs at PCM connector B (Δ) (49P)
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PCM A/T Control System Inputs and Outputs at PCM connector B (Δ) (49P)

Fig 1: Identifying PCM Connector B (Δ) (49P) Connector End View
G08066316Courtesy of AMERICAN HONDA MOTOR CO., INC.
Terminal number Wire color Terminal name Description Signal
B1 BLK PG2 (POWER GROUND) Ground circuit for PCM Less than 0.2 V at all times
B2 BLK/YEL VBSOL (POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves With ignition switch ON (II)/vehicle in ON mode: battery voltage
B3 YEL/BLK IGP (POWER SOURCE) Power source for PCM With ignition switch ON (II)/vehicle in ON mode: battery voltage
B10 BRN/WHT LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B) Drives A/T clutch pressure control solenoid valve B With ignition switch ON (II)/vehicle in ON mode: current controlled
B21 GRN/RED LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C) Drives A/T clutch pressure control solenoid valve C With ignition switch ON (II)/vehicle in ON mode: current controlled
B36 YEL/RED VCC1 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II)/vehicle in ON mode: about 5.0 V
B37 RED NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR) Detects input shaft (mainshaft) speed sensor signal With ignition switch ON (II)/vehicle in ON mode: about 0 V or about 5.0 V With engine running in N: pulses
B38 BLU NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR) Detects output shaft (countershaft) speed sensor signal With ignition switch ON (II)/vehicle in ON mode: about 0 V or about 5.0 V With driving: pulses
B40 BLK PG1 (POWER GROUND) Ground circuit for PCM Less than 0.2 V at all times
B41 BRN/YEL LG2 (LOGIC GROUND) Ground circuit for PCM Less than 0.2 V at all times
B42 BLK/YEL IG1 (IGNITION SIGNAL) Detects ignition signal With ignition switch ON (II)/vehicle in ON mode: battery voltage
B43 BLK/WHT LSD (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE D) Drives A/T clutch pressure control solenoid valve D With ignition switch ON (II)/vehicle in ON mode: current controlled
B44 YEL PLA (LINE PRESSURE SOLENOID VALVE A) Drives line pressure solenoid valve A With engine running in 1st, or reverse gear: about 0 V With engine running in any gears other than 1st, or reverse: battery voltage