2008 Mercury Sable Base, FWDFACTORY OEM SERVICE PROCEDURE

Wiper/Washer Systems DTCS

SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Source Perform Test
B2008 Wipers On Signal Circuit Short to Ground SJB Go to Pinpoint Test J .
B2077 Liftgate Ajar Switch Circuit Failure SJB REFER to INTERIOR LIGHTING article to diagnose the liftgate ajar switch concern before attempting to diagnose wiper system concerns.
All other DTCs - SJB REFER to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES article.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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