Other information:
WARNING: Always fully apply the
parking brake and make sure you shift into
park (P). Failure to follow this instruction
could result in personal injury or death.
WARNING: When your vehicle is
stationary, keep the brake pedal fully
pressed when shifting gears...
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
Module
DTC
Description
Action
PCM
P0420:00
Catalyst System Efficiency Below Threshold (Bank 1): No Sub Type Information
GO to Pinpoint Test HF
PC..