Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
SECTION 2: Diagnostic Methods
Table of Contents
Contents PAGE
Diagnostic Methods ...................................................................................................................................................................... 2-2
Overview ................................................................................................................................................................................. 2-2
Diagnostic Tools ........................................................................................................................................................................... 2-3 Scan Tool Setup And Functionality ............................................................................................................................................... 2-4 Vehicle Check And Preparation .................................................................................................................................................... 2-5
Visual Checks ......................................................................................................................................................................... 2-5 Vehicle Preparation ................................................................................................................................................................ 2-5
Quick Test Description .................................................................................................................................................................. 2-6
Quick Test ............................................................................................................................................................................... 2-6 Key ON Engine OFF (KOEO) On Demand Self-Test ............................................................................................................. 2-6 Key ON Engine Running (KOER) On Demand Self-Test ....................................................................................................... 2-6 Continuous Memory Self-Test ................................................................................................................................................ 2-6
Clear The Continuous Diagnostic Trouble Codes (DTCs) And Reset The Emission Monitors Information In The Powertrain Control Module (PCM) ............................................................................................................................................................................... 2-8 Resetting The Keep Alive Memory (KAM) .................................................................................................................................... 2-9 On Board System Readiness (OSR) Test .................................................................................................................................. 2-10 Output State Control (OSC) ........................................................................................................................................................ 2-11 Parameter Identification (PID) ..................................................................................................................................................... 2-12 Freeze Frame Data ..................................................................................................................................................................... 2-21
OBDII Freeze Frame Data .................................................................................................................................................... 2-21
Flash Electrically Erasable Programmable Read Only Memory (EEPROM) .............................................................................. 2-25
Neutral Profile Correction ..................................................................................................................................................... 2-25
Diagnostic Monitoring Test Results Mode 6 ............................................................................................................................... 2-27 On Board Diagnostic (OBD) Drive Cycle .................................................................................................................................... 2-28 Intermittent Diagnostic Techniques ............................................................................................................................................. 2-30
Recreating the Fault ............................................................................................................................................................. 2-30 Accumulating PCM Data ....................................................................................................................................................... 2-30 Peripheral Inputs ................................................................................................................................................................... 2-30 Comparing PCM Data ........................................................................................................................................................... 2-30
Adaptive Fuel Diagnostic Trouble Code (DTC) Diagnostic Techniques ..................................................................................... 2-32
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.