Question about 2001 Toyota Sequoia

Open Question

Have three codes on my 2002 sequoia p0128,p0505,p1126 how can i

P0128 is coolant thermostat problem Question 1: if i change the thermostat will that fix that problem?.............

p0505 is Idle air contro system fault Question 2: where is this located and how do i fix it ?............

p126 is magnetic clutch circuit fault Question 3: is the same where is it located and what and how can i fix it ?..................


Posted by on

Ad

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1861 Answers

SOURCE: 06 Corolla Pressure Control Solenoid D Electrical Fault

There is a technical service bulletin to correct this condition. Replacement of the car's Electronic Control Unit (the computer) will cure this. Take it to a Toyota dealer and have them replace it for free.

Posted on Jun 09, 2009

Ad
  • 1861 Answers

SOURCE: 2004 Sequoia. VSC TRAC, TRAC OFF, and Check

It is not hard to change the sensor, it just screws into a threaded hole. The light will not go out immeditaly, after the sensor is replaced. It needs to go thru a drive cycle. Your best bet is to replace the sensor and get the code cleard by whoever scanned it for the 0031 code.

Posted on Jul 23, 2009

duane_wong
  • 6826 Answers

SOURCE: 2001 Toyota Sequoia is showing a P0505 and PO420

P0505 Idle Control System Malfunction

IACV or Idle Air Control Valve if equipped is malfunctioning.

P0420 Catalyst System Efficiency Below Threshold (Bank #1)
The Catalytic converter is not working up to par in Bank#1.

I think this will point you in the right direction..



Posted on Jul 16, 2010

SOURCE: air fuel sensor heater circuit

air fuel sensor heater circuit response malfuction

Posted on Oct 09, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2000 altima p1126 code


Here's a link Eric on your P1126 code,says your coolant is not getting hot enough,which could mean your thermostat is staying open and not letting your coolant build up heat. P1126 2001 Nissan Altima Thermostat Function Here's another on replacing your thermostat. SAVE 20 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

Feb 24, 2016 | Cars & Trucks

2 Answers

Location of throttle control motor relay


Replace the coolant thermostat. The code is different on a Nissan and actually refers to a thermostat fault. Replace the thermostat and clear the codes, you're fixed

Mar 03, 2015 | 2000 Nissan Altima

1 Answer

Error code P0128


Trouble Code: P0128

Thermostat Range/Performance

Trouble Code Conditions: DTC P0107, P0108, P0112, P0113, P0116-118, P0335, P0336, P0300-P0306, P0401, P0505, P1106-P1108, P1259 and P1519, engine running at road load for 10 minutes, and the PCM detected the ECT sensor input did not reach the correct closed loop value. Note: It is possible for this code to set if the engine is left running while the hood is open for an extended period in a warm climate.

Possible Causes:


Inspect for low coolant level or for an incorrect coolant mixtureCheck the operation of the thermostat (it may be stuck open)TSB 01-064 (9/11/01) contains a repair procedure for this code

Jan 27, 2013 | 2001 Honda Civic 1.7

1 Answer

2003 Cadillac CTS at 225,000 miles Code P0128 comes up periodically. Any solution other than a thermostat change at $400 plus?


First off who ever said $400 to change a thermostat is trying to rip you off. The actual part is like $20 bucks max and its so easy to change. I can guide you through it if you would like.

The P0128 code is Coolant Thermostat Malfunction.

These are the possible causes for this code:
- Insufficient warm up time.
- Low engine coolant level.
- Leaking or stuck open thermostat.
- Malfunctioning engine coolant temperature sensor.

These are the possible quick fixes:
- Top OFF Engine Coolant
- Replaced Thermostat

Jan 15, 2011 | 2003 Cadillac CTS

1 Answer

Error code po128


P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.

Symptoms: You will likely not notice any drivability problems other than the MIL illumination.

Causes: A code P0128 may mean that one or more of the following has happened:
* Low engine coolant level
* Leaking or stuck open thermostat
* Faulty cooling fan (running too much)
* Faulty coolant temperature (ECT) sensor
* Faulty intake air temperature (IAT) sensor

Possible Solutions: Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:
* Verify coolant strength & level
* Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
* Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
* Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
* If the above items check out good, replace the thermostat
* If Nissan vehicle, check for Technical Service Bulletins (TSBs), as the ECM may need to be reprogrammed to correct the P0128 code


Hope helps (remember to rate this answer).

Jan 07, 2011 | 2002 Chevrolet Venture Passanger

2 Answers

I am getting P0128 obd code for my nissan sentra. how to solve this



Take note of the blurb regarding NISSAN products below


A code P0128 may mean that one or more of the following has happened:

Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:

  • Verify coolant strength & level
  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat
  • If Nissan vehicle, check for Technical Service Bulletins (TSBs), as the ECM may need to be reprogrammed to correct the P0128 code

Nov 17, 2010 | 2002 Nissan Sentra

1 Answer

Montana o2 sensor code P0128


no it isn't !
low coolant
defective thermostat
defective cooling fan ( staying on too long)
faulty ECT sensor and/or IAT sensor

Jul 05, 2010 | 2002 Pontiac Montana

3 Answers

What can keep causing Check engine code P0128


CODE P0128- THERMOSTAT MALFUNCTION. POSSIBLE CAUSES 1. ECT SENSOR IS OUT OF CALIBRATION. 2. CHECK THE OPERATION OF THE THERMOSTAT IT MAY BE STUCK OPEN.3.INSPECT FOR LOW COOLANT LEVEL OR FOR AN INCORRECT COOLANT MIXTURE.

Jan 06, 2010 | 2004 Kia Spectra

1 Answer

Check light on Chevy Malibu 2002


P0128 - Coolant Thermostat Below Thermostat Regulating Temperature
REPLACE THE THERMOSTAT THE ENGINE IS NOT REACHING CORRECT OPERATING TEMPERATURE, 190-195 DEGREE'S FAHRENHEIT.

Feb 17, 2009 | 2002 Chevrolet Malibu

Not finding what you are looking for?
2001 Toyota Sequoia Logo

Related Topics:

428 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8589 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...