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Head Restraint Up/Down Function Does Not Operate

  1. If diagnostic system check was performed, go to next step. If diagnostic system check was not performed, go to DIAGNOSTIC SYSTEM CHECK  .
  2. Connect scan tool to Data Link Connector (DLC). Using scan tool, select memory seat module inputs. Move head restraint up/down switch up. If scan tool indicates switch action, go to next step. If scan tool does not indicate switch action, go to step 6).
  3. With memory seat module inputs still selected, move head restraint up/down switch down. If scan tool indicates switch action, go to next step. If scan tool does not indicate switch action, go to step 6).
  4. Disconnect head restraint up/down motor connector. Connect unpowered test light between head restraint up/down motor harness connector terminal "A" (White wire) and ground. Move head restraint up/down switch up. If test light illuminates, go to next step. If test light does not illuminate, go to step 8).
  5. Connect unpowered test light between head restraint up/down motor harness connector terminal "B" (Gray wire) and ground. Move head restraint up/down switch down. If test light illuminates, go tostep 7). If test light does not illuminate, go to step 9).
  6. Replace head restraint switch. Recheck system operation.
  7. Replace head restraint up/down motor. See REMOVAL & INSTALLATION in POWER SEATS article. Perform DIAGNOSTIC SYSTEM CHECK  .
  8. Repair open in White wire between head restraint up/down motor and MSM. Perform DIAGNOSTIC SYSTEM CHECK  .
  9. Repair open in Gray wire between head restraint up/down motor and MSM. Perform DIAGNOSTIC SYSTEM CHECK  .
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