Question about 2003 Chevrolet TrailBlazer

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Change the fan clutch about 2 weeks agos and now im gettin p1481 on my truck can anyone help me

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  • yogi84bear Jun 30, 2009

    so how do i go about checkin to c if it is the computer or pcm

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It sounds like the connection to the clutch or to the computer or your pcm is going bad

Posted on Jun 30, 2009

  • MISTERKRONIC Jun 30, 2009

    sorry the computer and the pcm are the same thing, in most cases it is really hard to check either getting it reprogramed or having it replaced is the only way to see if it fixes it sorry good luck

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Code p1484


Help with a P1484 [Archive] - Chevy TrailBlazer, TrailBlazer SS ...

forums.trailvoy.com > ... > 02-09 Vortec 4.2L I-6 Engine and Drivetrain

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Dec 28, 2015 | Cars & Trucks

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PURCHASED A NEW FAN CLUTCH FROM GMC NOW GET CODE P1481 ON MY 2003 GMC ENVOY SLTTHE CODE COMES AND GOS WHAT SHOULD I DO?


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.




10_5_2012_11_54_58_pm.jpg

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

I replaced the fan clutch and it was fine for like 3 munths now the light is on again im thinking its the ecu its a 03 gmc evoy inline 6. thanks the code is p1481 thanks


There a lot of aftermarket fan clutches out there that just don't hold up. Purchase either a GM part or a Dorman replacement.

Sep 13, 2010 | 2003 GMC Envoy

1 Answer

P1481


Code P1481 - Cooling Fan Speed Sensor Circuit

Several owners repair this sensor and connections, but the problem come on again; I suggest replace the sensor; this is built into the fan clutch.

Hope helps.

Aug 18, 2010 | 2003 GMC Envoy

1 Answer

2003 Trailblazer L6 running very sluggish. The only code the ECU is throwing is a P1481 code which upon some quick searches is the fan clutch. That shouldnt have anything to do with the poor performance...


Code P1481 - Cooling Fan Speed Sensor Circuit

Several owners repair this sensor and connections, but the problem come on again; I suggest replace the sensor; this is built into the fan clutch.

Hope helps.

Jul 09, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

I replace the fan clutch and i still have the code p1481 what does that mean? 2002 chevrolet Trailblazer 4.2 Thanks You! Arthur Tyler


TSB#05-06-02-012B: Service Engine Soon (SES) or Check Engine Light On, DTC P0480, P0526/P1481/P1484 Set (Replace Engine Cooling Fan Wiring Harness) - (Oct 19, 2006)
Subject:
Service Engine Soon (SES) or Check Engine Light On,
DTC P0480/P0526/P1481/P1484 Set (Replace Engine Cooling Fan Wiring Harness)
Condition
Some customers may comment that the Service Engine Soon (SES) or Check Engine light is illuminated. This condition may be intermittent and upon investigation, the technician may find either DTC P0480, P0526, P1481 or P1484 set.

Cause
This condition may be caused by the cooling fan harness chaffing against the plastic guide it routes through. This
contact may damage the insulation of the wires enclosed in that harness.

Correction
Replace the engine cooling fan harness using the procedure listed below.

1. Remove the cooling fan. Refer to the Cooling Fan and Shroud Replacement procedure in the Engine Cooling sub-section of SI.

2. Place the cooling fan assembly on a bench.
Disconnect the harness electrical connector from the cooling fan clutch.

3. Remove the harness from the plastic guide while feeding the wires out of the slot.

4. Before installing the new harness, wrap the affected area on the wires with electrical tape to keep the protective sleeve in place. Be sure to keep the tape approximately 25 mm (1 in) away from the connector so the wires can be fed into the slot.

5. Feed the wires into the slot and install the harness to the plastic guide.

6. Connect the harness electrical connector to the cooling fan clutch.

7. Install the cooling fan. Refer to the Cooling Fan and Shroud Replacement procedure in the Engine Cooling sub-section of SI.

Part Number 89024920

Description
Harness Assembly, Engine Cooling Fan Wiring
Thank you for using fixya.

Apr 29, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

Ticking noise coming from my 2004 envoy


like ticking while idling try unplugging eletric fan clutch harness to see if it goes away if it does replace fan clutch and its called a viscuss clutch fan.

Dec 28, 2008 | 2004 GMC Envoy

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