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Home >> Buick >> 1999 >> Regal LS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Diagnostic Tests >> DTC U1300: Class 2 Circuit (Short To Ground) >> Diagnostic Aids

Diagnostic Aids

The following conditions may cause an intermittent DTC: intermittent short to ground in circuits No. 1036 (Gray wire), No. 1037 (Light Green wire), No. 1038 (White wire), No. 1049 (Dark Green wire), No. 1122 (Light Blue wire), or No. 1132 (Purple wire); or internal short to ground in instrument cluster, BCM, A/C-heater control, PCM, EBCM/EBTCM, or splice pack SP205.