Question about 2004 Chevrolet Impala

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Error code 0481?

I have the same thing how did you fix it?

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Change the fan relay!

Posted on Sep 23, 2009

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Posted on Jan 02, 2017

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I have 2000 impala.. Code 0481 I've replaced the relay even though both fans turn on fine. I also swapped the plugs to see if I would get a fan 1 code and still got 0481. Any ideas?


DTC P0481Cooling Fan Relay 2 Control Circuit .
You swaped what plugs ? Fan's ? That wouldn't change anything ! You need to know how these duel fan set up's work . With this code the fans will still work in low speed , not high !
Output driver modules (ODMs) are used by the PCM to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding ON. Unlike the quad driver modules (QDMs) used in prior model years, ODMs have the capability of diagnosing each output circuit individually. If an improper voltage level has been detected on ODM B output 2, which controls the high speed, relay 2, and series/parallel cooling fan relays, DTC P0481 will set.
Do you know how to do automotive electrical testing ?
Diagnostic Aids
Check for the following conditions:
• Poor connection at PCM -- Inspect harness connectors for the following items:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal to wire connections
• Damaged harness -- Inspect the wiring harness for damage.
• If the harness appears to be OK, disconnect the PCM, turn ON the ignition and observe a digital multimeter connected between the Fan Relay 2 driver circuit and ground at the PCM harness connector while moving connectors and wiring harnesses related to the series/parallel fan relay and the high speed fan relay. A change in voltage will indicate the location of the fault.
If the DTC cannot be duplicated and is determined to be intermittent, reviewing the Failure Records can be useful in determining when the DTC was last set. Also refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.


Relay Driven Dual Cooling Fan Diagnostics

Apr 24, 2017 | Cars & Trucks

1 Answer

How to fix code 1598 2001 dodge stratus


The link below shows Dodge error codes:
https://www.engine-light-help.com/dodge-check-engine-light.html

Your error code indicates A/C Pressure Sensor Voltage Too High.

It probably is due to either a short or grounding of a wire/switch/sensor. Do the things you can do yourself - check all earth wires around the ac unit. Clean and tighten them.

If your ac works fine, ignore the code.
If not - don't waste time and money changing bits in an attempt to solve the problem. Visit a workshop

Feb 25, 2016 | 2001 Dodge Stratus

1 Answer

Astra fault codes 0480 and 0481. any help please? please read down there V V


It is your immobilizer system, program a new key and let me know what happens.

Nov 23, 2013 | Cars & Trucks

1 Answer

2000 chev malibu 3.1 keeps displaying code 0481


How to fix it depends on what the problem is.
Code 481 is for a problem with the cooling fan circuit.
There are several components that make the cooling fan run on demand. The code means the computer did not get the expected reaction when it turned on the fan relay.
So the fan circuit and components would need to be tested.

Feb 15, 2013 | Cars & Trucks

1 Answer

Code P0481 on a 2003 chevy venture can it cause Oxygen Sensors to be off


code p 0481 refers to coolant temp fans --circuit malfunction===causes-- wiring--- , fan--ECM
fix the fan not working --fuses wiring fan motor
codes p 0132 and 137 and p 0141 refer to the heated oxygen sensors in the exhaust manifolds , both banks before the cat converters
replace those sensors and it will fix those codes

Jul 23, 2017 | Cars & Trucks

1 Answer

Code c-14 for toyota electric pallet jack


toyato pallet jack electric , DISCUSSION FORUM - Forkliftaction.com

www.forkliftaction.com/forum/thread.asp?trid=15922

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Code c-14 for toyota electric pallet jack - Fixya

www.fixya.com/cars/t12123378-code_c_14_toyota_electric_pallet_jack
Mar 22, 2012 - I have code c-14,try to fix it ... Hi Danny: One of the things that I do is to try to help resolve the problem, and that does not always mean answering ...

Mar 22, 2012 | Hoisting

1 Answer

Error Code


p0605 reffers to a pcm read only memory (rom) error...Not likey a good thing..I would take it back to where it was serviced. At times unplugging the scanner while the vehicle is running and scanne in the middle of a test can cause that light to come back with that code. For sure return to service facility and get them to fix it.....

Aug 07, 2008 | 2001 Chrysler Town & Country

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