Question about 2003 Chevrolet TrailBlazer

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Service engine soon light - Diagnostic codes P1481, P1482

I need to know the definitions of OBD II codes P1481, P1482 for 2003 Trailblazer. I just replaced the fan clutch, and am now getting these codes.

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  • Kokoko22 May 02, 2009

    Code 1481..... Engine soon light on, RPH high, fan clutch, water pump and fuel filter recently installed. Wasting too much fuel.......



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Read this. Fan.

Posted on Dec 18, 2008


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Code p1484

Help with a P1484 [Archive] - Chevy TrailBlazer, TrailBlazer SS ... > ... > 02-09 Vortec 4.2L I-6 Engine and Drivetrain

Jun 6, 2005 - 11 posts - ‎4 authors
Took the truck to Autozone and had the code read. The truck code came back as aP1484. Something dealing with the fan. Any help greatly ... Bad fan clutch?
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19179140 P1481 p1484 fault codes? - No-IP

Dec 28, 2015 | Cars & Trucks

1 Answer

Whats ford windstar error codes p0715 mean

I hope this helps and is what your looking for... good luck

Ford P0715 OBD-II Trouble Code Definition:
P0715 Input Shaft Speed Sensor Circuit Malfunction
P0715 Ford OBD-II Trouble CodeDescription:
OBD Trouble Code P0715 Input/Turbine Speed Sensor "A" Circuit What does the code mean? OBD-ii Code P0715 definition:
The input speed sensor detects the primary pulley revolution speed and sends a signal to the Transmission Control Module (TCM) and Engine Control Module (ECM). Symptoms Sumptoms of OBD code P0715
- Engine Light ON (or Service Engine Soon Warning Light) - Possible shifting problems Causes Causes of the OBD-II code P0715
- Transmission speed sensor circuit is open or shorted. - Poor transmission speed sensor circuit connection - Faulty transmission speed sensor The Error code is generally activated on detection of the following conditions: Diagnostic Trouble Code (DTC) P0715 is detected when TCM or ECM does not receive the proper signal from the sensor. Solutions

Jun 22, 2014 | 1999 Ford Windstar

1 Answer


P1481 definition is coolant fan speed,The wire on this sensor tends to chaff through the plastic it is routed through,this is very common, the fix is to replace thhe harness remove the harness from the plastic guide,and repair for opens, or chaff,

Dec 09, 2012 | Cars & Trucks

1 Answer

2003 chevrolet trailblazer 4.2 problem code p1481

See attached picture for location of temp. sensor, but that code has nothing to do with temp sensor. The speed of the fan does not agree with the commanded speed, you may have another bad fan clutch.


Oct 04, 2012 | 2002 Chevrolet TrailBlazer

1 Answer

2002 trailblazer 4wheel - scan code p1484/p1481. Spent days researching these 2 codes on many web sites and forums> cooling fan speed signal lost only sometimes mostly in city not freeway. The car is...

Sounds like the fan clutch is going bad, these had a reputation for failing. The fan clutch is controlled by the computer and if the fan speed does not match what the computer has set, an error code is set. A fan clutch costs in the area of $120 - $200, and the labor to replace it is probably another equal amount.

Jul 07, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

Service engine light came on and we put in on a computer and it gave the code p1481 what does this mean

This is almost always the fan clutch. Years 2002-2004 are prone to fan clutch failure. Also a good idea to check out the harness for any frayed wiring.

Feb 06, 2011 | 2003 Chevrolet Trailblazer Ext

1 Answer

Service engine soon light on

take to autozone have them scan it with an obd II scanner. will give you codes definition of codes and possible problems causing codes. repost codes on here for further assistance.

Jan 01, 2011 | 2003 Chevrolet TrailBlazer

2 Answers

Does the 2003 trailblazer have a on board diagnostic system? if so how do i activate it

yes, it's always active. A light will come on when it detects a fault. You can also use a good scanner to interrogate the system, actuate valves, etc.

Please see my tip at and let me know if you have questions.

Sep 24, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

What has to be done to turn off sevice engine soon light ? THIS IS ON A 2003 CHEVY TRAILBLAZER.

You can buy a hand scan tool and turn it off. If you can't get a scan tool, you can remove one of the battery cables and wait for 10 mins before hooking it back up. But keep in mind that you need to reset the radio and clock

Jul 25, 2010 | 2003 Chevrolet TrailBlazer

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