Flag 15

Diagnostic Chart:

Circuit Diagram:

SWITCHED BATTERY CIRCUIT SHORTED TO B+
The ABS control module receives battery voltage when the system enable relay contacts are closed. Voltage at this input provides the power source for the three DC motors and two solenoids. If the ABS control module detects a fault in this circuit, it will set the information flag, but the ABS system will not be disabled.

INFORMATION FLAG PARAMETERS

Information flag 15 sets if:
^ Switched battery circuit is shorted to B+.

DIAGNOSTIC AIDS
When attempting to diagnose an intermittent problem, use the Scan tool[1] to review supplemental diagnostic information. The supplemental data can be used to duplicate a problem.


Intermittents or opens suspected to be at the connectors can be detected by using a diagnostic service probe. Voltage can be read on wires without disconnecting any connectors.

Check the tightness of the female terminal grip with a spare male terminal.

Circuit 1633 should have battery voltage at all times.

[1] Select Malfunction History from Scan tool ABS menu.