jQuery not supported.



TSB #11-06-04-007B - Reduced Engine Power DTC P2135 NNBS

Diagnosis and Repair - Reduced Engine Power DTC P2135
Forum rules
This is NOT the place to post topics that could be better classified in another category. Please make every attempt to post in an appropriate category before posting here.

TSB #11-06-04-007B - Reduced Engine Power DTC P2135 NNBS

Postby Machster69 [OP] » Jan 08 2013, 6:06pm

Open PDF for Full TSB and PICS
Attachments
TPS11-06-04-0007B.pdf
(1.89 MiB) Downloaded 1983 times
Last edited by Machster69 on Jan 08 2013, 6:09pm, edited 1 time in total.
Original Poster
Machster69
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 7961
Topics: 103
Images: 79
Blogs: 8
Joined: Feb 16 2012, 3:03pm
Years of membership: 2 years of membership2 years of membership
Location: Baton Rouge
Year: 2010
Make/Model: GMC Sierra
Extra Info: 5.3 SLE 2wd
Group Membership:
How-to Authors
SilveradoSierra Guru
Registered users
Related Topics  Reduced Engine Power comes on   Engine Power Is Reduced..   Reduced Engine power mode   engine power reduced sierra`07 , HELP!!   Reduced Engine Power/ Service Stablitrak   Reduced Engine Power - code u0107 - help   Stabiltrack, traction, reduced engine power, rough idle   No Check Engine Light or DTC's   2003 GMC Reduced Brake Power Message   P2135   p2135 - Code (TP)   2014 vs NNBS 5.3 power   2009 1500 - StabiliTrak & Code P2135   TSB's under warranty... 
Uncategorized Truck Topics Sponsor
Advertise Here

Re: #11-06-04-007B - Reduced Engine Power DTC P2135 NNBS

Postby Machster69 [OP] » Jan 08 2013, 6:07pm

Here is the text WITHOUT PICS

#11-06-04-007B: Diagnosis and Repair - Malfunction
Indicator Lamp (MIL) Illuminated, Reduced Engine Power
Message Displayed, DTC P2135 Set - (Apr 16, 2012)
Subject: Diagnosis and Repair - Malfunction Indicator Lamp (MIL) Illuminated, Reduced Engine
Power Message Displayed, DTC P2135 Set
Models: 2008-2011 Cadillac Escalade, Escalade ESV, Escalade EXT
2009-2011 Cadillac Escalade Two-Mode Hybrid
2008-2009 Chevrolet TrailBlazer
2008-2011 Chevrolet Avalanche, Colorado, Express, Silverado, Suburban, Tahoe
2008-2011 Chevrolet Tahoe Two-Mode Hybrid
2009-2011 Chevrolet Silverado Two-Mode Hybrid
2008-2009 GMC Envoy
2008-2011 GMC Canyon, Savana, Sierra, Sierra Denali, Yukon, Yukon Denali, Yukon
XL, Yukon XL Denali
2008-2011 GMC Yukon Two-Mode Hybrid
2009-2011 GMC Sierra Two-Mode Hybrid
2008-2009 HUMMER H2
2008-2010 HUMMER H3
Equipped with Engine RPO LFA, LY2, L20, LMG, LC9, LH6, LMF, LH8, LH9, L76, LS2,
LY5, LY6, L92, L96, LZ1, L94 or L9H
Attention: If a vehicle is encountered with this condition, DO NOT replace the throttle
body. Instead follow this procedure below. Model Year 2008-2010 vehicles
MUST have the engine control module (ECM) reprogrammed with the latest
software calibration as indicated in Step35 of the procedure AFTER the
installation of the throttle position (TP) sensor cover. Model Year 2011 vehicles
DO NOT need to have the ECM reprogrammed.
This bulletin is being revised to add California Emission Coverage to the Warranty Information.
Please discard Corporate Bulletin Number 11-06-04-007A (Section 06 – Engine/Propulsion
System).
Condition
Some customers may comment on an illuminated malfunction indicator lamp (MIL), with a Reduced
Engine Power message displayed.
The technician may observe on a scan tool DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set
as Current or in History.
Cause
This condition may be caused by the difference between the TP Sensor 1 and TP Sensor 2 exceeding a
calibrated value for more than 2 seconds.
Correction
Caution: Handle the electronic throttle control components carefully. Use cleanliness in
order to prevent damage. Do not drop the electronic throttle control components. Do not
roughly handle the electronic throttle control components. Do not immerse the electronic
throttle control components in cleaning solvents of any type.

Warning: Approved safety glasses and gloves should be worn when performing this procedure
to reduce the chance of personal injury.
1. With a scan tool, verify that DTC P2135 is set as Current or in History.
⇒ If DTC P2135 is set as Current or in History, proceed to Step 2.
⇒ If DTC P2135 is not set as Current or in History, refer to Diagnostic Trouble Code (DTC) List -
Vehicle or Symptoms - Engine Controls in SI.
2. Turn OFF the ignition.
3. Open the hood.
Important: If at any time during this procedure the throttle body is dropped, abort this
procedure and REPLACE it with a new throttle body assembly.
4. Remove the throttle body and discard the throttle body gasket. Refer to Throttle Body Assembly
Replacement in SI.
5. Remove any loose debris and dirt from the throttle body assembly and the TP sensor cover.
Inspect the throttle body for damage.
Caution Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel
system components.
6. Clean the throttle body bore and the throttle plate using a clean shop towel with GM Top Engine
Cleaner, P/N 1052626 (in Canada, P/N 993026), or AC-Delco Upper Engine and Fuel Injector
Cleaner, P/N X66-P, or an equivalent product.
Caution Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may
damage fuel system components.
Notice DO NOT mount the throttle body in a vise. The throttle body can be set on the top of a soft
protected workbench area.
7. Hold the throttle body with your hand, so that the throttle position (TP) sensor cover is facing
upward as shown.
8. Secure a rubber band around the throttle body and TP sensor cover as shown.
9. Turn over the throttle body and use a flathead screwdriver to remove the two clips (1, 2) as
shown. Discard the clips.
Notice DO NOT PRY ON THE MACHINED SEALING SURFACE OF THE THROTTLE BODY INLET DUCT.
10. Turn over the throttle body and use a flathead screwdriver to remove the four remaining clips
from the TP sensor cover. Discard the clips.
11. Hold the throttle body with your hand, so that the TP sensor cover is facing upward. Grasp the TP
sensor cover and carefully lift it up and separate it from the throttle body.
Notice DO NOT allow the intermediate gear to fall out.
12. Maintain the throttle body in an upward position. Use your thumb to maintain contact with the
intermediate gear.
⇒ If the intermediate gear falls out and impacts a hard workbench surface or the floor, abort this
procedure and REPLACE with a new throttle body assembly.
13. Verify that the TP sensor cover gasket HAS REMAINED in the TP sensor cover as shown. Ensure
that the gasket is accounted for and remains with the old TP sensor cover.
14. Observe the TP sensor cover for missing female throttle actuator motor terminals (1). Verify that
the female throttle actuator motor terminals HAVE REMAINED in the TP sensor cover and HAVE
NOT been retained on the throttle actuator motor male terminals (2). Discard the old TP sensor
cover, gasket and terminals.
⇒ If one or both of the TP sensor cover female throttle actuator motor terminals HAVE BEEN
retained on the throttle actuator motor male terminals (2), remove and discard those female
terminals.
15. Remove the new TP sensor cover from the protective shipping wrapper.
16. Place the TP sensor cover in the position as shown. Confirm the TP sensor drive slot orientation is
aligned in the TP sensor cover as shown.
⇒ If the TP sensor drive slot orientation is not aligned as shown, use a small flathead screwdriver to
gently rotate the TP sensor drive slot clockwise to the wide open throttle (WOT) position as
shown.
17. Verify that the TP sensor cover gasket is secure and properly positioned.
Notice The three TP sensor cover alignment tabs are highlighted in white for identification purposes only.
18. Verify that all three of the TP sensor cover alignment tabs are present and are not damaged.
19. Grasp and hold the throttle body in the previously hand held upward position. Lightly depress the
intermediate gear to verify that it is fully seated and the gears are engaged.
20. Rotate the throttle body plate to the WOT position (1).
21. Position and install the TP sensor cover to the throttle body. Hold the TP sensor cover in position.
If necessary for ease of the clip installation, secure a rubber band around the throttle body and
TP sensor cover.
22. Install the first TP sensor cover clip (1) in the position shown.
23. Install the remaining TP sensor cover clips in the sequence shown.
24. Install a NEW throttle body gasket to the intake manifold.
25. Install the throttle body, bolts and nuts. DO NOT tighten the fasteners yet.
26. Connect the electrical connector to the throttle body.
27. Turn ON the ignition. Clear the DTC with a scan tool.
28. Observe the scan tool TP Sensor 1 and 2 Agree/Disagree parameter while slowly depressing the
accelerator pedal to WOT and then slowly returning the pedal to closed throttle. Repeat the
procedure several times. Rapidly depress the accelerator pedal from the rest position to the wide
open throttle position (WOT) and release pedal. Repeat the procedure several times. The TP
Sensor 1 and 2 Agree/Disagree parameter should display Agree.
⇒ If TP Sensor 1 and 2 Agree/Disagree parameter displays Agree, proceed to Step 29.
⇒ If TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree, replace the throttle body
assembly.
29. Observe the ECM module DTC information. Are DTC P1516, P2101 and/or P2176 set?
⇒ If DTC P1516, P2101 and/or P2176 are set, replace the throttle body.
⇒ If DTC P1516, P2101 and/or P2176 are not set, proceed to Step 30.
30. Tighten the throttle body fasteners.
Tighten
Tighten the fasteners to 10N·m (89lbin).
31. Install any remaining components that were removed during this procedure.
32. Verify the battery voltage is more than 12 volts but less than 16 volts before proceeding with
ECM reprogramming.
33. During reprogramming, the battery voltage must be maintained within the proper range of 12-15
volts. Connect the approved Midtronics® PSC 550 Battery Maintainer (SPS Programming Support
Tool EL-49642) to the vehicle.
⇒ If the above recommended tool is not available, DO NOT connect a battery charger to the vehicle.
Connect a fully charged 12V jumper or booster pack that is disconnected from the AC voltage
supply.
34. Use a Tech 2® or a multiple diagnostic interface (MDI) module for reprogramming. Ensure that
either device is updated with the latest available software version before performing the
reprogramming event.
35. Reprogram the ECM using the Service Programming System (SPS) with the latest calibration
available on TIS2WEB. Refer to the SPS procedures in SI.
36. Perform the Throttle Learn Reset Procedure. Refer to Throttle/Idle Learn > Throttle Learn >
Reset Procedure in SI.
MIDTRONICS is a registered trademark of MIDTRONICS, INC.
Tech 2 is a registered trademark of General Motors LLC
ACDELCO is a registered trademark of General Motors LLC
Part Information
Important: The initial inventory for P/N19259452 (Sensor Kit) will be distributed via RIM through a
special stocking policy. The dealership parts department personnel will need to approve the stocking policy
in order to receive the initial shipment. Subsequent replenishment will also be via RIM. If the parts
department is out of inventory of P/N19259452 (Sensor Kit), then to complete the repair utilize the
throttle body assembly.
Part Number
Description
Quantity
19259452
Throttle Position (TP) Sensor Cover
1
Warranty Information
• For 2008-2009 vehicles repaired under the 5year/100,000mile(160,000km) Powertrain Coverage
(Code P) warranty, use:
• For 2010-2011 Cadillac vehicles repaired under the 4year/50,000mile(80,000km) Bumper-to-
Bumper warranty (in Canada, Base Warranty Coverage), use:
• For 2010-2011 Chevrolet, GMC or HUMMER vehicles repaired under the
3year/36,000mile(60,000km) Bumper-to-Bumper warranty (in Canada, Base Warranty
Coverage), use:
• For 2010-2011 Chevrolet, GMC or HUMMER vehicles repaired under the
3year/50,000mile(80,000km) California Emission Coverage (Code E) warranty, use:
Labor Operation
Description
Labor Time
J7949*
Throttle Position (TP) Sensor Cover Replacement
1.3hrs**
J7949*
Express and Savana Vans
Throttle Position (TP) Sensor Cover Replacement
1.7hrs**
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time
Guide.
**This time includes diagnosis, throttle body removal, cleaning and installation, reprogramming the
ECM, and performing the Throttle Learn / Reset Procedure.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of
conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is
described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer
for information on whether your vehicle may benefit from the information.
© 2012 General Motors. All rights reserved.
Original Poster
Machster69
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 7961
Topics: 103
Images: 79
Blogs: 8
Joined: Feb 16 2012, 3:03pm
Years of membership: 2 years of membership2 years of membership
Location: Baton Rouge
Year: 2010
Make/Model: GMC Sierra
Extra Info: 5.3 SLE 2wd
Group Membership:
How-to Authors
SilveradoSierra Guru
Registered users

Return to Uncategorized Truck Topics

 

  • Similar topics
    Replies
    Views
    Last post

Common search terms

power engine nnbs pics reduced body part both system drive lift first fuel install while dealer

It is currently Aug 02 2014, 5:28am

  • Sponsor
Login  •  Register
SHOP TALK (Live Chat)
Uncategorized Truck Topics Forum
Uncategorized Truck TopicsThis is an all-purpose area for Silverado/Sierra truck related discussion. These forums typically contain truck related but ill-assorted topics unfit for any other category.
To create a new topic in Uncategorized Truck Topics, click this button:
Previous topic Next topic

Who is online

Users browsing this forum: Netseer [Crawler] and 13 guests