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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 17A: DRB No Response Message

Test 17A: DRB No Response Message

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 CAB 60-pin connector. See Figure. Put DRB in voltmeter mode. Turn ignition on. Using DRB, check voltage on CAB 60-pin connector terminal No. 60 (Dark Blue wire on AA, AP and AS bodies or Dark Blue/White wire on AJ body). If reading is less than 9 volts, repair open in Dark Blue wire on AA, AP and AS bodies or Dark Blue/White wire on AJ body. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If reading is more than 9 volts, go to next step.
  2. Turn ignition off. Put DRB in ohmmeter mode. Using DRB, check resistance of CAB 60-pin connector terminal No. 5 (Black wire). If resistance is more than 5 ohms, repair open in Black wire. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is less than 5 ohms, go to next step.
  3. Using DRB, backprobe White/Violet wire at CCD data link connector. See Figure. If resistance is less than 5 ohms, repair short to ground in White/Violet wire. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is more than 5 ohms, go to next step.
  4. Using DRB, backprobe Orange wire at CCD data link connector. If resistance is less than 5 ohms, repair short to ground in Orange wire. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is more than 5 ohms, go to next step.
  5. Connect a jumper wire between chassis ground and CAB connector terminals No. 11 (White/Violet wire) and No. 12 (Orange wire). Using DRB, backprobe White/Violet wire at CCD data link connector. If resistance is more than 5 ohms, repair open in White/Violet wire. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is less than 5 ohms, go to next step.
  6. Using DRB, backprobe Orange wire at CCD data link connector. If resistance is more than 5 ohms, repair open in Orange wire. Perform TEST VER-1A: SYSTEM VERIFICATION TEST . If resistance is less than 5 ohms, replace CAB. Perform TEST VER-1A: SYSTEM VERIFICATION TEST .