AutoCodes - Toyota - P0128 2002 TOYOTA HIGHLANDER

P0128 2002 TOYOTA HIGHLANDER Code - Coolant Thermostat

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3
Table of contents

|P0128 2002 TOYOTA HIGHLANDER code possible causes

  • Leaking or stuck open thermostat
  • Low engine coolant level
  • Insufficient warm up time
  • Faulty engine coolant temperature sensor
  • Engine coolant temperature sensor harness is open or shorted
  • Engine coolant temperature sensor circuit poor electrical connection

|How do I fix the P0128 2002 TOYOTA HIGHLANDER code?

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.

|P0128 2002 TOYOTA HIGHLANDER code tech notes

If cooling system is not leaking and the fluid level is OK, replacing the thermostat usually takes care of the problem.

|Cost of diagnosing the P0128 2002 TOYOTA HIGHLANDER code

Labor: 1.0

The cost of diagnosing the P0128 2002 TOYOTA HIGHLANDER code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0128 2002 TOYOTA HIGHLANDER code detected?

The engine coolant temperature does not reach to specified temperature even though the engine has run long enough.

|What are P0128 2002 TOYOTA HIGHLANDER code possible symptoms?

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

|P0128 2002 TOYOTA HIGHLANDER code description

Coolant temperature below thermostat regulating temperature. Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine.
OBDII Code P0128 2002 Toyota Highlander - Coolant Thermostat - AutoCodes.com

|Need more information with the P0128 2002 TOYOTA HIGHLANDER code?

Need more information on how to fix the P0128 2002 TOYOTA HIGHLANDER code? Get Access to Factory Service Manuals

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|P0128 2002 TOYOTA HIGHLANDER code comments

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Repair Importance Level: 3
 
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