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Home >> Acura >> 2012 >> TL Base >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Tire Pressure Monitoring System >> Symptom Troubleshooting >> TPMS indicator does not go off, and no DTCs are stored

TPMS indicator does not go off, and no DTCs are stored

NOTE: If the TPMS control unit was replaced, the TPMS indicator will be on until all four tire pressure sensor ID codes are learned.
  1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  2. Check the No. 29 (7.5 A) fuse in the driver's under-dash fuse/relay box.

    Is the fuse blown? 

    YES  - Replace the fuse. Turn the ignition switch to ON (II) and then back to LOCK (0), or press the engine start/stop button to select the ON mode and then the OFF mode. If the fuse blows again, repair the short to ground on the No. 29 (7.5 A) fuse circuit.

    NO  - Reinstall the checked fuse, then go to step 3.

  3. Check the No. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box.

    Is the fuse blown? 

    YES  - Replace the fuse. Turn the ignition switch to ON (II) and then back to LOCK (0), or press the engine start/stop button to select the ON mode and then the OFF mode. If the fuse blows again, repair the short to ground on the No. 12 (7.5 A) fuse circuit.

    NO  - Reinstall the checked fuse, then go to step 4.

  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 ).

  5. Disconnect the TPMS control unit 20P connector.
  6. 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
    G08067122Courtesy 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. 29 (7.5 A) fuse in the driver's under-dash fuse/relay box.

  7. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  8. 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
    G08067123Courtesy 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. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box.

  9. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  10. Reconnect the TPMS control unit 20P connector.
  11. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  12. 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
    G08067124Courtesy 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 (G403).

    NO  - Go to step 13.

  13. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  14. Disconnect gauge control module 32P connector.
  15. Disconnect the TPMS control unit 20P connector.
  16. Check for continuity between the TPMS control unit 20P connector terminals and the gauge control module 32P connector terminals according to the table.
    Terminal Name TPMS Control Unit 20P Connector Terminal Gauge Control Module 32P Connector
    F-CAN L No. 11 No. 13
    F-CAN H No. 2 No. 14
    Fig 4: Checking Continuity Between TPMS Control Unit 20P And Gauge Control Module 32P Connector Terminals
    G08067125Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Do the troubleshooting for the gauge control module (see SELF-DIAGNOSTIC FUNCTION ). If the gauge control module is OK, check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit (see GAUGE CONTROL MODULE REPLACEMENT ), and recheck.

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