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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Anti-Lock Brake System) >> Self-Diagnostic Tests >> Test 18A: Repairing Blank DRB Screen

Test 18A: Repairing Blank DRB Screen

WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, 1994 Dodge Shadow, and 1994 Chrysler LeBaron. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For connector terminal identification, refer to CONNECTOR IDENTIFICATION . For wiring diagrams, refer to WIRING DIAGRAMS .
  1. Turn ignition off. Disconnect DRB. Turn ignition on. Using an external voltmeter, check voltage on Red wire (AA, AJ and AS bodies) or Pink/Dark Blue wire (AP body) between CCD data link connector and ground. If voltage is less than 10 volts, repair Red wire (AA, AJ and AS bodies) or Pink/Dark Blue wire (AP body) as necessary. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If voltage is more than 10 volts, go to next step.
  2. Turn ignition off. Using an external ohmmeter, check resistance of Black/Light Green wire (AA, AJ and AS bodies) or Black/Yellow wire (AP body) between CCD data link connector and ground. If resistance is more than 20 ohms, repair open in Black/Light Green wire (AA, AJ and AS bodies) or Black/Yellow wire (AP body). Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is less than 20 ohms, go to next step.
  3. Try a different DRB cable. If DRB screen is no longer blank, replace defective DRB cable. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If DRB screen is still blank, go to next step.
  4. Try a different DRB cartridge. If DRB screen is no longer blank, replace defective DRB cartridge. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If DRB screen is still blank, replace defective DRB. Perform TEST VER-1A: SYSTEM VERIFICATION TEST .
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