FixVault

Diagnostic Aids

When diagnosing intermittent problems, select MALF HISTORY from scan tool ABS menu. Supplemental data can be used to duplicate problem. Ensure terminals make good connection. Measure motor resistance. Resistance should be less than 2 ohms.

Fig 1: Code 56 Schematic
G95I15485Courtesy of GENERAL MOTORS CORP.
Fig 2: Code 56 Flow Chart
G95A15487Courtesy of GENERAL MOTORS CORP.