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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Diagnostic Information & Procedures >> DTC P1632: Fuel Disabled Password From BCM Or Undecided Password Was Sent From BCM >> Diagnostic Aids

Diagnostic Aids

Attempting to start the vehicle by bypassing the Passlock system or by substituting parts without performing the Programming Theft Deterrent System Components procedure may set a DTC P1631 and a P1632.

If no password is received, a DTC U1064 and P1632 may be set.

An intermittent may be caused by a poor connection, a rubbed through wire insulation, or by a wire broken inside the insulation.

Thoroughly check any suspected circuitry for the following items:

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