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Home >> GMC >> 1997 >> C3500 HD 7.4 J, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 7.4L >> Diagnostic Trouble Codes >> DTC P1380 - Electronic Brake Control Module (EBCM) DTC Detected Rough Road Data Unusable >> Circuit Description

July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit Description

This diagnostic determines if ABS is capable of detecting a rough road situation.

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