P1288 - Cylinder Head Temp Sensor Out Of Self Test Range

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P1288 Possible Causes

  • Wrong thermostat
  • Engine overheated
  • Low engine coolant level
  • Faulty Cylinder Head Temperature (CHT) sensor
  • Cylinder Head Temperature (CHT) sensor harness is open or shorted
  • Cylinder Head Temperature (CHT) sensor circuit poor electrical connection

How do I fix code P1288

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1288 code

    Labor: 1.0

    The cost of diagnosing the P1288 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1288 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1288 Meaning

The Cylinder Head Temperature (CHT) Sensor is mounted into the wall of the cylinder head and is not connected to any coolant passages. The CHT sends a signal to the Powertrain Control Module (PCM) indicating the cylinder head temperature. If the temperature exceeds 126°C (-258°F), the PCM disables four fuel injectors at a time. The PCM will alternate which four injectors are disabled every 32 engine cycles. The four cylinders that are not being fuel injected act as air pumps to aid in cooling the engine. If the temperature exceeds 154 °C (310°F), the PCM disables all of the fuel injectors until the engine temperature drops below 154°C (310°F).
OBDII Code P1288 - Cylinder Head Temp Sensor Out Of Self Test Range - Engine-Codes.com

P1288 More Information

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P1288 Information for specific makes

  • P1288 ACURA Rocker Arm Oil Pressure Switch Circuit Low Voltage
  • P1288 AUDI Turbocharger Bypass Valve short to B+
  • P1288 BMW Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal Low
  • P1288 BUICK Accelerator Pedal Position Sensor 3 Circuit High Voltage
  • P1288 CADILLAC Accelerator Pedal Position Sensor 3 Circuit High Voltage
  • P1288 CHEVROLET Accelerator Pedal Position Sensor 3 Circuit High Voltage
  • P1288 CHRYSLER Short Runner Valve Circuit Condition
  • P1288 DODGE Short Runner Valve Circuit Condition
  • P1288 FORD Cylinder Head Temperature Sensor Out of Self-Test Range   
  • P1288 GMC Accelerator Pedal Position Sensor 3 Circuit High Voltage
  • P1288 HONDA Rocker Arm Oil Pressure Switch Circuit Low Voltage
  • P1288 INFINITI Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 2
  • P1288 JEEP Short Runner Valve Circuit Condition
  • P1288 LINCOLN Cylinder Head Temperature Sensor Out of Self-Test Range
  • P1288 MAZDA Cylinder Head Temperature Sensor Out of Self-Test Range
  • P1288 MERCURY Cylinder Head Temperature Sensor Out of Self-Test Range
  • P1288 MINI Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal Low
  • P1288 NISSAN Air Fuel Ratio Sensor 1 Circuit Slow Response Bank 2
  • P1288 VOLKSWAGEN Turbocharger Bypass Valve short to B+

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