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GMC Yukon and Yukon Denali Problems

1091 messages,  Last post on Mar 27, 2013 at 1:10 PM

You are in the GMC Yukon Forum.

What is this discussion about? GMC Yukon Denali, SUV

    
 
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Messages Page 104 of 110

#1024 of 1091 Re: GMC Yukon Denali Problems [tsutter] by irwinm1

Jan 02, 2012 (10:49 pm)

Replying to: tsutter (Nov 25, 2008 7:15 pm)
I also got code p2138 from on star. I saw your post and disconnected the battery and then the sensor connection on the gas pedal. It worked! no more service stabilitrak or reduced engine power. This is the second time this happened to my 2009 Yukon Denali. It happened a month ago and the dealer replaced my throttle body. Then happened again yesterday. Thankful this worked after reading all of the posts on reduced engine power.

#1025 of 1091 Re: 2005 Yukon Xl Denali electrical issues [elmermax] by elmermax

Jan 08, 2012 (11:33 am)

Replying to: elmermax (Dec 17, 2011 1:29 pm)
Hey, I fixed my problem it was a bad connection at the Passenger Door Module(master window switch) one of the connections has a lock on it that keeps it from coming lose mine had broken off at the clasp. I unplugged and secured with a cable tie until I can find the connector at a junk yard online. Anyway it works perfect and Whew what a savings vs the 400.00 plus repair for a bad PDM at the dealer.

#1027 of 1091 Service Air Bag light 2005 Yukon SLT by el_nunya

Jan 15, 2012 (11:10 am)

A while back my service airbag light came on. It is a bit annoying, so started searching online for a possible reason (never wrecked). There's all kinds of airbag problems online. So husband got a SRS scanner/reader and got codes B0026, B0043, B0044, B0084, B0100, and B0104. Have searched recalls and technical service bulletins, called GMC customer service, and researched until I'm blue in the face. Any ideas?

#1028 of 1091 Re: Service Air Bag light 2005 Yukon SLT [el_nunya] by Mr_Shiftright HOST

Jan 15, 2012 (4:28 pm)

Replying to: el_nunya (Jan 15, 2012 11:10 am)
DTC B0026-stage 1 or B0044-stage 2 will set when one of the following conditions occurs:
The SDM (system and diagnostic module) detects the steering wheel module deployment loop resistance is greater than 4.8 ohms for 500 milliseconds .
The SDM detects the voltage at steering wheel module high control is less than 2.4 volts and steering wheel module deployment loop resistance is 6 ohms or greater for 500 milliseconds .
 
DTC B0084
 
CIRCUIT DESCRIPTION
The inflatable restraint seat position sensor (SPS) is used to determine the proximity of a front driver or passenger seat position with respect to the frontal air bag. The SPS interfaces with the sensing and diagnostic module (SDM). The state of the SPS allows the SDM to disable stage 2 of the frontal air bag for a front seat that is forward of a forward/rearward point in seat track travel. The SPS is a hall effect sensor that is mounted on the outboard seat track of both the driver and passenger seats. The seat track includes a metal bracket that shunts the SPS magnetic circuit creating 2 states of seat position. The shunted state represents a rearward seat position. The non-shunted state represents a forward position. The SPS provides 2 current ranges, one range for the shunted state and a second range for a non-shunted state. These 2 states are inputs to the SDM. State 1 (shunted) being the rearward threshold and state 2 (non-shunted) being the forward threshold. When the SDM receives input from a SPS that state 1 threshold is reached (seat is rearward) the SDM will not disable stage 2 deployment, if required by the deployment sensors. When state 2 threshold is reached (seat is forward) the SDM will disable stage 2 deployment on the side the seat is forward. The SDM monitors the SPS circuit and if a fault is detected the SDM will set codes B0083 or B0084 and defaults to disabling stage 2 frontal deployment. This will only default on the side of the vehicle the sensor has a fault. Its important to understand that the SPS is secondary to the passenger presence system (PPS) and the manual instrument panel (I/P) module disable switch. If either one of these devices are in the disable mode the passenger air bag will not deploy regardless of the SPS status.
 
DTC B0100
 
CIRCUIT DESCRIPTION
The inflatable restraint front end sensor utilizes a unidirectional 2-wire circuit. The front end sensor modulates current on the interface to send ID, State of Health, and deployment commands to the inflatable restraint sensing and diagnostic module (SDM). The SDM serves as a power source and a ground for the front end sensor. When the ignition is turned on and input power from the SDM is first detected, the front end sensor responds by performing internal diagnostics and sending an ID to the SDM. The SDM considers the ID to be valid if the response time is less than 5 seconds . The front end sensor continually communicates status messages to the SDM, which determines if a fault is present in the front end sensor circuit. When a fault is detected, the SDM resets the front end sensor twice by removing and reapplying power. If the fault is still present, the SDM will set a DTC.
 
CONDITIONS FOR SETTING THE DTC
DTC B0100 and B0103 will set when one of the following conditions occur:
A valid ID message is not received within 5 seconds of the front end sensor being powered up.
Status message is not received.
The SDM has failed twice to reset the front end sensor.
DTC B0102 and B0105 will set when one of the following conditions occur:
The SDM has received an ID message from the front end sensor which does not match the ID stored in the SDM memory.
When 2 front end sensor resets are attempted without the correct identification being detected by the SDM.
DTC B0101 and B0104 will set when the SDM has received 4 consecutive NOK (Not OK) messages from the front end sensor.

#1030 of 1091 Numerous problems right after warranty ends by kkccdenali

Jan 17, 2012 (1:32 pm)

Driving down the road, we got the message service battery charging system, then all of sudden car no longer works. Got it towed to our dealer and of course now that we have had the car for a couple of months everything goes wrong. $3500 of service to get the thing up and running. Right after warranty ends. Alternator is bad, oil cap is leaking, ring on 4 wheel drive is broke, motor on the rear tailgate...the list goes on. Clearly the car was not built to last? What can I do since the warranty is technically up?

#1031 of 1091 Re: Numerous problems right after warranty ends [kkccdenali] by gmcustsvcsarah

Jan 18, 2012 (6:19 am)

Replying to: kkccdenali (Jan 17, 2012 1:32 pm)
Is your car still in at the dealership? If you would like to open a Service Request with us, we could explore what options may be available to you after doing some investigating. Please send us an email with your name/Edmunds user name, your contact information (phone and address please), the last 8 digits of your VIN and current mileage, and the name of your involved dealership. My coworker Christina, who answers most of the emails from Edmunds, will advise you as to our next steps.
 
Regards,
Sarah
GM Customer Service

#1032 of 1091 Rear Differential Slipping by tnyabinghi

Jan 18, 2012 (3:12 pm)

Have a 2000 Yukon Denali with about 113500 miles. Just had transmission rebuilt. Mechanic said rear differential is slipping because at times, it is slipping when I turn left or right. He told me to just keep driving it until I could no longer drive it. It could go out in a year or 5-6 years.
I drive over 1000 miles a week and cannot afford to be put down on the road. Any suggestions?
 
Tahira

#1033 of 1091 Re: battery keeps dying [426whit] by thebigman2

Jan 21, 2012 (7:18 pm)

Replying to: 426whit (Jan 02, 2009 7:18 pm)
I have the exact same problem. It is driving me crazy four batteries later.

Messages Page 104 of 110

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