Pinpoint Test Dg: Knock Sensor (KS): Introduction

2009 Lincoln Town Car Signature Limited, 4.6 VSECTION Introduction

This pinpoint test is intended to diagnose the following:

  • knock sensors KS1 and KS2 (12A699)
  • harness circuits: KS1+, KS1-, KS2+, and KS2-
  • powertrain control module (PCM) (12A650)
Fig 1: Knock Sensor 1 (KS1) Connector (1 Of 2)
G06053970Courtesy of FORD MOTOR CO.
RENDER: 1.0x

NO RELATED

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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.