AutoCodes - Toyota - P1151 2005 TOYOTA PRIUS

P1151 2005 TOYOTA PRIUS Code - Coolant Heat Storage Tank

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

|P1151 2005 TOYOTA PRIUS code possible causes

  • Coolant heat storage tank

|How do I fix the P1151 2005 TOYOTA PRIUS 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.

|Cost of diagnosing the P1151 2005 TOYOTA PRIUS code

Labor: 1.0

The cost of diagnosing the P1151 2005 TOYOTA PRIUS 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.

|What are P1151 2005 TOYOTA PRIUS code possible symptoms?

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

|P1151 2005 TOYOTA PRIUS code description

This system uses an electric pump to supply hot coolant stored in the coolant heat storage (CHS) tank into the cylinder head of the engine, in order to optimize engine starting combustion and reduce the amount of unburned gas that is discharged while the engine is started. Before the engine starts, the ECM operates the electric water pump to direct the hot coolant in the CHS tank into the engine, in order to heat the cylinder head (this process is called "preheat mode"). The duration of the operation of the electric water pump is variable, depending on the temperature of the cylinder head. During normal operation of the engine, the water valve opens the passage between the cylinder head and the heater and closes the passage between the cylinder head and the tank. During the preheat mode in which the cylinder head is heated, the water valve opens the passage between the tank and the cylinder head, in order to allow the coolant to flow from the tank to the cylinder head. At this time, in order to warm up the intake port quickly before the engine is started, the coolant flows in the reverse direction.
OBDII Code P1151 2005 Toyota Prius - Coolant Heat Storage Tank - AutoCodes.com

|Need more information with the P1151 2005 TOYOTA PRIUS code?

Need more information on how to fix the P1151 2005 TOYOTA PRIUS code? Get Access to Factory Service Manuals

|Need help with a P1151 2005 TOYOTA PRIUS code?

Get the P1151 2005 Toyota Prius code diagnosed by a professional: Find a repair shop in your area

|P1151 2005 TOYOTA PRIUS code comments

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Repair Importance Level: 3
 
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