Combustion Type Power Heater System - How To Proceed With Troubleshooting

Lexus IS250 IS220d GSE20 ALE20 - HEATER


COMBUSTION TYPE POWER HEATER SYSTEM - HOW TO PROCEED WITH TROUBLESHOOTING


1.VEHICLE BROUGHT TO WORKSHOP
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2.CUSTOMER PROBLEM ANALYSIS
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3.CHECK AND CLEAR DTC
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4.PROBLEM SYMPTOM CONFIRMATION
  • Result:
  • ResultProceed to
    Symptom does not occurA
    Symptom occursB
B.
GO TO STEP 6
A
5.SYMPTOM SIMULATION
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6.DTC CHECK
  • Result:
  • ResultProceed to
    Trouble codeA
    Normal system codeB
A.
GO TO STEP 8
B
7.DTC CHART
NEXT.
GO TO STEP 10
8.PROBLEM SYMPTOMS TABLE
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9.CIRCUIT INSPECTION
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10.IDENTIFICATION OF PROBLEM
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11.PARTS INSPECTION
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12.REPAIR
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13.CONFIRMATION TEST
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END