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Traction Control Indicator Is Inoperative

WARNING: This page is about a different car, the 2001 Mercury Cougar, 2000 Mercury Mystique, 2000 Mercury Cougar, and 2000 Ford Contour. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect ABS control module connector. Measure resistance of Black/White wire between ABS control module connector and ground while pressing and releasing traction control switch. If resistance is less than 5 ohms with switch depressed, and more than 10 k/ohms with switch released, go to step 4)  . If resistance is not as specified, go to next step.
  2. Disconnect traction control switch 8-pin connector. Measure resistance of Black/White wire between ABS control module connector and traction control switch connector. Measure resistance of Black/White wire between ABS control module connector and ground. If resistance is less than 5 ohms between switch connector and ABS connector, and more than 10 k/ohms between ABS connector and ground. Go to next step. If resistance is not as specified, repair Black/White wire. Repeat self-test.
  3. Measure resistance of Black wire between traction control switch connector and ground. If resistance is less than 5 ohms, replace traction control switch. If resistance is more than 5 ohms, repair Black wire. Repeat self-test.
  4. Turn ignition on. Momentarily connect fused (10-amp) jumper wire between ABS control module connector Black/Green wire terminal and ground, while observing traction control indicator. If indicator illuminates, replace Hydraulic Control Unit (HCU). Repeat self-test. If indicator does not come on, go to next step.
  5. On Contour and Mystique, turn ignition off. Disconnect traction control switch connector. Turn ignition on. Measure voltage of Black/Green wire between traction control switch and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair Black/Green wire. Repeat self-test.
  6. On Cougar, turn ignition off. Disconnect traction control switch connector. Turn ignition on. Measure voltage of Green/Black wire between traction control switch and ground. If voltage is more than 10 volts, go to next step. If voltage is less than 10 volts, repair Green/Black wire. Repeat self-test.
  7. On Contour and Mystique, turn ignition off. Measure resistance of Green/Black wire between ABS control module connector and traction control switch connector. If resistance is less than 5 ohms, replace traction control switch. repeat self-test. If resistance is more than 5 ohms, repair Green/Black wire. Repeat self-test.
  8. On Cougar, turn ignition off. Measure resistance of Black/Green wire between ABS control module connector and traction control switch connector. If resistance is less than 5 ohms, replace traction control switch. repeat self-test. If resistance is more than 5 ohms, repair Black/Green wire. Repeat self-test.
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