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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Anti-Lock Brake System) >> Self-Diagnostic Tests >> Test 28A - Traction Control Valve #2

Test 28A - Traction Control Valve #2

WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAM.
  1. Using DRB, read fault messages. If DRB displays MAIN RELAY/POWER CIRCUIT FAILURE, go to TEST 14A. If DRB does not display MAIN RELAY/POWER CIRCUIT FAILURE, go to next step.
  2. If DRB does not display TRACTION CONTROL VALVE #1, go to next step. If DRB displays TRACTION CONTROL VALVE #1, verify vehicle is equipped with correct CAB. On models without LTCS, CAB has White part label. On models with LTCS, CAB has Blue part label. If vehicle is not equipped with correct CAB, replace CAB. Perform TEST VER-1A. If vehicle is equipped with correct CAB, go to next step.
  3. Turn ignition off. Disconnect CAB from HCU. See Figure. Inspect 14-pin connection. If connection is faulty, repair as necessary. Perform TEST VER-1A. If terminals are backed-out, replace HCU. Perform TEST VER-1A. If connection is okay, go to next step.
  4. Using an external ohmmeter, check resistance between valve block connector terminals No. 7 and 9. See Figure. If resistance is not 5-8 ohms, replace HCU. Perform TEST VER-1A. If resistance is 5-8 ohms, replace CAB. Perform TEST VER-1A.
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