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 |
PCM | P0430:00 | Catalyst System Efficiency Below Threshold (Bank 2): No Sub Type Information | GO to Pinpoint Test HF |
Global Customer Symptom Code (GCSC) 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).
Symptom | Action |
---|---|
Start/Run/Move > Running > Failed Emissions Testing > Catalyst | GO to Pinpoint Test EM |
Start/Run/Move > Odor > Chemical > Always | GO to Pinpoint Test HF |
Pinpoint Tests
![]() NOTE: Canada and some states or metropolitan areas in the United States require periodic emission, or inspection/maintenance tests. All Ford products are designed to pass these tests. If a Ford product fails the test, the most likely causes are:
Normal Operation and Fault Conditions If any new emission components are installed, carry out the following steps before repeating the inspection/maintenance test procedure:
![]() Verifying an excessive grams per mile (gpm) indication using a parts per million (ppm) reading. For excessive vehicle gas readings, compare the actual gpm reading to the gas cutpoint level needed to pass testing. This gives an indication of how much the ppm reading has to be reduced (if the actual reading is twice the cutpoint, the baseline reading has to be cut in half or more). Example:
Possible Sources
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![]() Normal Operation and Fault Conditions Refer to the DTC Fault Trigger Conditions. DTC Fault Trigger Conditions
Possible Sources
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What Is the Master Access Code
The master access code is a factory-set five-digit entry code. You can operate the keypad with the master access code at any time. The master access code is on the owner’s wallet card in the glove box and is available from an authorized dealer.
Displaying the Master Access Code
To display the factory-set code in the information display: