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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1081 (Body Control System) >> Diagnostic Information and Procedures >> DTC B1507 or B1508: High Power Control Circuit Low/High >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

A DTC B1507 or 1508 will set when the load control circuit does not react as commanded. A DTC B1507 will set if the BCM enables the control circuit and the output does not react within 400 ms. A DTC B1508 will set if the BCM disables the control circuit and the output does not react within 400 ms.

DTC B1507 or B1508

DTC Condition
B1507 Low Voltage on Control Circuit
B1508 High Voltage on Control Circuit
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