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Home >> Acura >> 2011 >> MDX >> Repair and Diagnosis (Single Page) >> Suspension >> Wheels & Tire System >> TPMS (Tire Pressure Monitoring System) >> System Description >> TPMS Control Unit Inputs and Outputs 20P Connector
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TPMS Control Unit Inputs and Outputs 20P Connector

Fig 1: Identifying TPMS Control Unit 20P Connector Terminals
G08052963Courtesy of AMERICAN HONDA MOTOR CO., INC.
Terminal number Wire color Terminal sign (Terminal name) Description Signal
Terminal Conditions Voltage
1 WHT F-CAN A 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
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
With ignition switch ON (II) for more than 5-16 seconds Less than 0.1 V
7 ORN 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 (about 12V)
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 (about 12V)
Fig 2: Identifying TPMS Control Unit 20P Connector Terminals
G08052964Courtesy of AMERICAN HONDA MOTOR CO., INC.
Terminal number Wire color Terminal sign (Terminal name) Description Signal
Terminal Conditions Voltage
11 RED F-CAN A 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
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
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
After 5 seconds with ignition switch ON (II) ---