A/T Control System Connector for Inputs and Outputs (2016-18)

A/T Control System Connector for Inputs and Outputs

PCM A/T Control System Inputs and Outputs at PCM Connector A □ (51P)

Courtesy of HONDA, U.S.A., INC.

PCM Connector A □ (51P)

Terminal Number	Wire Color	Terminal Name	Description	Signal
1	YEL	IG1 MISS SOL (POWER SOURCE FOR SOLENOID VALVES)	Power source for solenoid valves	With vehicle in ON mode: battery voltage
2	PNK	SHIFT LOCK SOL (SHIFT LOCK SOLENOID)	Drives shift lock solenoid	With vehicle in ON mode, in P, brake pedal pressed, and accelerator pedal released: about 0 V
7	GRN	FI MAIN RLY CL- (PGM-FI MAIN RELAY 1)	Drives PGM-FI main relay 1	With vehicle in ON mode: about 0 VWith vehicle in OFF (LOCK) mode: battery voltage
9	WHT	F CAN-H (F-CAN COMMUNICATION 1 SIGNAL HIGH)	Sends and receives communication signal	With vehicle in ON mode: pulses
10	RED	F CAN-L (F-CAN COMMUNICATION 1 SIGNAL LOW)	Sends and receives communication signal	With vehicle in ON mode: pulses
16	GRN	ATPR (TRANSMISSION RANGE SWITCH R POSITION)	Detects transmission range switch R position signal	With vehicle in ON mode: In R: about 0 V In any position other than R: more than 5.0 V
18	YEL	IG1 FUEL PUMP (IGNITION SIGNAL)	Detects ignition signal	With vehicle in ON mode: battery voltage
25	LT GRN	STOP SW (BRAKE PEDAL POSITION SWITCH)	Detects brake pedal position switch signal	With brake pedal released: about 0 VWith brake pedal pressed: battery voltage
33	WHT	PADDLE SW UP (PADDLE SHIFTER + (UPSHIFT SWITCH))	Detects paddle shifter + (upshift switch) signal	With vehicle in ON mode: Paddle shifter + (upshift switch) pressed: about 0 V Paddle shifter + (upshift switch) released: battery voltage
34	ORN	PADDLE SW DOWN (PADDLE SHIFTER - (DOWNSHIFT SWITCH))	Detects paddle shifter - (downshift switch) signal	With vehicle in ON mode: Paddle shifter - (downshift switch) pressed: about 0 V Paddle shifter - (downshift switch) released: battery voltage
37	PUR	ATPP (TRANSMISSION RANGE SWITCH P POSITION)	Detects transmission range switch P position signal	With vehicle in ON mode: In P: about 0 V In any position other than P: more than 5.0 V
39	ORN	SCS (SERVICE CHECK SIGNAL)	Detects service check signal	With service check signal shorted: about 0 VWith service check signal opened: about 5.0 V

PCM A/T Control System Inputs and Outputs at PCM Connector B Δ (51P)

Courtesy of HONDA, U.S.A., INC.

PCM Connector B Δ (51P)

Terminal Number	Wire Color	Terminal Name	Description	Signal
1	TAN	IG1(VBSOL) (POWER SOURCE FOR SOLENOID VALVES)	Power source for solenoid valves	With vehicle in ON mode: battery voltage
2	BLU	SHA (SHIFT SOLENOID VALVE A)	Drives shift solenoid valve A	With engine running: In any gear other than 1st and 2nd: about 0 V In 1st and 2nd gears: battery voltage
3	GRN	SHC (SHIFT SOLENOID VALVE C)	Drives shift solenoid valve C	With engine running: In N and D during no lock-up condition: about 0 V In P, R, and D during lock-up condition: battery voltage
4	PNK	SHB (SHIFT SOLENOID VALVE B)	Drives shift solenoid valve B	With engine running: In any gear other than 1st, 2nd, and 3rd (upshift condition): about 0 V In 1st, 2nd, and 3rd gears (upshift condition): battery voltage
5	YEL	PLA (LINE PRESSURE SOLENOID VALVE A)	Drives line pressure solenoid valve A	With engine running: In low line pressure mode: about 0 V In normal line pressure mode: battery voltage
6	RED	LSA (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A)	Drives A/T clutch pressure control solenoid valve A	With vehicle in ON mode: current controlled
7	PUR	LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B)	Drives A/T clutch pressure control solenoid valve B	With vehicle in ON mode: current controlled
8	PNK	LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C)	Drives A/T clutch pressure control solenoid valve C	With vehicle in ON mode: current controlled
9	TAN	LSD (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE D)	Drives A/T clutch pressure control solenoid valve D	With vehicle in ON mode: current controlled
10	YEL	IGP (POWER SOURCE)	Power source for PCM	With vehicle in ON mode: battery voltage

Terminal Number	Wire Color	Terminal Name	Description	Signal
11	BLK	GND1 (POWER GROUND)	Ground for PCM	Less than 0.2 V at all times
20	BRN	GND2 (LOGIC GROUND)	Ground for PCM	Less than 0.2 V at all times
23	LT GRN	ATPD (TRANSMISSION RANGE SWITCH D POSITION)	Detects transmission range switch D position signal	With vehicle in ON mode: In D: about 0 V In any position other than D: more than 5.0 V
24	TAN	OP2SW (TRANSMISSION FLUID PRESSURE SWITCH A (2ND CLUTCH))	Detects transmission fluid pressure switch A (2nd clutch) signal	With engine running: With 2nd clutch pressure: about 0 V Without 2nd clutch pressure: battery voltage
25	LT BLU	OP3SW (TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH))	Detects transmission fluid pressure switch B (3rd clutch) signal	With engine running: With 3rd clutch pressure: about 0 V Without 3rd clutch pressure: battery voltage
26	BLU	OP4SW (TRANSMISSION FLUID PRESSURE SWITCH C (4TH CLUTCH))	Detects transmission fluid pressure switch C (4th clutch) signal	With engine running: With 4th clutch pressure: about 0 V Without 4th clutch pressure: battery voltage
27	LT BLU	OP5SW (TRANSMISSION FLUID PRESSURE SWITCH D (5TH CLUTCH))	Detects transmission fluid pressure switch D (5th clutch) signal	With engine running: With 5th clutch pressure: about 0 V Without 5th clutch pressure: more than 5.0 V
28	GRY	OP6SW (TRANSMISSION FLUID PRESSURE SWITCH E (6TH CLUTCH))	Detects transmission fluid pressure switch E (6th clutch) signal	With engine running: With 6th clutch pressure: about 0 V Without 6th clutch pressure: more than 5.0 V
29	YEL	ATPFWD (TRANSMISSION RANGE SWITCH FWD POSITION)	Detects transmission range switch D position signal	With vehicle in ON mode: In D: about 0 V In any position other than D: more than 5.0 V
30	PUR	ATPN (TRANSMISSION RANGE SWITCH N POSITION)	Detects transmission range switch N position signal	With vehicle in ON mode: In N: about 0 V In any position other than N: battery voltage
34	RED	ATPS (TRANSMISSION RANGE SWITCH S POSITION)	Detects transmission range switch S position signal	With vehicle in ON mode: In N: about 0 V In any position other than N: more than 5.0 V
37	BRN	OPPLSW (LINE PRESSURE SWITCH)	Detects line pressure switch signal	With engine running: With low line pressure mode: about 0 V With normal line pressure mode: about 5.0 V
38	PNK	ATPRVS (TRANSMISSION RANGE SWITCH RVS POSITION)	Detects transmission range switch R position signal	With vehicle in ON mode: In R: about 0 V In any position other than R: more than 5.0 V
39	GRN	TATF (ATF TEMPERATURE SENSOR)	Detects ATF temperature sensor signal	With vehicle in ON mode: about 0.2-4.0 V (about 1.8 V at operating temperature, depending on ATF temperature)
43	GRN	VCC2 (SENSOR VOLTAGE)	Provides sensor reference voltage	With vehicle in ON mode: about 5.0 V
45	GRY	SG2 (SENSOR GROUND)	Sensor ground	Less than 0.2 V at all times
48	RED	NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR)	Detects input shaft (mainshaft) speed sensor signal	With vehicle in ON mode: about 0 V or about 5.0 VWith engine running in N: pulses

PCM A/T Control System Inputs and Outputs at PCM Connector C ◦ (51P)

Courtesy of HONDA, U.S.A., INC.

PCM Connector C ◦ (51P)

Terminal Number	Wire Color	Terminal Name	Description	Signal
21	TAN	NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR)	Detects output shaft (countershaft) speed sensor signal	With vehicle in ON mode: about 0 V or about 5.0 VWhile driving: pulses
32	PNK	VCC1 (SENSOR VOLTAGE)	Provides sensor reference voltage	With vehicle in ON mode: about 5.0 V
33	BLU	SG1 (SENSOR GROUND)	Sensor ground	Less than 0.2 V at all times