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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 337 (Engine Cooling System) >> Diagnostic Information and Procedures >> Diagnostic Code Index
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Diagnostic Code Index

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC P1258  P1258: Engine Coolant Over temperature - Protection Mode Active
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