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Test Description

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

  1. 2. Tests for an open in the ground circuit of the body control module.
  2. 4. Verifies the proper operation of the charging system.
  3. 6. Determines whether the DTC resets.
Fig 1: DTC C1254 Testing Procedures
G01720966Courtesy of GENERAL MOTORS CORP.
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