TIRE PRESSURE WARNING SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips


  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Tire Pressure Warning System
Symptom Suspected Area See page
Tire pressure warning light does not illuminate despite tire pressure decreasing Initialization

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Check Data List (ID Tire Inflation Pressure)

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ID code check (Registration)

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Tire pressure warning light remains illuminated (Goes off during initial check) Tire pressure warning light circuit

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Tire pressure warning light remains illuminated (Illuminates during initial check) Check Data List (ID Tire Inflation Pressure)

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Tire pressure adjustment

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ID code check (Registration)

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Initialization

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Initialization cannot be done Tire pressure warning reset switch

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DTC check cannot be done using SST check wire TC and CG terminal circuit

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ECM

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Power management control ECU

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ECU power source circuit

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