tC L4-25L Maintenance: Tire Monitoring System Info & TSBs
Reference
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After cycling the ignition to the "IG-ON" position, the Low Tire Pressure Warning Light will blink for 1 minute and then turn ON until all the tire
pressure warning valves/sensors are activated.
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The Diagnostic Trouble Codes (DTCs) listed below may be stored in the TPWS ECU until the tire pressure warning valves/sensors are activated.
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The DTCs will automatically clear when the tire pressure warning valves/sensors are activated.
Activation Procedure
1. Connect TIS Techstream.
2. Cycle the ignition switch to the "IG-ON" position and check that the Low Tire Pressure Warning Light blinks for 1 minute, and then remains
illuminated.
3. Press or remove the valve core to reduce the tire inflation pressure rapidly by 6 psi (0.4 kgf/sq.cm,40 kPa), or more, within 30 seconds.
If the tire inflation pressure is NOT reduced by 6 psi (0.4 kgf/sq.cm, 40 kPa), or more, within 30 seconds, the tire pressure warning valves/sensors
will NOT be activated.
This operation is required for the system to be activated and MUST be performed for each tire (EXCEPT the spare tire), one at a time.
4. Check that the Low Tire Pressure Warning Light goes OFF after all the tire pressure warning valves/sensors are activated.
5. Using TIS Techstream, check for TPWS DTCs.
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If NO DTCs are stored, go to step 1 of the Initialization Procedure.
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If DTCs C2111 - C2114 are stored, repeat step 3.
If DTCs (C2111 - C2114) are output after repeating step 3, turn the tires 90 - 270 degrees.