Outline Of Diagnosis
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Detect the malfunction of high pressure fuel pump circuit function.
Judge as NG when ECM detects any malfunction in the diagnostic items listed below.
Diagnosis 1: Diagnosis for open circuit
Diagnosis 2: Diagnosis for overcurrent
Diagnosis 3: Diagnosis for ground short
Diagnosis 4: Diagnosis for power supply short
Diagnosis 5: Diagnosis for ground short (between ECM and high-pressure fuel pump driver)
Diagnosis 6: Diagnosis for power supply short (between ECM and high-pressure fuel pump driver)