Friday, December 30, 2011

Diagnostic Code P0540 continue to return and the MIL light is on?

This problem is noticed on
United States Chevrolet Silverado 2500 4X4 of year 2007 with  Engine: 6.6 Diesel model.

Car diagnostic code P0540 is related to Intake Air heat code.
In this case The  has been replaced.As you mentioned that this code comes up again,this clears that you have replace this module.If you have not replaced this intake air heater module then replace it.But if you have already replaced intake air heater module then , in that case check the resistance of the intake air heater on the passenger front top of the engine . This is the square shaped device with the battery cables on the top right side of the engine. Behind it goes to the top of the EGR valve.
Resistance of the intake air heater will be very low considering a 125 amp fuse feeds it.It will be better to test for resistance over the two parts and see if it is open.
What condition is the wiring in the small plug, and the terminals in that plug to plug into the intake air heater?
Test those back to the ECM? If any connection is loose or shorted then it can be the issue.

Also other thing to be checked is 125 amp mega fuse under the black box on the firewall behind the passenger side battery? Check If that fuse open?If yes then replace it.

Checking inspecting this possibilities will help you.

See below list of more car diagnostic error code solution  :-----

Evaporative Emissions System codes details?



Engine Misfire codes on Chevrolet Malibu?

Misfire on cylinder 4?

ABS trouble codes for all 1994-00 Acura models?

Diagnostic code P0010?


Diagnostic Code P1396?

Code P0452?

OBD code P0172 on Buick Park Avenue?

DTC Code P0321 on Buick Park Avenue?

Error Code P0471 on 2007 Dodge Ram 3500?

P0304 Error code on Dodge Neon?

OBDII scan is receiving NO BUS CODE?

How to Clear OBD error Codes on Acura Car Models?

Diagnosis and Testing Car Components?

Diagnostic Trouble Codes list for Acura Car Models?

Part 1.

Diagnostic Trouble Codes list for Acura Car Models?

Part 2.

Diagnostic Code 43 and 71 on 1991 Toyota Pickup?

Code P0132 On Acura TL?

P0031 code on Dodge Dakota?

How to get diagnostic Code without OBD Scanner on Pre 1995 Toyota Pickup?

OBD-II Trouble Code P0300?

Getting diagnostic code P0016?

How to Read Codes from Check Engine Light?


No comments:

Post a Comment