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P117B - Exhaust Gas Temperature Sensor Correlation - Bank 1

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P117B - EXHAUST GAS TEMPERATURE SENSOR CORRELATION - BANK 1

Description:  The powertrain control module (PCM) monitors the 4 exhaust gas temperature (EGT) sensors at key ON, engine OFF, following a 6-hour soak to determine if a concern is present. The PCM compares the values of the 4 EGT sensors to verify the sensors correlate to each other. The test fails when the temperature difference at one of the EGT sensors is greater than 50°C (122°F).
Possible Causes: 
  • Corrosion or incorrect harness connection
  • Damaged EGT sensor
Diagnostic Aids:  Monitor the EGT PIDs to determine which one of the 4 sensors does not correlate.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST RC .