Remote Keyless Entry Interference - Oemdtc
April 2011Volume 13, No.4Remote KeylessEntry InterferenceThe GM Remote Keyless Entry (RKE) systems operate on highfrequency radio signals. Therefore, they may be subject to radiosignal interference — ranging from radio towers to department storeautomatic sliding doors — that will affect RKE operation. If an RKEsystem receives two transmissions from separate sources at the sametime, it will ignore both.During diagnosis of an RKE system with a reduced or intermittentrange condition, first determine if the root cause lies with the transmitter(key fob), the receiver (in most cases, the Remote Control Door LockReceiver) in the vehicle, or is the result of radio frequency (RF) interference.With every button press on the transmitter, the RKE system works inconjunction with the Body Control Module (BCM) to remotely activate certainvehicle features. This is accomplished by the transmitter sending a radio frequencysignal to the Remote Control Door Lock Receiver (RCDLR), which interprets thesignal and activates the requested function via a serial data message to the BCM.TIP: To prevent transmitter battery drain on later models, any RKE transmitter button(s) that is depressed longer than 30 seconds orpressed multiple times will be disabled. The disabled button(s) will remain disabled until another button that has not been disabled ispressed or if the disabled button(s) is not used for a certain amount of time.Begin any diagnosis by first verifying that the transmitter part number is the correct model forthe vehicle. There may be several transmitters used in the owner’s household. The incorrectTECHLINE newscontinued on page 2ContentsVibe Powertrain ControlModule ProgrammingAdditional Powertrain Control Module (PCM) calibrations have recently beenreleased for the Pontiac Vibe that address various drivability and illuminated MILissues. For dealerships that do not have extensive experience servicing the Vibe, ithas a unique service programming process that requires the use of the CalibrationUpdate Wizard (CUW) application; the Service Programming System (SPS) is notused. The CUW application is a separate application that is downloaded fromTIS2Web.To download the application: Click the Help menu question mark icon on the TIS2Web homepage Click Vibe Programming Application and Calibrations in the left column of the Helpscreen Two separate options are available – Download the Vibe Programming Application,and Vibe Programming Application and Calibrationscontinued on page 2Remote Keyless Entry Interference . . . . . . . . . .1Vibe Powertrain Control Module Programming .1Hybrid Battery MIL Illuminated/No Charge Condition . . . . . . . . . . . . . . . . . . . . .3Duramax Diesel TurbochargerVane Position Sensor . . . . . . . . . . . . . . . . . . . . .3Volt Power Mode Methods . . . . . . . . . . . . . . . . .4Rear Seat Belt Reminder Indicator Operation . .4Jump Starting the Volt . . . . . . . . . . . . . . . . . . . .5Bleeding the Brakes . . . . . . . . . . . . . . . . . . . . . .5Battery Too Cold Message . . . . . . . . . . . . . . . .5Intermittent Service Stability/TractionControl Messages . . . . . . . . . . . . . . . . . . . . . . .6New HD Trucks’ Steering System . . . . . . . . . . .6Detonation/Spark Knock underLight Acceleration . . . . . . . . . . . . . . . . . . . . . . .7Sunroof/Sunshade Relearn Tips . . . . . . . . . . . .7Service Know-How . . . . . . . . . . . . . . . . . . . . . . .7Car Issues – Fix It Right the First Time . . . . . . .8Truck Issues – Fix It Right the First Time . . . . . .9Customer Care and Aftersales
Remote Keyless Entry Interference –Also use the J 43241 tester to test thefunctionality of each button on the transmitter. The tester should sound a tone andilluminate the green LED when each transmitter button is pressed. If a button fails,replace the transmitter battery and testthe transmitter again before replacing it.transmitter may pass the testingprocedure, but it will not activate theRKE system.InterferenceAs the number of electronic devices incorporated or carried in vehicles increases, sodoes the chance of interference and concerns of poor RKE system performance.Devices that may cause interfere with theRKE system include common items such ascell phone cords plugged into power outlets without the phone present, wirelessdoorbell transmitters, and garage dooropeners.Typical sources of interference that mayresult in reduced RKE transmitter operation include: Proximity to radio towers, airports,police and fire towers Installation of some aftermarketaccessories The presence of fluorescent lighting Some brands of radar detectors, CBradios, walkie-talkies, mobile radios, andcell phone chargers. These devices maybe in the affected vehicle or may be inanother vehicle in close proximity High RF traffic areas, such as shoppingmalls or stores with automatic doors orother RF devices Line of sight; the transmitter signal maysimply be obstructed by another vehicle,a building or other obstructionsSince some sources of interference arebased on location, be sure to ask the cus-continued from page 1TIP: For many 2006 and later vehicles,some functions require more than oneshort button press. Activating the trunkrelease, for example, requires pressing andholding the transmitter button before thetrunk lid will release.J 43241 Keyless Entry Testertomer if the RKE transmitter operates intermittently or erratically in only certain locations. Ask if these locations are nearradio towers, airports or other commonRF sources.Keyless Entry TesterIf a customer comments that the remotetransmitter fails to operate, press eachbutton on the transmitter one at a timewhile observing the vehicle systems toverify operation.If interference is suspected, it may bepossible to locate devices transmittingunwanted signals using the J 43241Keyless Entry Tester. Since the unwantedtransmissions are the same frequency asthe key fob, the LED on the tester will lightwhen the tester is slowly swept near thedevice. Be sure to sweep around all storage areas in the vehicle and under theinstrument panel and seats.TECHLINE newsIf the transmitter is functioning properly,program the RKE system following theprocedures in the appropriate ServiceInformation. All transmitters for the vehiclemust be present when programming thesystem.The RKE transmitter commands can beviewed on many vehicles using a scan tool.ResynchronizationFinally, a weak transmitter or vehiclebattery also could lead to reduced RKEsystem operation. It may be necessary toresynchronize the transmitter with thevehicle if the transmitter batteries arereplaced.If only the fuel door button (some Cadillacmodels) or the panic button (all other models) works, this may be a sign that thesystem needs to be resynchronized. Followthe transmitter synchronizer procedure inthe appropriate Service Information.Thanks to Ron Asmar and Brian Combscontinued from page 1Vibe Powertrain Control Module Programmingand modelyear.For completedownload instructions, referto Bulletin#09-06-04-006A.Whileperformingservice onthe Vibe,it is necessary to useboth theUse the Vibe CUW application toTech 2 andselect a calibration file.the MultipleDiagnosticInterface (MDI). The Tech 2 is used for retrieving the PCMcalibration and for performing the VIN learn function. The MDIis used for programming.TIP: The CUWapplication doesnot contain anyThe Vibe programming application andcalibrations.calibrations are both available under theCalibrations mustHelp menu on TIS2Web.be downloadedseparately fromTIS2Web after the programming application has been installedon the shop PC.When reviewing available calibrations, follow the table toensure the correct calibration is selected for the conditionThanks to Mike Waszczenko2April 2011
Hybrid Battery MIL Illuminated/No Charge ConditionSome 2008-2010 Malibu Hybrid modelsand 2007-2009 AURA Hybrid and VUEHybrid models may have an illuminatedbattery MIL or a no charge condition withDTCs P0AF8 (Hybrid System Voltage) orP0AFB (Hybrid Battery System VoltageHigh) set. The DTCs may have set afterservicing the Hybrid Battery Pack.Follow all published Service Information(SI) diagnostics if DTC P0AF8 or P0AFBare set. If there are other DTCs presentalong with DTC P0AF8 or P0AFB, diagnose those DTCs before continuing withthe P0AF8 or P0AFB diagnosis. If diagnosis leads to Testing for IntermittentConditions due to a history DTC P0AF8 orP0AFB, or if it leads to Starter GeneratorControl Module (SGCM) replacement dueto a current DTC P0AF8 or P0AFB,perform the following procedures beforeconsidering SGCM replacement.wiggling the door, it could be causing thiscondition. Open and close the door whilelistening to the disconnect switch, youshould hear it open and close each timethat the door is opened and closed. If OK,follow with the rest of the disconnect procedure before proceeding.Disconnect and inspect all of the connection points, following the SI procedures,called out in the following illustrations forsigns of arcing, corrosion, etc. If a DTC P0AF8 or P0AFB is setting, theconnections at the BECM, contactorrelay and disconnect switch should bechecked.A. 36 Volt Negative CableB. Generator Battery FuseC. 36 Volt Positive CableAlso check the following connections: 36 volt negative cable Generator battery fuse 36 volt positive cable Check that the disconnect door fastener istight so the disconnect switch does notopen and close. If the fastener is loose, orif you hear the switch open and close whileclean all ring-terminal connection pointswith a wire brush. Apply a light coat of dielectric grease toall of the disassembled ring-terminalconnection points above and to theterminals of the SGCM connectors.Refer to Bulletin #09-06-03-004 for thegrease part number.Disconnect the hybrid battery byfollowing the Hybrid Battery ServiceDisconnect/Connect Procedure in theService Information.If a DTC P0AF8 or P0AFB is setting, theconnections at the BECM, contactor relayand disconnect switch should be checked.D. 36 Volt Positive Cable atGenerator Control ModuleE. Ground Strap at Generator ControlModule and Chassis Connection GeneratorControl Module Connectors. 36 volt positive cable at generator control module Ground strap at generator control module and chassis connection generatorcontrol module connectors If any sign of arcing or corrosion is noticed on a ring-terminal, replace the related cable. If no sign of arcing is noted, Follow SI procedures to reassemble. Itis very important to use the SI torquespecifications when reassembling thering-terminal connections. Reconnect the hybrid battery andreinstall the battery cover, making sureit clicks — indicating it contacts thedisconnect switch. Re-evaluate thecondition.If DTC P0AF8 or P0AFB resets immediately, check the Hybrid Battery Pack voltage levels on the Battery Energy ControlModule (BECM) and SGCM data lists andrefer to DTC P0AF8 or P0AFB diagnosticsin SI. If all voltage levels check appropriately, replace the BECM. If the DTCs resetand the above tests have been performedagain, the SGCM should then be replaced.Thanks to Brian CiaverellaDuramax Diesel Turbocharger Vane Position SensorThe turbocharged 6.6L Duramax diesel engine (RPO LGH, LML)is available in severalExpress, Silverado, Savanaand Sierra models.is available that interfaces withthe ECM more efficiently.Complete the appropriateService Information (SI)diagnostic procedures for any setDTCs. If DTC P2564 or P2565 isstored along with an intermittentService Engine Soon light, alsoinspect the VPS serial numberlocated on the electrical connector/module.Updated VanePosition SensorOn some 2010-2011Express, Silverado, Savanaand Sierra models equippedwith the Duramax diesel(RPO LHG, LML), an intermittent turbocharger VanePosition Sensor (VPS) DTCmay set. To address thiscondition, an updated VPSApril 2011The serial number islocated on the electricalconnector/module.An updated VPS will have a serialnumber of -0011 or higher. If the VPS has a serial number endingin -0010, the sensor will need to be replaced.A. Vane Position SensorB. Electricalconnector/moduleThanks to Donald Langer3
Volt Power Mode Methodsvehicle but the propulsion mode is inactive. Some systems may beinactive in Vehicle in Service mode. To place the vehicle in theVehicle in Service mode, press and hold the Power button for fiveseconds. The Power button will illuminate steady.The Volt uses threeunique power modemethods: Vehicle Off,Vehicle On, and Vehicle in Service Mode.When performingservice, it’s important to know the operation of eachpower mode method.It is important to become familiar with the Volt description andoperation section of Power Moding in the Service Informationbefore performing service on a Volt. The diagnostics for the Voltcall out a specific power mode for many sections or DTC diagnostics. Using the wrong mode may lead to an inaccurate diagnosis.Most programming events require the vehicle to be in the Vehicle inService mode active state.Vehicle Off: Thismode provides noelectrical power tothe vehicle. ThePower button will not be illuminated.Power Mode MethodsVehicle On: This mode places the vehicle in a propulsion activestate. This is uniquely different than other push button start vehicles in that it is the equivalent of not only powering up the electricalsystem, but also starting the engine/electric drive system.To place the vehicle in the Vehicle On mode, press the Powerbutton once while the brake pedal is applied. The Power button willilluminate steady. If the vehicle is being serviced using Vehicle Onmode, it is recommended that the parking brake be engaged toprevent any unwanted movement of the vehicle.TIP: In the Vehicle On mode, the engine will start if the hood isopen. Take precautions when stringing wires and using testing toolsunder the hood of the vehicle before entering Vehicle On mode.Vehicle in Service: This mode provides electrical power to thePower Mode ParametersResulting Power ModeIn Vehicle Off power mode, then press thePower button with the Brake pedal depressed;transmitter in vehicleVehicle OnIn Vehicle Off power mode, then press andhold the Power button for more than 5 seconds without the brake pedal depressed;transmitter in vehicleVehicle in Service ModeIn Vehicle On power mode, then press thePower button with or without brake pedal depressed; transmitter in vehicleVehicle OffThanks to Dennis RicheyRear Seat Belt Reminder Indicator OperationThe 2011 Volt is equipped with a rear seatbelt reminder (RSBR) indicator that notifies the driver about the status of the rearseat belts. There may be some confusionabout how long the indicator is illuminatedin the instrument cluster.For rear seating, occupancy is determinedstrictly based on the seat belt switches;occupant sensing mats are not used. Rearseat occupants are not detected until theseat belt is buckled. If rear seat occupantsnever buckle the seat belts, the system willnot detect their presence. If the occupantsdo buckle the seat belts, the occupants aredetected and each corresponding seat beltreminder indicator will illuminate green.Once a rear seat occupant is detected,the system will assume that occupant ispresent for the duration of the ignitioncycle or until a rear door opens. If a reardoor is opened or an ignition cycle occurs,the indicator will reset and assume thereare no rear occupants until a buckle islatched again.In this example, the indicator shows thatthe right-side seat belt is buckled and theleft-side seat belt is unbuckled.The indicator has two sections to specifywhich seatbelts are buckled. If a seatbeltis unbuckled, the indicator will be red, andif the seatbelt is buckled, the indicator willbe green.The rear seat belt indicator is in thecenter of the instrument cluster.then stops again, the timer resets and thevehicle must be driven over 6.5 mph (10km/h) until the 35 second timer is reached.The rear seat belt indicator is designed tostay on until the vehicle speed exceeds 6.5mph (10 km/h) for 35 seconds whether therear seat belts are buckled or unbuckled. Ifthe vehicle is driven over 6.5 mph (10km/h) before reaching 35 seconds and4If a rear seat occupant unbuckles duringthe same ignition cycle and the vehiclespeed exceeds 6.5 mph (10 km/h) for 35seconds, the rear seat belt indicator willilluminate red in full screen mode and therear seat belt reminder chime will sound.The chime will stop after three seconds,but the rear seat belt reminder indicatorwill remain illuminated until the occupantbuckles or the ignition cycle ends. If theoccupant rebuckles, the indicator will illuminate green and will not go out until thespeed and time criteria is met again.Thanks to Paul RadzwilowiczApril 2011
Jump Startingthe VoltBleeding the BrakesThe 12-volt battery on the 2011 Volt is located belowthe cargo floor in the rear hatch. When attempting tojump start a dead 12V battery, use the remote 12V terminals located under the hood on the driver’s side ofthe vehicle. The positive terminal is under an accesscover. The negative terminal is marked GND. Theseterminalsshould beused forjumpstartingbecausethe rearhatch isinaccessiblewith adead 12Vbattery.TIP: DoUse the remote 12V terminals under thenot try tohood when jump starting the Volt.jump startanothervehicle using the remote 12V terminals. If the remote12V terminals are used to jump start another vehicle,the in-line safety fuse will open to protect the Volt electrical system. When attempting to jump start a vehiclewith the Volt, connect the jumper cables directly to the12V battery terminals located in the rear hatch.When jump starting the Volt, after the proper jumpercable connections are made, press the Power buttonwhile the brake pedal is applied to start the Volt. Thiswill wake up the electronics on the Volt. After the instrument cluster initializes, and the vehicle enterspropulsion mode, power from the high voltage batterywill be used to charge the 12V battery.The high voltage battery of the Volt cannot be jumpstarted either with another vehicle or a battery charger.Thanks to Ashmi HariaThe 2011 Volt braking system is unlike most traditional hydraulic brakesystems. It is very important for proper brake system performance tofollow the brake bleeding procedure exactly. Air trapped in the brake system will cause performance problems and set DTCs without the symptomsof a spongy or low brake pedal. If a step is missed in the brake bleedingprocedure, the process must be started over at step 1 without exception. Install a battery charger on the vehicle to maintain battery voltage. Use a pressure bleeder that iscapable of delivering 30 psi forthe entire bleeding procedure.Failure to provide a constant 30psi will cause air to be trapped inthe brake system and may causebrake performance problems orDTCs to set. Tool J 29532-A,Brake Pressure Bleeder, hasbeen tested extensively on thisapplication and has proven toprovide the necessary pressureand volume of brake fluid.J 29532-A BrakePressure BleederTIP: Vacuum bleeding andother brake bleeding tools are notacceptable for the brake bleedingprocedure.A J 29532-A brake pressure bleederor a diaphragm-type (ball bleeder)pressure bleeder along with theJ 35589-A, Brake Pressure BleederAdapter, must be used in order toperform the hybrid brake systembleeding procedure. A replacementJ 29532-A can be ordered from1-800-GM-TOOLS.TIP: Do not attempt to use themanual bleeding procedure as thiswill not properly bleed all the airfrom the system.J 35589-A, Brake PressureBleeder AdapterThanks to Paul RadzwilowiczBattery Too Cold Messagecharging system to warm the high voltagebattery, and then the vehicle can bestarted.If the Battery Too Cold, Plug In to Warmmessage is displayed on the Driver Information Center of the 2011 Volt, the vehiclewill not start until the high voltage batteryis warmed up.This condition usually occurs on vehiclesthat have been parked for a prolonged period of time in extremely cold temperatures(approximately -14 F or -25 C)When the vehicle is subjecte
Contents Vibe Powertrain Control Module Programming Additional Powertrain Control Module (PCM) calibrations have recently been released for the Pontiac Vibe that address various drivability and illuminated MIL issues. For dealerships tha
ASTRA 1000RS is a Vehicle remote Starter with keyless entry System G55RS is a Vehicle remote Starter with keyless entry System, it comes with 4 Button one way Remote, System Contents: Main Unit One 5-Button 2-Way LCD Remote and One 5- Button Random Code Transmitter (4000RS-2W-1) Two 5-Button Random Code Remote Transmitters (4000RS)
Page 1 of 12. Camry 2014 Keyless Entry System. Conflicts. Note: Not for installation on vehicles equipped with factory keyless entry
found later in this owner’s manual. Remote Keyless Entry (RKE) System The Remote Keyless Entry (RKE) transmitter is used to remotely lock and unlock the doors and it may work up to 60m (197ft) away from the vehicle. Key Access RKE Transmitter with Remote Start.
Oct 24, 2008 · 2006-2007 Cadillac DTS 2006-2007 Chevrolet Impala, Monte Carlo DTS / Lucerne: 5/1/07 Impala / Monte Carle: 3/1/07 The remote keyless entry (RKE) transmitters will not program, function and/or the RKE transmitter low battery message is displayed
El Salvador Market entry: 2005 Units: 89 Costa Rica Market entry: 2005 Units: 217 Nicaragua Market entry: 2005 Units: 86 Honduras Market entry: 2005 Units: 81 India Market entry: 2009 Units: 20 Africa Market entry: 2011 Chile Units: 396 Market entry: 2009 Units: 404 Brazil Market entry: 1995 Units: 557 Argentina Market entry: 1995 Units: 105 As .
NOTE: In this manual, F.A.S.T.-key (Free-hand Advanced Security Transmitter) is described as Keyless Operation System (KOS). The Keyless Operation System (KOS) enables the driver to unlock all the doors*and the liftgate by just pulling the front door outside handle or operating the liftgate lock release handle, without taking the key out
V & Wedge belts Pulleys & Sheaves Coupling & U-joints lts Chain Drives Smart Tools V & Wedge belts Pulleys ets Keyless bushings Special belts Chain Drives Smart joints Synchronous belts Sprockets Keyless bushings lleys & Sheaves Coupling & U-joints Synchronous belts mart ToolsV & Wedge belts Pulleys & Sheaves Coupling
intelligence until Deep Blue won the world championship from Kasparov—but even these researchers agree that something important is missing from modern AIs (e.g., Hofstadter 2006). While this subfield of Artificial Intelligence is only just coalescing, “Artificial General
