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Home >> Infiniti >> 2002 >> I35 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0037: Ho2S2 Heater Control Circuit Low - Bank 1, DTC P0038: Ho2S2 Heater Control Circuit High - Bank 1, DTC P0057: Ho2S2 Heater Control Circuit Low - Bank 2 &/Or DTC P0058: Ho2S2 Heater Control Circuit High - Bank 2 >> DTC Confirmation Test (Using Generic Scan Tool)
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DTC Confirmation Test (Using Generic Scan Tool)

Start engine and drive vehicle at a speed of more than 43 MPH for 2 consecutive minutes. Stop vehicle and let engine idle for at least 6 seconds. Turn ignition off and wait at least 10 seconds. Start engine and drive vehicle at a speed of more than 43 MPH for 2 consecutive minutes. Stop vehicle and let engine idle for at least 6 seconds. Select MODE 3 with scan tool. If DTC is detected, go to DIAGNOSTIC PROCEDURE  . If DTC is not detected, system is okay at this time.

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