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

Fig 1: Identifying PCM A/T Control Connector B Δ (49P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: Standard battery voltage is about 12 V

PCM CONNECTOR B Δ (49P) 

TERMINALS DESCRIPTION

Terminal Number	Wire Color	Terminal Name	Description	Signal
B1	BLK	PG2 (POWER GROUND)	Ground circuit for PCM circuit	Less than 0 2 V at all times
B2	BLK/YEL	VBSOL1 (POWER SOURCE FOR SOLENOID VALVES)	Power source for solenoid valve	With ignition switch ON (II)/vehicle in ON mode battery voltage
B3	YEL/BLK	IGP (POWER SOURCE)	Power source for PCM circuit	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
B34	GRN/WHT	SG1 (SENSOR GROUND)	Sensor ground	Less than 0 2 V at all times
B36	YEL/RED	VCC1 (SENSOR VOLTAGE)	Provides sensor 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 signals	With ignition switch ON (II)/vehicle in ON mode about 0 V or about 5 0 V With engine at idling in N about 2 5 V
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 0V with driving pulses
B40	BLK	PG1 (POWER GROUND)	Ground circuit for PCM circuit	Less than 0 2 V at all times
B41	BRN/YEL	LG2 (LOGIC GROUND)	Ground circuit for PCM circuit	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