1995 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE

DTC 16: Traction Control System (TCS) Signal

  1. Check Input Signal Circuit

    Turn ignition off. Disconnect ECM harness connector and Traction Control Module (TCM) 20-pin harness connector. Check harness continuity between ECM terminal No. 36 and TCM terminal No. 7 (Red/Green wire). See Fig 1 and Fig 2 . If continuity is present, go to next step. If continuity is not present, verify harness and connector continuity between ECM and TCM. Repair harness or connectors as necessary.
  2. Check Component

    Inspect TCS function. Replace TCS component(s) if necessary and perform FINAL CHECKΒ  .
Fig 1: Locating Traction Control Module - TCM (Q45)
G93A78618Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.