POWER INTEGRATION SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of the problem symptom. 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.

No. 1 Semiconductor Power Integration ECU
Symptom Suspected Area Link
Headlights do not illuminate Lighting system

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Heater does not operate Air conditioning system

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Air conditioning system does not operate Air conditioning system

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No. 2 Semiconductor Power Integration ECU (w/ PTC Heater)
Symptom Suspected Area Link
PTC heater does not operate Air conditioning system

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No. 3 Semiconductor Power Integration ECU
Symptom Suspected Area Link
Stop lights does not illuminate Lighting system

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Electronically controlled brake system

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Dynamic radar cruise control system

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Pre-collision system

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Rear taillights does not illuminate Lighting system

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Back-up light does not illuminate Lighting system

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Electronic shift lever system

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Rear defogger does not operate Window defogger system

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