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Test Description

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 4.  The scan tool displays the actual voltage code sent from the Passlock cylinder. This voltage should be within 0-5 volts. If it is not, a theft deterrent B code will be set and should be diagnosed first.
Fig 1: Identifying DTC P1632 Diagnostic Table (1 Of 2)
G01779979Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying DTC P1632 Diagnostic Table (2 Of 2)
G01779980Courtesy of GENERAL MOTORS CORP.