How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask JOHN aka Eauto Your Own Question

JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 12953
Experience:  ase tech
6149662
Type Your Chevy Question Here...
JOHN aka Eauto is online now
A new question is answered every 9 seconds

WHAT IS DTC CODE 2610

Customer Question

WHAT IS DTC CODE 2610
Submitted: 5 years ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 5 years ago.
P2610
Notes

DTC P0602, P0606, P060B, P061C, P062C, P062F, or P2610

Diagnostic Instructions



Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Diagnostic System Check - Vehicle
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provide an overview of each diagnostic category.
DTC Descriptors

DTC P0602


Control Module Not Programmed
DTC P0606


Control Module Internal Performance
DTC P060B


Control Module Analog to Digital Performance
DTC P061C


Control Module Engine Speed Performance
DTC P062C


Control Module Vehicle Speed Performance
DTC P062F


Control Module Long Term Memory Performance
DTC P2610


Control Module Ignition Off Timer Performance
Description

These DTCs apply to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses if the ECM is not programmed.

The ECM monitors its ability to read and write to the memory. It also monitors a timing function.

Conditions for Running the DTC

P0602


The ignition switch is ON.
The controller is identified as a service replacement ECM.
P0606


The ignition switch is in Run or Crank.
The power take-off (PTO) is inactive.
The cruise control is inactive.
P060B


The engine speed is more than 650 RPM .
The ECM is powered up.
P061C


The ignition is ON.
The engine speed is less than 1,300 RPM .
P062C

The ignition is ON.

P062F

The ignition is ON.

P2610

The ECM is powered up.

Conditions for Setting the DTC

P0602


The ECM has not been programmed at Key On and Engine Off for 0.1 second .
This diagnostic runs continuously.
P0606


The ECM detects a microprocessor undervoltage or overvoltage condition. OR
The ECM detects an internal bus communication error. OR
The ECM detects an internal clock error. OR
The ECM detects an internal injector control error.
All tests run in less than 1 second .
This DTC runs continuously.
P060B


The ECM detects an incorrect internal analog/digital (A/D) signal for less than 1 second .
This DTC runs continuously.
P061C


The ECM detects that there is a difference between the CKP engine speed and the calculated engine speed of more than 320 RPM for less than 1 second .
This diagnostic runs continuously.
P062C


The ECM detects a fault in the ship that calculates redundant vehicle speed for more than 1 second .
This DTC runs continuously.
P062F


The ECM did not complete the last electronic erasable programmable read only memory (EEPROM) write event during the last ECM power down.
This diagnostic runs once per ignition cycle at power up.
P2610


The ignition off-timer is less than 0 second . OR
The ignition off-timer is less than 5 seconds for more than 10 seconds . OR
The ignition off-timer is unchanged for 60 seconds . OR
The ignition off-timer is not incrementing in 1-second intervals.
Action Taken When the DTC Sets



DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.
Conditions for Clearing the MIL/DTC



DTCs P0602, P0606, P060B, P061C, P062C and P062F are Type A DTCs.
DTC P2610 is a Type B DTC.
Circuit/System Testing



Observe the DTCs with the scan tool.
¤ If DTC P0602 or P062F is set, attempt to program the ECM before replacing the ECM. Refer to Service Programming System (SPS). See: Testing and Inspection\Programming and Relearning\Service Programming System (SPS)
¤ If DTC P0606 was set while performing SPS Programming, clear the DTCs and exit the diagnostic.
¤ If DTC P0606 was set with DTC P0851 or P0852, first go to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions\Diagnostic Trouble Code (DTC) List - Vehicle

Test the voltage and ground circuits to the control module for the following:
A short
An open
High resistance
Important: DTC P2610 can be set with a loss of battery voltage to the ECM with the ignition ON. The ignition must be in the OFF position before disconnecting the ECM.



If DTC P2610 is set, turn the ignition OFF and then completely disconnect the ECM harness connector from the ECM for approximately 1 minute . Reinstall all of the ECM connectors and then attempt to clear codes with the scan tool.
¤ If DTC P2610 resets after code clear, replace the ECM.

Replace the ECM.
Repair Instructions


JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 12953
Experience: ase tech
JOHN aka Eauto and 12 other Chevy Specialists are ready to help you
Expert:  GM Tech (Cam) replied 5 years ago.

Hello, I must add more information. THis code is often set because the battery went dead and you tried to start it. There is a calibration update to correct this and it will not require a new ECM. See you dealer for the calibration update.

Expert:  JOHN aka Eauto replied 5 years ago.
did the battery go dead?
Expert:  GM Tech (Cam) replied 5 years ago.

Below is the bulletin that outlines this code and I have dozens of this update and never replaced a ECM for this.

#PIP4403: Control Module Ignition On Timer Performance DTC P2610 - keywords 6.6 cal calibration ECM engine LBZ LLY MIL replace replacement - (May 1, 2008)

Subject:Control Module Ignition On Timer Performance DTC P2610

Models:2006-2007 Chevrolet Express, Kodiak, Silverado
2006-2007 GMC Savana, Sierra, Topkick
Equipped with the 6.6 Diesel Engine RPO codes LBZ or LLY

 


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A dealer may encounter a customer complaint of a check engine light (SES light ON) and a P2610 DTC may be stored in the ECM. This DTC may set intermittently after a reflash of certain modules such as the transmission control module (TCM), or glow plug control module (GPCM). Additionally, any loss of battery voltage to the ECM while the ignition is ON, can also cause a P2610 to set.

Recommendation/Instructions:

If a P2610 has been verified do not replace the ECM. Perform the following steps when encountering a P2610.

Turn the IGNITION OFF for 90 seconds. Unplug both the engine control module (ECM) connectors for 90 seconds. After 90 seconds has passed, re-install the ECM connectors. With the ignition on use the Tech2 and clear all codes in the ECM. This procedure should prevent future sets of the P2610. For 2006 and certain 2007 model vehicles, there may also be a calibration update available which addresses P2610 false sets.

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics