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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Engine Controls - Powertrain DTC Charts & Description (Except Diesel & Hybrid)) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC P1288: Cylinder Head Temperature (CHT) Sensor Out of Self-Test Range

DTC P1288: Cylinder Head Temperature (CHT) Sensor Out of Self-Test Range

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P1288 - CYLINDER HEAD TEMPERATURE (CHT) SENSOR OUT OF SELF-TEST RANGE

Description:  Indicates the CHT sensor is out of self-test range. The engine is not at a normal operating temperature.
Possible Causes: 
  • Cold engine
  • Engine overheating
  • Damaged harness connector
  • Damaged powertrain control module (PCM)
  • Low engine coolant level
  • Damaged CHT sensor
Diagnostic Aids:  Bring the engine to operating temperature. If cold, repeat the self-test. If the engine overheats, check the cooling system.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to DL: Cylinder Head Temperature (CHT) Sensor STEP DL1.