Low Tire Pressure/TPMS indicator does not go off, and no DTCs are stored

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Check for gauge DTCs with the HDS (see WIRE COLOR CODES ). If gauge DTCs are stored, troubleshoot those DTCs first.

Turn the ignition switch to LOCK (0).
Check the No. 2 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse blown?

YES -Replace the fuse. Turn the ignition switch to ON (II), then turn it to LOCK (0) again. If the fuse blows again, repair the short to ground on the No. 2 (7.5 A) fuse circuit.

NO -Reinstall the fuse, then go to step 3.
Check the No. 22 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse blown?

YES -Replace the fuse. Turn the ignition switch to ON (II), then turn it to LOCK (0) again. If the fuse blows again, repair the short to ground on the No. 22 (7.5 A) fuse circuit.

NO -Reinstall the fuse, then go to step 4.
Do the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
Is the gauge control module OK?

YES -Go to step 5.

NO -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
Disconnect the TPMS control unit 20P connector.
Measure the voltage between body ground and TPMS control unit 20P connector terminal No. 10.

Fig 1: Measuring Voltage Between Body Ground And TPMS Control Unit 20P Connector Terminal No. 10
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 7.

NO -Repair an open in the wire between the TPMS control unit and the No. 2 (7.5 A) fuse in the under-dash fuse/relay box.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and TPMS control unit 20P connector terminal No. 8.

Fig 2: Measuring Voltage Between Body Ground And TPMS Control Unit 20P Connector Terminal No. 8
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Go to step 9.

NO -Repair an open in the wire between the TPMS control unit and the No. 22 (7.5 A) fuse in the under-dash fuse/relay box.
Turn the ignition switch to LOCK (0).
Reconnect the TPMS control unit 20P connector.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and TPMS control unit 20P connector terminal No. 3.

Fig 3: Measuring Voltage Between Body Ground And TPMS Control Unit 20P Connector Terminal No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 0.1 V or more?

YES -Repair an open or high resistance in the wire between the TPMS control unit and body ground (G502).

NO -Go to step 13.

Check for continuity between TPMS control unit 20P connector terminal and gauge control module 32P connector terminal (see table).

Terminal name	TPMS Control Unit 20P Connector Terminal	Gauge Control Module 32P Connector Terminal
CAN L	No. 11	No. 19
CAN H	No. 2	No. 20

Fig 4: Checking Continuity Between TPMS Control Unit 20P Connector Terminal And Gauge Control Module 32P Connector Terminal

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit (see TPMS CONTROL UNIT REPLACEMENT ), and recheck.

NO -Repair an open in the wire between the TPMS control unit and the gauge control module.