Generator Test (Overcharged Battery Check)

WARNING: This page is about a different car, the 2007 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.

To determine battery condition, refer to BATTERY DESCRIPTION .
If obvious overcharge condition exists as evidenced by excessive spewing of electrolyte, measure generator "B" terminal voltage at engine 5000 RPM.

Fig 1: Generator Voltage Graph
Courtesy of SUZUKI OF AMERICA CORP.
If measured voltage is higher than upper limit value, proceed to Generator Inspection .
Check ground of brushes. If brushes are not grounded, replace IC regulator. Then check field coil for grounds and shorts, referring to GENERATOR INSPECTION .