Diagnostic Routine N

2012 Ford Explorer AWD V6-3.5LSECTION Diagnostic Routine N



Diagnostic Routine N

Diagnostic Overview

U0300:55

Normal Operation and Fault Conditions

REFER to Adaptive Cruise Control (ACC) Operation .

The C-CM (Cruise-Control Module) can be aligned both vertically and horizontally. The vertical alignment is a manual procedure carried out by adjusting the C-CM (Cruise-Control Module) adjustment screw. The horizontal alignment is a software procedure that is carried out internal to the C-CM (Cruise-Control Module).

DTC Fault Trigger Conditions






Pinpoint Test

1. INSPECT THE C-CM (Cruise-Control Module) BRACKET

1. Inspect for damage to the C-CM (Cruise-Control Module) bracket.

Is the C-CM (Cruise-Control Module) bracket damaged?








2. CARRY OUT THE VERTICAL AND HORIZONTAL ALIGNMENT

1. NOTE: Remove the front bumper cover to carry out the vertical alignment procedure.
Carry out the C-CM (Cruise-Control Module) alignment. REFER to Cruise Control Module (C-CM) (with Sensor) Adjustment .

Does the C-CM (Cruise-Control Module) align correctly?







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:

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