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Home >> Pontiac >> 2009 >> Torrent Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B257A >> Circuit/System Verification
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Circuit/System Verification

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Ignition ON with the headlamp switch in the Auto position, observe the scan tool Exterior Lighting parameters listed below. All parameters should be Inactive.