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Test 7A - Short To Battery

CAUTION: Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
  1. Using scan tool, indicate whether vehicle is equipped with specific module. For module/system options available, refer to the MODULE APPLICATIONS  table under IDENTIFICATION. Turn ignition off. Disconnect Transmission Control Module (TCM) connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace TCM. Perform TEST VER-1 .
  2. If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Powertrain Control Module (PCM) connector.
  3. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 7B . If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Controller Anti-Lock Brake (CAB) module connector, if equipped.
  4. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 7C . If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Mechanical Instrument Cluster (MIC) or Electronic Instrument Cluster (EIC) connector. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 7E . If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Vehicle Theft Security System (VTSS) module connector, if equipped.
  5. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace VTSS module. Perform TEST VER-1 . If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect compass/mini trip module connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace compass/mini trip module. Perform TEST VER-1 .
  6. If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Infinity premium radio, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace radio/CD player. Perform TEST VER-1 .
  7. If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Wait 2 minutes before proceeding. Disconnect Air Bag Control Module (ACM), if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace ACM. Perform TEST VER-1 .
  8. If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Automatic Temperature Control (ATC) module connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace ATC module. Perform TEST VER-1 .
  9. If scan tool displays BUS SHORT TO BATTERY, turn ignition off. Disconnect Body Control Module (BCM) connectors, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 7F . If scan tool displays BUS SHORT TO BATTERY, disconnect scan tool from Data Link Connector (DLC).
  10. Using an external voltmeter, check voltage between DLC, CCD BUS positive circuit (White/Violet wire on YJ body; Violet/Brown wire on all others) and ground. If voltage is more than 8 volts, repair short to voltage in CCD BUS positive circuit. Perform TEST VER-1 .
  11. If voltage is less than 8 volts, check voltage between DLC, CCD BUS negative circuit (White/Black wire XJ body; Orange wire on YJ body; White/Gray wire on ZJ body) and ground.
  12. If voltage is more than 8 volts, repair short to voltage in CCD BUS negative circuit. Perform TEST VER-1 . If voltage is less than 8 volts, replace scan tool, scan tool cable or cartridge as necessary. Perform TEST VER-1 .
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