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Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 (On-Board Diagnostic [Engine Control System]) >> DTC P0037: Middle Ho2S Heater Circuit Low Input >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P0037: Diagnostic Procedure Chart (Steps 1 & 2)
G00974410Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P0037: Diagnostic Procedure Chart (Steps 3-8)
G00974411Courtesy of MAZDA MOTORS CORP.


Fig 1: DTC P0037: Diagnostic Procedure Chart (Steps 1-4)
G00974414Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P0037: Diagnostic Procedure Chart (Steps 5-10)
G00974415Courtesy of MAZDA MOTORS CORP.