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TEST ACTION APPLICABILITY 2 With the DRBIII t, read Transmission DTCs. Are there any Improper Gear and/or Improper Ratio DTCs present? All Yes → Refer to the Transmission category and perform the appropriate symptom. No → Go To 3 3 Verify the correct axle gear ratio and make sure there are no mechanical problems. All Yes → Refer to the Service Information for proper repair procedures. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. No → Go To 4 4 Determine if the Transmission is mechanically slipping. All Yes → Repair internal transmission as necessary. Refer to the Service Information for the proper repair procedure. No → Replace the Transmission Control Module. Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1. 126 TRANSMISSION - NAG1 TRANSMISSION SLIPPING — Continued |