DTC 151-31: TPMS Switch Circuit Open

Fig 1: VSA (TPMS) DTC Troubleshooting Flow Chart (151-31)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE:

Pressing and holding the TPMS switch for more than 60 seconds will cause this DTC to set.
Before you troubleshoot, record all freeze data and any on-board snapshot, and review the how to troubleshooting information.

DTC Description	DTC	Freeze Frame
151-31 TPMS Switch Circuit Open

Problem verification:

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Turn the ignition switch to ON (II), then wait for 60 seconds or more.

5. Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
151-31 TPMS Switch Circuit Open

Is DTC 151-31 indicated?

YES : The failure is duplicated. Go to step 2.

NO : Intermittent failure, the system is OK at this time.

Open wire check (TPMS_SW line) 1:
- 1. Turn the ignition switch to LOCK (0).
- 2. Disconnect the following connector.
  TPMS switch 5P connector
- 3. Turn the ignition switch to ON (II).
- 4. Measure the voltage between test points 1 and 2.
  Test condition IG ON (II)
  
  TPMS switch 5P connector: disconnected
  
  Test circuit TPMS_SW
  
  Test point 1 TPMS switch 5P connector No. 4 (YEL)
  
  Test point 2 Body ground
  
  Fig 2: Measuring Voltage Between TPMS Switch 5P Connector No. 4 (YEL) And Body Ground
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?

YES : The TPMS_SW wire is not open. Go to step 3.

NO : Go to step 4.
Open wire check (GND line):
- 1. Measure the voltage between test points 1 and 2.
  Test condition IG ON (II)
  
  TPMS switch 5P connector: disconnected
  
  Test circuit GND
  
  Test point 1 TPMS switch 5P connector No. 4 (YEL)
  
  Test point 2 TPMS switch 5P connector No. 5 (BLK)
  
  Fig 3: Measuring Voltage Between TPMS Switch 5P Connector No. 4 (YEL) And No. 5 (BLK)
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?

YES : The GND wire is OK. Check the TPMS switch.

NO : Repair an open in the wire between the TPMS switch and body ground (G501).
Open wire check (TPMS_SW line) 2:
- 1. Turn the ignition switch to LOCK (0).
- 2. Remove the gauge control module (Do not disconnect the connector) See Rewriting the ODO Data and Transferring the Maintenance Minder™ Data to a New Gauge Control Module or GAUGE CONTROL MODULE REMOVAL AND INSTALLATION .
- 3. Turn the ignition switch to ON (II).
- 4. Measure the voltage between test points 1 and 2.
  Test condition IG ON (II)
  
  TPMS switch 5P connector: disconnected
  
  Gauge control module 32P connector: connected
  
  Test circuit TPMS_SW
  
  Test point 1 Gauge control module 32P connector No. 24 (YEL)
  
  Test point 2 Body ground
  
  Fig 4: Measuring Voltage Between Gauge Control Module 32P Connector No. 24 (YEL) And Body Ground
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?

YES : Repair an open in the wire between the TPMS switch and the gauge control module.

NO : DO THE TROUBLESHOOTING FOR THE GAUGE CONTROL MODULE . If necessary, substitute a known-good gauge control module, and recheck See Rewriting the ODO Data and Transferring the Maintenance Minder™ Data to a New Gauge Control Module or GAUGE CONTROL MODULE REMOVAL AND INSTALLATION .