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Home >> Chrysler >> 2000 >> Voyager Base, 2.4 B >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System- TEVES Mark 20 >> Diagnostic Tests >> Test 16A: Traction Control Switch Problem

Test 16A: Traction Control Switch Problem

NOTE: Perform TEST 1A  before proceeding. To identify circuits, connectors and terminals referenced in testing, see WIRING DIAGRAMS  and CONNECTOR IDENTIFICATION  . After each repair, perform TEST VER-1A  to verify problem has been corrected.
NOTE: Repair other Diagnostic Trouble Code (DTC) before proceeding with this test.
  1. Turn ignition on. Observe TRAC OFF light while pressing Traction Control System (TCS) switch several times. TRAC OFF light is located in PRNDL display. If TRAC OFF light switches on and off as switch is pressed, TCS switch is operating properly at this time. If TRAC OFF light does not switch, go to next step.
  2. Turn ignition off. Observe TRAC OFF light. Turn ignition on. IF TRAC OFF light comes on for 2-3 seconds then goes off, go to next step. If TRAC OFF light does not come on for 2-3 seconds then go out, diagnose PRNDL display. See TRANSMISSION GEAR INDICATOR (PRND3L/PRND1234) test under SYSTEM TESTS in ANALOG INSTRUMENT PANELS - CARAVAN, TOWN & COUNTRY, & VOYAGER article in ACCESSORIES & EQUIPMENT.
  3. Turn ignition off. Disconnect Controller Anti-Lock Brake (CAB) connector. CAB is located behind steering rack, on left side of suspension crossmember. Inspect connector for any damaged or pushed out terminals. Repair connector as necessary. If terminals are okay, go to next step.
  4. Disconnect Traction Control System (TCS) switch connector. Using an external ohmmeter, check resistance of TCS switch sense circuit (Red/Yellow wire) between TCS switch connector terminal No. 2 and CAB connector terminal No. 22. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Red/Yellow wire.
  5. Ensure ignition is off. Reconnect CAB connector. Connect a test light between battery voltage and TCS switch connector terminal No. 1, ground circuit (Black wire). If test light illuminates, go to next step. If test light does not illuminate, repair open Black wire.
  6. Ensure ignition is off. Disconnect CAB connector. Connect a test light between battery voltage and CAB connector terminal No. 22, TCS switch sense circuit (Red/Yellow wire). If test light does not illuminate, go to next step. If test light illuminates, repair short to ground in Red/Yellow wire.
  7. Turn ignition on. Using a voltmeter, check voltage on CAB connector terminal No. 22 (Red/Yellow wire). If voltage is one volt or less, go to next step If voltage is more than one volt, repair short to voltage in Red/Yellow wire.
  8. Turn ignition off. Reconnect CAB connector. Using an ohmmeter, check resistance between TCS switch terminals No. 1, ground circuit (Black wire) and No. 2, TCS switch sense circuit (Red/Yellow wire). Depress TCS switch. If resistance is less than 5 ohms, replace CAB. See CONTROLLER ANTI-LOCK BRAKE  under REMOVAL & INSTALLATION. If resistance is 5 ohms or more, replace TCS switch.
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