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

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Fig 1: Identifying PCM Connector B (49P) Connector Terminal Location

Courtesy of AMERICAN HONDA MOTOR CO., INC.

CONNECTOR TERMINAL REFERENCE

Terminal Number	Wire Color	Terminal Name	Description	Signal
1	BLK	PG2 (POWER GROUND)	Ground circuit for PCM circuit	Less than 0.2 V at all times
2	TAN	VBSOL (POWER SOURCE FOR SOLENOID VALVES)	Power source for solenoid valves	With ignition switch ON (II): battery voltage
3	YEL	IGP (POWER SOURCE FOR PCM)	Power source for PCM circuit	With ignition switch ON (II): battery voltage
10	PUR	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
21	PNK	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
34	BLU	SG1 (SENSOR GROUND)	Sensor ground	Less than 0.2 V at all times
36	PNK	VCC1 (SENSOR VOLTAGE)	Provides sensor reference voltage	With ignition switch ON (II): about 5.0 V
37	RED	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 idling in N: about 2.5 V
38	TAN	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 With driving: pulses
40	BLK	PG1 (POWER GROUND)	Ground circuit for PCM circuit	Less than 0.2 V at all times
41	BRN	LG2 (LOGIC GROUND)	Ground circuit for PCM	Less than 0.2 V at all times
42	GRY	IG1 (IGNITION SIGNAL)	Detects ignition signal	With ignition switch ON (II): battery voltage