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Home >> GMC >> 2002 >> C3500 HD 8.1 G, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L >> Diagnostic Information and Procedures >> DTC P1275 >> Test Description

Test Description

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

  1. 12. This test isolates whether the short is to another TAC system circuit in the harness or within the TAC module.
  2. 26. When the TAC module detects a condition within the TAC system, more than one TAC system related DTC may set. This is due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Disconnecting components during testing may set additional DTCs. Keep this in mind when reviewing the stored information, Capture Info.
Fig 1: DTC P1275 (1 Of 3)
G01599090Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P1275 (2 Of 3)
G01599091Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P1275 (3 Of 3)
G01599092Courtesy of GENERAL MOTORS CORP.