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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternator & Regulator >> Trouble Code Charts >> Trouble Code B410 - Charging System Circuit >> Note On Intermittents

Note On Intermittents

If an intermittent condition exists, check B410 snap data parameters, BD61 and BI51.

  1. If BD61 is less than 500 RPM and BI51 is HI, check for an intermittent open in circuit No. 25.
  2. If BD61 is less than 500 RPM and BI51 is LO, check for an intermittent short to ground in circuit No. 23.
  3. If BD61 is more than 500 RPM and BI51 is HI, check for an intermittent short to ground in circuit No. 23.
  4. If BD61 is more than 500 RPM and BI51 is LO, check for an intermittent short to ground in circuit No. 25.