TPMS Control Unit Inputs and Outputs 20P Connector: Notes

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying TPMS Control Unit Inputs And Outputs 20P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

VOLTAGE SPECIFICATION

Terminal number	Wire color	Terminal sign (Terminal name)	Description	Signal
Terminal number	Wire color	Terminal sign (Terminal name)	Description	Terminal	Conditions	Voltage
1	WHT	CAN H (CAN communication signal high)	Sends the communication signal	-	Ignition switch ON (II)	Pulses
4	BLK	GND (Ground)	Ground for the TPMS control unit	4--GND	At all times	Less than 0.1 V
5	GRY	LF LF SIG. (LF low frequency signal)	Sends the signal to the left-front initiator	5--GND	For the first 5-16 seconds after turning the ignition switch to ON (II)	Pulses 0-2 V
5	GRY	LF LF SIG. (LF low frequency signal)	Sends the signal to the left-front initiator	5--GND	With ignition switch ON (II) for more than 5-16 seconds	Less than 0.1 V
6	LT GRN	RF LF SIG. (RF low frequency signal)	Sends the signal to the right-front initiator	6--GND	For the first 5-16 seconds after turning the ignition switch to ON (II)	Pulses 0-2 V
6	LT GRN	RF LF SIG. (RF low frequency signal)	Sends the signal to the right-front initiator	6--GND	With ignition switch ON (II) for more than 5-16 seconds	Less than 0.1 V
7	LT BLU	K-LINE (Data link connector)	Communications with the HDS	-	-	-
8	YEL	IG1 (Ignition switch 1)	Power source for activating the system	8--GND	Ignition switch ON (II)	Battery voltage
8	YEL	IG1 (Ignition switch 1)	Power source for activating the system	8--GND	Ignition switch OFF	Less than 0.1 V
10	WHT	+B (Battery positive)	Power source for the TPMS control unit	10--GND	At all times	Battery voltage

Fig 2: Identifying TPMS Control Unit Inputs And Outputs 20P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

VOLTAGE SPECIFICATION

Terminal number	Wire color	Terminal sign (Terminal name)	Description	Signal
Terminal number	Wire color	Terminal sign (Terminal name)	Description	Terminal	Conditions	Voltage
11	RED	CAN L (CAN communication signal low)	Sends the communication signal	-	Ignition switch ON (II)	Pulses
15	LT BLU	LF GND (LF low frequency ground)	Ground for the initiators	15--GND	Ignition switch ON (II)	Less than 0.1 V
16	PNK	LR LF SIG. (LR low frequency signal)	Sends the signal to the left-rear initiator	16--GND	For the first 5-16 seconds after turning the ignition switch to ON (II)	Pulses 0-2 V
16	PNK	LR LF SIG. (LR low frequency signal)	Sends the signal to the left-rear initiator	16--GND	With ignition switch ON (II) for more than 5-16 seconds	Less than 0.1 V
17	GRY	RR LF SIG. (RR low frequency signal)	Sends the signal to the right-rear initiator	17--GND	For the first 5-16 seconds after turning the ignition switch to ON (II)	Pulses 0-2 V
17	GRY	RR LF SIG. (RR low frequency signal)	Sends the signal to the right-rear initiator	17--GND	With ignition switch ON (II) for more than 5-16 seconds	Less than 0.1 V
20	BRN	LF PWR. (LF low frequency power)	Power source for the initiators	20--GND	For 5 seconds with ignition switch ON (II)	About 7 V
20	BRN	LF PWR. (LF low frequency power)	Power source for the initiators	20--GND	After 5 seconds with ignition switch ON (II)	-