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Test 17A - No Termination

  1. Turn ignition off. Disconnect scan tool from DLC. Disconnect Body Control Module (BCM) connectors. Using external ohmmeter, measure resistance between terminals No. 19 and 20 on BCM component socket "A". If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
  2. Connect jumper wire between ground and terminal No. 19 (Violet/Brown wire) on BCM Black connector. Using scan tool, select SYSTEM MONITORS. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
  3. Move jumper wire to terminal No. 20 (White/Black wire) on BCM Black connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
  4. Disconnect Powertrain Control Module (PCM) connectors. Using external ohmmeter, measure resistance between terminals C28 and C30 on PCM component Gray connector. If resistance is not 100-140 ohms, replace PCM. If resistance is 100-140 ohms, go to next step.
  5. Connect jumper wire between ground and terminal C30 (Violet/Brown wire) on PCM Gray connector. Using scan tool, select SYSTEM MONITORS. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
  6. Move jumper wire to terminal C28 (White/Black wire) on PCM Gray connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, replace scan tool cable or scan tool.
NOTE: For connector terminal identification, refer to CONNECTOR IDENTIFICATION  . For wiring diagrams, refer to WIRING DIAGRAMS  . After each repair, perform TEST VER-1A  .
CAUTION: Always turn ignition off prior to disconnecting any module connector.
NOTE: Ignition off during bus test is most common cause for this trouble code.
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