DTC 151-31: TPMS Switch Circuit Open

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 general troubleshooting information: Refer to General Troubleshooting Information .

1. Problem verification

   -1. Turn the ignition switch to ON (ll), or press the engine start/stop button to select the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

   - 4. Turn the ignition switch to ON (ll), or press the engine start/stop button to select the ON mode.

   - 5. Wait 60 seconds or more.

   - 6. 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 below.

   NO 

   Intermittent failure, the system is OK at this time.

2. Open wire check (TPMS SW line) 1

   -1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

   - 2. Disconnect the following connector.

   TPMS switch 2P connector .

   - 3. Turn the ignition switch to ON (ll), or press the engine start/stop button to select the ON mode.

   - 4. Measure the voltage between test points 1 and 2.

   Test condition	IG ON (ll), or ON mode
   	TPMS switch 2P connector: disconnected
   Test circuit	TPMS SW
   Test point 1	TPMS switch 2P connector No. 1 (RED)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The TPMS SW wire is not open. Go to step 3 below.

   NO 

   Go to step 4 below.

3. Open wire check (GND line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	IG ON (ll), or ON mode
   	TPMS switch 2P connector: disconnected
   Test circuit	GND
   Test point 1	TPMS switch 2P connector No. 1 (RED)
   Test point 2	TPMS switch 2P connector No. 2 (BRN)

   Courtesy of HONDA, U.S.A., 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 (G502).

4. Open wire check (TPMS SW line) 2

   -1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

   - 2. Remove the gauge control module (Do not disconnect the connector).

   - 3. Turn the ignition switch to ON (ll), or press the engine start/stop button to select the ON mode.

   - 4. Measure the voltage between test points 1 and 2.

   Test condition	IG ON (ll), or ON mode
   	Gauge control module connector A (32P): connected
   	TPMS switch 2P connector: disconnected
   Test circuit	TPMS SW
   Test point 1	Gauge control module connector A (32P) No. 3 (RED)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

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

   NO 

   The TPMS SW wire is OK. Do the troubleshooting for the gauge control module - Refer to: Gauges Self-Diagnostic Function (2013-15), or Gauges Self-Diagnostic Function (2016-17) . If necessary, substitute a known-good gauge control module , and recheck.