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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B144B: Run/Crank Power Relay >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

B144B 01, B144B 04 

No action is taken.

B144B 02 

The ignition main relay is deactivated when the fault is set. After 100ms, the ignition main relay will be activated. If the fault is still set, the relay will be deactivated. The ignition main relay will again be activated after 100ms. If this also results in a fault, the ignition main relay will be deactivated until a new ignition request is received.

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