Generating Readiness Code

2002 Jaguar XJ8 Vanden PlasSECTION Generating Readiness Code
NOTE: Before generating readiness code, perform a long road test. Coolant temperature needs to be greater than 176Β° F (80Β° C). Idle, partial throttle, full throttle and overdrive, all must be attained several times. During test drive, apply full throttle until engine speed exceeds 3500 RPM. Read readiness code. OBD system checks components and generates Readiness Code at regular intervals during normal driving.
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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.