Note On Intermittents

If an intermittent condition exists, check B410 snap data parameters BD61 and BI51. Also check for the following conditions:

• If BD61 is under 500 RPM and BI51 is high, check for an intermittent open in circuit No. 25.
• If BD61 is under 500 RPM and BI51 is low, check for an intermittent short to ground in circuit No. 23.
• If BD61 is over 500 RPM and BI51 is high, check for an intermittent short to ground in circuit No. 23.
• If BD61 is over 500 RPM and BI51 is low, check for an intermittent short to ground in circuit No. 25.

Also perform the battery and charging system checks, to ensure proper operation of these components.

Fig 1: Code B410: Circuit Diagram

Fig 2: Code B410: Flow Chart Charging System Circuit Fault