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Test 2: No Communication With Traction Control System (TCS) Module

  1. Turn ignition off. Disconnect TCS connector (C830). Turn ignition on. Using a DVOM, measure voltage between TCS terminal No. 22 (Green/Yellow wire) and ground. See WIRING DIAGRAMS . If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Green/Yellow wire.
  2. Turn ignition off. Measure resistance between TCS connector terminal No. 15 (Black/Yellow wire) and ground. Measure resistance between TCS connector terminal No. 32 (Black/Blue wire) and ground. If resistances are less than 5 ohms, see appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. If resistances are greater than 5 ohms, repair faulty circuit.
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