Keyless Access/TPMS Control Unit Connector for Inputs and Outputs (2022 2023 2024 2025)

Connector Index
KEYLESS ACCESS/TPMS CONTROL UNIT CONNECTOR A (32P)
KEYLESS ACCESS/TPMS CONTROL UNIT CONNECTOR B (36P)
KEYLESS ACCESS/TPMS CONTROL UNIT CONNECTOR C (20P)

Keyless Access/TPMS Control Unit Connector A (32P) (female terminals)

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

Terminal number	Terminal name	Description	Signal
1	+B SMART	Power source for keyless access/TPMS control unit	About battery voltage at all times
2	KEY SW	Outputs KEY SW signal	With vehicle in OFF (LOCK) mode: about battery voltageWith vehicle in ACCESSORY or ON mode: less than 0.2 V
3	Not used	---	---
4	Not used	---	---
5	Not used	---	---
6	Not used	---	---
7	Not used	---	---
8	Not used	---	---
9	Not used	---	---
10	Not used	---	---
11	RR INT LF+	Outputs RR INT LF+ signal	---
12	FR WHEEL LF+	Outputs FR WHEEL LF+ signal	---
13	FL WHEEL LF+	Outputs FL WHEEL LF+ signal	---
14	FR INT LF+	Outputs FR INT LF+ signal	---
15	RR WHEEL LF+	Outputs RR WHEEL LF+ signal	---
16	RL WHEEL LF+	Outputs RL WHEEL LF+ signal	---
17	SGND	Ground for keyless access/TPMS control unit	Less than 0.2 V at all times
18	Not used	---	---
19	VOUT FRDR	Outputs VOUT FRDR signal	---
20	Not used	---	---
21	VOUT FRAS	Outputs VOUT FRAS signal	---
22	Not used	---	---
23	Not used	---	---

Terminal number	Terminal name	Description	Signal
24	Not used	---	---
25	Not used	---	---
26	Not used	---	---
27	RR INT LF-	Outputs RR INT LF- signal	---
28	FR WHEEL LF-	Outputs FR WHEEL LF- signal	---
29	FL WHEEL LF-	Outputs FL WHEEL LF- signal	---
30	FR INT LF-	Outputs FR INT LF- signal	---
31	RR WHEEL LF-	Outputs RR WHEEL LF- signal	---
32	RL WHEEL LF-	Outputs RL WHEEL LF- signal	---

Keyless Access/TPMS Control Unit Connector B (36P) (female terminals)

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

Terminal number	Terminal name	Description	Signal
1	PARKING SW	Detects PARKING SW signal	With parking brake switch ON: less than 0.2 VWith parking brake switch OFF: about battery voltage
2	ESL SW D	Detects ESL SW D signal	---
3	ESL SW B	Detects ESL SW B signal	---
4	ESL SW C	Detects ESL SW C signal	---
5	MTR CUT1	Detects MTR CUT1 signal	---
6	MTR CUT2	Detects MTR CUT2 signal	---
7	Not used	---	---
8	Not used	---	---
9	Not used	---	---
10	SS1+	Detects SS1+ signal	With engine start/stop switch pressed: about battery voltage
11	SS2-	Detects SS2- signal	---
12	Not used	---	---
13	Not used	---	---
14	IG1 REM	Outputs IG1 REM signal	With engine remote start operation: about battery voltage
15	ACC RLY CL	Outputs ACC RLY CL signal	With vehicle in ACCESSORY or ON mode: about battery voltage
16	IG2 RLY CL	Outputs IG2 RLY CL signal	With vehicle in ON mode: about battery voltage
17	IG1 RLY CL	Outputs IG1 RLY CL signal	With vehicle in ON or START mode: about battery voltage
18	+B BACKUP	Power source for keyless access/TPMS control unit	About battery voltage at all times

Terminal number	Terminal name	Description	Signal
19	STOP SW	Detects STOP SW signal	With brake pedal pressed: about battery voltageWith brake pedal released: less than 0.2 V
20	DCK	Communication line	---
21	DIN/DOUT	Communication line	---
22	SW ILL2	Outputs SW ILL2 signal	About 0V-battery voltage (depending on engine start/stop switch illumination brightness)
23	SW ILL1	Outputs SW ILL1 signal	About 0V-battery voltage (depending on engine start/stop switch illumination brightness)
24	VCONT	Outputs VCONT signal	---
25	SSB GND	Ground for engine start/stop switch	Less than 0.2 V at all times
26	Not used	---	---
27	IG2-MAIN	Detects IG2 MAIN signal	With vehicle in ON mode: about battery voltage
28	Not used	---	---
29	IG1B FBK	Detects IG1B FBK signal	With vehicle in ON or START mode: about battery voltage
30	IG1A FBK	Detects IG1A FBK signal	With vehicle in ON or START mode: about battery voltage
31	MTR CONT	Outputs MTR CONT signal	---
32	STS	Outputs STS signal	With engine starting request: about battery voltage
33	ESL PWR	Outputs ESL PWR signal	Without electric steering lock or 9-speed A/T: with vehicle in ON mode or KEY SW signal input: about battery voltageWith electric steering lock: with electric steering lock operation: about battery voltage
34	IG1 VSA	IG1 power source	With vehicle in ON or START mode: about battery voltage
35	SMART RLY GND	Ground for IG1A/IG1B/IG2/ACCESSORY relays	Less than 0.2 V at all times
36	SGND	Ground for keyless access/TPMS control unit	Less than 0.2 V at all times

Keyless Access/TPMS Control Unit Connector C (20P) (female terminals)

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

Terminal number	Terminal name	Description	Signal
1	B-CAN_H	Communication line	---
2	F-CAN B_H	Communication line	---
3	IGN TRX	Communication line	---
4	K-LINE	Communication line	---
5	S-NET	Communication line	---
6	L-LINE	Communication line	---
7	Not used	---	---

Terminal number	Terminal name	Description	Signal
8	HFA OUPUT	Detects HFA OUPUT signal	---
9	Not used	---	---
10	ATP-P	Detects ATP-P signal	With the vehicle in the ON mode and P position/mode: less than 0.2 VWith out of P position/mode: about battery voltage
11	B-CAN_L	Communication line	---
12	F-CAN B_L	Communication line	---
13	DL FRAS	Detects DL FRAS signal	---
14	DL FRDR	Detects DL FRDR signal	---
15	TS FRDR	Detects TS FRDR signal	---
16	PTG O/H SW	Detects PTG O/H SW signal	With tailgate outer handle switch OFF: about battery voltageWith tailgate outer handle switch ON: less than 0.2 V
17	TS FRAS	Detects TS FRAS signal	---
18	DL T/G	Detects DL T/G signal	With tailgate lock switch OFF: about battery voltageWith tailgate lock switch ON: less than 0.2 V
19	Not used	---	---
20	Not used	---	---