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Dave Nova
Dave Nova, Pontiac Technician
Category: Pontiac
Satisfied Customers: 18859
Experience:  ASE Master Certification. GM World Class Certification
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Pontiac Torrent i just got into my car and my reduced engine

Customer Question

i just got into my car and my reduced engine light came on and i had no acceleration or power to my 2006 pontiac torrent
Submitted: 3 years ago.
Category: Pontiac
Expert:  Dave Nova replied 3 years ago.

Hello and welcome to justanswer.

 

This problem is fairly common and can be caused by a poor connection in the vehicle harness. I have included the details below in a technical service bulletin. Please let me know if you have additional questions.

 

Bulletin No.: 03-08-45-003D

Date: February 24, 2006

TECHNICAL

Subject:
Reduced Power, Stuck in High Gear, SES Light On, DTCs P0223, P0504, P0700, P1228, P1271, P1280, P1599, P1779, P1791, P2119, P2101, P2128, P2135, or P2138 Set, Speaker Buzz Noise, HVAC Inoperative (Inspect/Replace Corroded or Bent Terminals)

 

Models:
2005-2006 Chevrolet Equinox
2006 Pontiac Torrent
2002-2003 Saturn VUE

 

Supercede:

This bulletin is being revised to update an illustration. Please discard Corporate Bulletin Number 03-08-45-003C (Section 08 - Body and Accessories).

Condition

Some customers may comment that the vehicle is exhibiting one or more of the following conditions:

^Reduced power

 

^Transaxle not down shifting

 

^SES light on

 

^Buzz noise from door speaker(s)

 

^Speaker(s) inoperative

 

^HVAC blower motor inoperative

 

^A/C compressor commanded OFF with vehicle speed (evaporator temperature sensor circuit 719 and/or 731 may be open)

 

These conditions may be intermittent. Diagnostic Trouble Codes (DTC) P0223, P0504, P0700, P1228, P1271, P1280, P1599, P1779, P1791, P2119, P2101, P2128, P2135, or P2138 may also be present.

Cause

The instrument panel/body inline connector (black 40-pin electrical connector), located behind the left hinge pillar garnish molding, may have bent or corroded terminals.

Correction

Disconnect and inspect the instrument panel/body inline connector (black 40-pin electrical connector). If necessary, replace damaged terminals and apply dielectric grease to the connector.

 

graphic

 

1.Starting at the left hinge pillar garnish, pull upward to disengage the attaching clips.

 

2.Reach under the instrument panel and pull upwards to disengage the additional clips and remove the molding from the vehicle.

 

 

 

graphic

 

 

3.Disconnect the instrument panel/body inline connector (black 40-pin electrical connector).

 

4.Inspect the connector for bent or corroded terminals.

 

Important: If no corrosion or bent terminals are found, proceed to Step 7 and follow trouble code diagnostics in the service manual or SI.

 

5.Remove any bent or corroded pins from the connector.

 

6.Install the new terminal cut lead (verify correct size using connector/harness face views and electrical schematics in the appropriate service manual or SI).

 

7.Pack the connector terminals with dielectric grease in order to prevent any further corrosion.

 

8.Connect the instrument panel/body inline connector (black 40-pin electrical connector).

 

9.Install the molding.
Customer: replied 3 years ago.
a bunch of water apered on my passenger floor board smells like warter could it be a part of this problem
Expert:  Dave Nova replied 3 years ago.

Yes, this could very well be part of the problem. This connector is not sealed and water coming into the vehicle can get into the connector and cause a bad connection. There is an additonal bulletin that basically says the same thing the first one did, but is more general in nature. I do believe this is your problem. You will need to repair the connector and then find out where the water is leaking into the vehicle.

 

Bulletin No.: 07-06-04-019D

Date: June 28, 2010

Subject: Intermittent Malfunction Indicator Lamp (MIL) Illuminated, DTC P2138 with Reduced Engine Power (Repair Instrument Panel (IP) to Body Harness Connector)

Models:
2005-2011 GM Passenger Cars and Light Duty Trucks (Including Saturn)
2005-2009 HUMMER H2
2006-2010 HUMMER H3
2005-2009 Saab 9-7X

 

Supercede:
This bulletin is being revised to update the model years and warranty information. Please discard Corporate Bulletin Number 07-06-04-019C (Section 06 - Engine/Propulsion System)

 

Condition

-Some customers may comment on an intermittent malfunction indicator lamp (MIL) being Illuminated with a message or an indicator that displays Reduced Engine Power.
-The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP) Sensor 1-2 Correlation set as Current or in History.

 

Cause

This condition may be caused by water intrusion into the instrument panel (IP) to body harness connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value for more than a calibrated period of time, setting P2138.

Correction

Note
Aftermarket equipment can generate DTC P2138 and/or other DTCs.

 

1.Verify that aftermarket equipment is not electrically connected to any of the APP sensor signal or low reference circuits or to any other ECM/PCM 5V reference or low reference circuits. Refer to Checking Aftermarket Accessories in SI.
2.Perform the Diagnostic System Check - Vehicle.

 

¤If any 5V reference DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle.
¤If any 5V reference DTCs are not set, proceed to Step 3.

 

3.Locate the IP to body harness connector, which may be located in and around the left hand kick panel area or inside the IP. Depending on the vehicle and model year, refer to Wiring Systems or Power and Signal Distribution in SI.

 

Note
Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if equipped) and windshield/cowl sealing.

 

4.Inspect for a water leak in the area. If necessary use a water hose to determine the source of the leak. Refer to General Information > Water Leaks in SI.

 

¤If a water leak is observed, repair as necessary. Verify the effectiveness of the repair.

 

5.Inspect the IP to body harness connector terminals for corrosion and debris. Refer to Testing for Intermittent Conditions and Poor Connections in SI.

 

¤If any corrosion and/or debris is observed, repair as necessary.

 

6.After completing the repair, verify the proper operation of the system. Depending on the vehicle and model year, perform the Diagnostic Repair Verification procedure or refer to Diagnostic Trouble Code (DTC) List - Vehicle in SI.

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