TPMS Control Unit Inputs and Outputs 20P Connector

Fig 1: TPMS Control Unit 20P Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Terminal number	Wire color	Terminal sign (Terminal name)	Description	Signal
1	WHT	CAN H (F-CAN communication signal high)	F-CAN communication circuit	With ignition switch ON (II): pulses
4	BLK	GND (Ground)	Ground for the TPMS control unit	Less than 0.1 V at all times
5	GRN	LF LF SIG. (LF low frequency signal)	Detects the signal from the left-front initiator	For the first 5 seconds after turning the ignition switch to ON (II): pulses 4.5-6.5V
5	GRN	LF LF SIG. (LF low frequency signal)	Detects the signal from the left-front initiator	After 40 seconds with ignition switch ON (II): less than 0.1V
6	LT GRN	RF LF SIG. (RF low frequency signal)	Detects the signal from the right-front initiator	For the first 5 seconds after turning the ignition switch ON (II): pulses 4.5-6.5V
6	LT GRN	RF LF SIG. (RF low frequency signal)	Detects the signal from the right-front initiator	After 40 seconds with ignition switch ON (II): less than 0.1V
7	LT BLU	K-LINE (Data link connector)	Communications with the HDS	--
8	PNK	IG1 (Ignition switch 1)	Power source for activating the system	Ignition switch ON (II): battery voltage (about 12V)
8	PNK	IG1 (Ignition switch 1)	Power source for activating the system	Ignition switch in LOCK (0): less than 0.1 V
10	YEL	+ B (Battery positive)	Power source for the TPMS control unit	Battery voltage (about 12V) at all times
11	RED	CAN L (F-CAN communication signal low)	F-CAN communication circuit	With ignition switch ON (II): pulses
15	LT BLU	LF GND (LF low frequency ground)	Ground for the initiators	For the first 5 seconds after turning the ignition switch ON (II): less than 0.1V
16	GRN	LR LF SIG. (LR low frequency signal)	Detects the signal from the left-rear initiator	For the first 5 seconds after turning the ignition switch ON (II): pulses 4.5-6.5V
16	GRN	LR LF SIG. (LR low frequency signal)	Detects the signal from the left-rear initiator	After 40 seconds with ignition switch ON (II): less than 0.1V
17	GRY	RR LF SIG. (RR low frequency signal)	Detects the signal from the right-rear initiator	For the first 5 seconds after turning the ignition switch ON (II): pulses 4.5-6.5V
17	GRY	RR LF SIG. (RR low frequency signal)	Detects the signal from the right-rear initiator	After 40 seconds with ignition switch ON (II): less than 0.1V
20	BRN	LF PWR. (LF low frequency power)	Power source for the initiators	For the first 5 seconds after turning the ignition switch ON (II): pulses 0.3-6.5 V
20	BRN	LF PWR. (LF low frequency power)	Power source for the initiators	After 40 seconds with ignition switch ON (II): About 0.3 V