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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1433 (Sunroof System) >> Diagnostic Information and Procedures >> DTC B1325 and B1335 >> Circuit Description

Circuit Description

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The power roof module has a high and low power feed. The low power feed, battery 1, is used to provide power for the roof module logic and internal driver operation. The high power feed, battery 2, is used to provide power for the roof motor which draws higher amounts of current. The roof module monitors the voltage level at battery 1 and battery 2 to determine if the voltage level is out of range. If the voltage level is out of range, a DTC is set.

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