2003 Bombardier Outlander 400 Factory Service Manual, Page 219Get this manual
Section 05 ELECTRICAL Subsection 03 (CHARGING SYSTEM)
CHARGING SYSTEM
TESTING PROCEDURE
NOTE: First, ensure that battery is in good condition prior to performing the following test using current inductive ammeter such as Snap-on MT 110If the battery is regularly discharged, check main fuse (20 amp) condition0
DYNAMIC TEST Current Test Proceed as follows: Start engine Lay an inductive ammeter on positive cable of battery Bring engine to approximately 3500 RPMDepending on battery charge, current reading should be approximately amperesIf not, check magneto output prior to concluding that voltage regulatorrectifier is faultyVoltage Test Proceed as follows: Start engine Connect multimeter to battery postsSet multimeter to Vdc scale Bring engine to approximately 3500 RPMIf multimeter reads over 15.1 0.5 volts, voltage regulatorrectifier is defectiveReplace itNOTE: Whatever the voltmeter type used (peak voltage or RMS), the voltage must not exceed 15 VA faulty voltage regulatorrectifier will allow voltage to exceed 15 as engine speed is increasedNOTE: If the battery will not stay charged, the problem can be any of the charging circuit componentsIf these all check good, you would be accurate in assuming the problem to be in the voltage regulatorrectifierIf there is no charging at the battery with the preceding voltage test, the following test can also be performedNOTE: If the voltage regulatorrectifier is within the specification, the wiring harness between the voltage regulatorrectifier and battery is defectiveIf the voltage regulatorrectifier is out of specification and the stator test good, the voltage regulator rectifier is defective