Keyless Entry System & Remote Functions: Other Chevrolet Silverado 3500 HD

Reference Information

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation (with Accessory 2 Way Remote) or Keyless Entry System Description and Operation (without Accessory 2 Way Remote)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Perform the RCDLR Programming and Setup procedure. Refer to Remote Control Door Lock Receiver Programming and Setup .

1. If the DTC resets, replace the RCDLR.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for RCDLR replacement, setup, and programming

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation (with Accessory 2 Way Remote) or Keyless Entry System Description and Operation (without Accessory 2 Way Remote)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 43241 Keyless Entry Tester. See Special Tools .

Attempt to program the keyless entry transmitter, refer to Remote Control Door Lock Transmitter Programming . The transmitter should program.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for RCDLR replacement, setup, and programming

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation (with Accessory 2 Way Remote) or Keyless Entry System Description and Operation (without Accessory 2 Way Remote)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

Verify DTC B3109, B3110, B3111, or B3112 are not set.

1. If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC resets, replace the keyless entry transmitter.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Remote Control Door Lock Transmitter Programming

Symptoms - Remote Functions

1. Perform «Diagnostic System Check - Vehicle»(ref-317170-S03444519162009060900000) before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «Keyless Entry System Description and Operation (with Accessory 2 Way Remote)»(ref-317175-S05667257752009060900000) or «Keyless Entry System Description and Operation (without Accessory 2 Way Remote)»(ref-317175-S08207284942009060900000) .

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Garage Door Opener Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 41540 Universal Home Remote Tester

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for GDO replacement, setup, and programming

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation (with Accessory 2 Way Remote) or Keyless Entry System Description and Operation (without Accessory 2 Way Remote)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 43241 Keyless Entry Tester. See Special Tools .

Attempt to program the keyless entry transmitter, refer to Remote Control Door Lock Transmitter Programming . The transmitter should program.

Note. This vehicle may be equipped with the Advance 2 Way Remote Start System. Vehicle equipped with the Advance 2 Way Remote Start System can be identified by an LCD screen on the keyless entry transmitter or a yellow label on the RCDLR. When servicing the Advance 2 Way Remote Start System, ensure that the correct parts are installed during replacement. Service parts for the Advance 2 Way Remote Start System can be found in the Accessory section of the parts manual.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Remote Control Door Lock Transmitter Programming»(ref-317175-S24778961372009060900000)
2. «Control Module References»(ref-317173-S10180079792009060900000) for RCDLR replacement, setup, and programming

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation (with Accessory 2 Way Remote) or Keyless Entry System Description and Operation (without Accessory 2 Way Remote)

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information

1. Verify that RVS is enabled through vehicle personalization. If RVS is not enabled, use vehicle personalization to turn on RVS functionality. Refer to the vehicle owners manual.
2. Verify that the keyless entry functions operate with all available keyless entry transmitters. If the keyless entry system does not function properly, refer to «Keyless Entry System Inoperative»(ref-317175-S17232780802009060900000) .
3. Observe the scan tool ECM and BCM RVS Disable History parameters, Verify that no RVS Disable History items are present. If RVS Disable History items are present, refer to the appropriate information in which the failure occurred.
4. Verify the scan tool BCM Current CTD Trigger parameter displays None. If not specified value, refer to «Content Theft Deterrent Malfunction»(ref-317252-S34641506602009060900000) .

Scheme 30

Scheme 31

Scheme 32

Garage Door Opener Programming - Universal

Programming the GDO for Rolling Code Receivers

This procedure will learn a rolling code garage door opener to the GDO transmitter. The learn process must be completed within 30 seconds.

1. Press the two outside buttons of the GDO for one to two seconds, then immediately release them.
2. Locate the "Learn" or "Smart" button on the garage door opener receiver (located on the garage door opener motor-head unit). It is often found where the hanging antenna wire is attached to the motor-head unit and may be a colored button. Refer to the garage door opener operator's manual or call 1-866-572-2728 for assistance. Press the "Learn" or "Smart" button. The garage door opener operator's manual may provide assistance in determining when the unit is in learn mode.
3. Immediately return to the GDO transmitter in the vehicle. Press and hold the button that is to be learned; the LED above the button will begin to flash slowly. When the garage door moves, immediately release the button. The LED will flash rapidly until programming is complete.
4. Press the button used during the learn operation again in order to verify that the GDO transmitter has been programmed.

The GDO is compatible with most, but not all, types of garage door openers. If the GDO LED does not flash rapidly after 90 seconds, there may be a compatibility conflict with the garage door opener. Call 1-866-572-2728 to address compatibility concerns.

Programming the GDO for Fixed Code Receivers

This procedure will learn a fixed code garage door opener to the GDO transmitter. To determine if the customer has a fixed code garage door opener, remove the battery cover on the customer supplied transmitter. If a row of dip switches is present, the garage door opener is a fixed code version. The transmitter should have anywhere from 8 to 12 switches. The garage door opener receiver may also have a set of dip switches. If the number of switches on the receiver and the transmitter do not match, use the receiver switches to program the GDO. Each dip switch may have either two or three positions. The two position switch can either be ON or OFF. The three position switch can either be ON, NEUTRAL, or OFF.

1. Write down the positions of the dip switches. The positions of the switches will be entered from left to right into the GDO using the three buttons.
2. Press all three buttons on the GDO for three seconds and immediately release them. The LEDs should flash slowly, indicating that the GDO is in programming mode.
3. Enter the positions of the dip switches one at a time. If a position of a dip switch is on, press the left button on the GDO. If the position is neutral, press the middle button of the GDO. If the position is off, press the right button of the GDO. Enter all of the positions of the dip switches. The procedure must be completed in two and a half minutes.
4. After entering all of the switch positions, firmly press and release all three buttons at the same time. The indicator lights will turn on.
5. Press and hold the button that is to be learned; the LED above the button will begin to flash slowly. When the garage door moves, immediately release the button. The LED will flash rapidly until programming is complete.
6. Press the button used during the learn operation again in order to verify that the GDO transmitter has been programmed.

The GDO is compatible with most, but not all, types of garage door openers. If the GDO light does not flash rapidly after 90 seconds, there may be a compatibility conflict with the garage door opener. Call 1-866-572-2728 to address compatibility concerns.

Erasing Channels

To erase programmed channels, press and hold the two outside buttons until the lights on the GDO transmitter begins to flash. Once the LEDs begin to flash, release both buttons; all learned codes are now erased.

Individual channels cannot be erased, but can be reprogrammed using the procedures above.

Scheme 33

Next Available Slot

Note. On some vehicles, keyless entry transmitters may also be programmed using the driver information center (DIC). Refer to the vehicle owners manual for information. All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is made, all learned transmitters are erased. If all the existing transmitters associated with the vehicle are not learned at this time, they will become inoperative and require additional programming. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle.

This procedure will program keyless entry transmitters in sequential order. If two transmitters are currently learned to the vehicle as transmitters 1 and 2, using this procedure will learn the next transmitter are transmitter 3, and so on.

1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select Program Key Fobs.
2. Select Next Available Slot. The vehicle chime will sound two times to indicate programming mode has been entered. Follow the on-screen instructions. After each transmitter has been programmed, the vehicle chime will sound to confirm the programming.
3. When all the desired transmitters have been programmed, cycle the ignition from ON to OFF, exit the vehicle, and operate the transmitter functions in order to verify correct system operation.

Invalidate All Fobs

Note. On some vehicles, keyless entry transmitters may also be programmed using the driver information center (DIC). Refer to the vehicle owners manual for information. All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. Once the Invalidate All Fobs selection is made, all learned transmitters are erased. If all the existing transmitters associated with the vehicle are not learned at this time, they will become inoperative and require additional programming. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle.

This procedure will first erase all known keyless entry transmitters. After all transmitters are erased, the procedure will begin to program keyless entry transmitters in sequential order, beginning with transmitter 1.

1. With a scan tool, access the Remote Control Door Lock Receiver Module Setup menu. Select Program Key Fobs.
2. Select Invalidate All Fobs. This will erase all learned transmitters and prepare the RCDLR to learn new transmitters. Follow the on-screen instructions. After each transmitter has been programmed, the vehicle chime will sound to confirm the programming.
3. When all the desired transmitters have been programmed, cycle the ignition from ON to OFF, exit the vehicle, and operate the transmitter functions in order to verify correct system operation.

Transmitter Slot Programming

Transmitter slot programming allows a single transmitter to be programmed into a specific slot without affecting any of the other programmed transmitters. By using slot programming, the transmitter originally programmed to a specific slot is erased and the new transmitter learned in its placed.

1. Install a scan tool.
2. Turn ON the ignition with the engine OFF.
3. With the scan tool, select Body.
4. Select Remote Control Door Lock Receiver (RCDLR).
5. Select Module Setup.
6. Select Program Key Fobs.
7. Select the key fob desired to be programmed.
8. Follow the scan tool on screen instructions.
9. Remove the scan tool.
10. Exit the vehicle. Operate all functions on transmitters to verify correct system operation.

Keyless Entry Transmitters

The keyless entry transmitters are used to lock and unlock the vehicle door while away from the immediate area of the vehicle. The 2 Way Advance Remote Start System is designed to operate at distances of up to three times that of the factory remote start system. Up to 4 transmitters may be programmed to a single vehicle. A single 2 Way Advance Remote Start transmitter may be programmed to two vehicles, provided both vehicle have the 2 Way Advance Remote Start System installed.

The 2 Way Advance Remote Start transmitter acts as both a transmitter and a receiver. As a transmitter, it sends commands which are received by the RCDLR. As a receiver, various vehicle information is received by the transmitter and displayed on the LCD.

The 2 Way Advance Remote Start transmitter can display the following information on the LCD

1. Date and time (+/-2 minutes)
2. Current radio station settings
3. Approximate fuel level
4. Odometer (+/-1 mile)
5. Tire pressure

To verify all LCD display segments are operating properly, pressing the left transmitter button for 10 seconds will briefly display all LCD segments. In some situations, it is possible for a transmitter to operate vehicle devices such as door lock or remote start, but is unable to receive information from the RCDLR for display on the LCD. This may be a normal occurrence based on conditions and no attempt should be made to correct it.

2 Way Advanced Remote Start Antenna

The 2 Way Advanced Remote Start antenna sends and receives radio frequency (RF) communications between the keyless entry transmitters and the remote control door lock receiver (RCDLR). The keyless entry antenna also receives RF signals from the tire pressure monitoring (TPM) sensors located at each wheel and sends this information to the RCDLR.

A coax antenna lead connects the antenna to the RCDLR. When a transmitter button is pressed, the RF signal sent by the transmitter is received by the antenna and the communications are inputted to the RCDLR. The RCDLR also sends information to the transmitters via the antenna.

Remote Control Door Lock Receiver (RCDLR)

The remote control door lock receiver (RCDLR) is a multifunction module that operates both the keyless entry system as well as the tire pressure monitoring (TPM) system. When an RF message is received from a keyless entry transmitter, the RCDLR interprets this signal and will request via serial data that the body control module (BCM) perform the specific function, i.e. door lock, door unlock, or vehicle locate. The RCDLR also sends messages out to the 2 Way Advanced Remote Start transmitter.

Unlock Driver Door Only

Momentarily press the transmitter UNLOCK button in order to perform the following functions

1. Unlock only the driver door.
2. Illuminate the interior lamps for a determined length of time, or until the ignition is turned ON.
3. Flash the exterior lights, if enabled through personalization.
4. Disarm the content theft deterrent (CTD) system, if equipped.
5. Deactivate the CTD system when in the alarm mode.
6. Indicate the driver door is unlocked on the transmitter LCD-The LCD driver door segment will disappear.

Lock All Doors

Press the transmitter LOCK button to perform the following functions

1. Lock all vehicle doors.
2. Immediately turn OFF the interior lamps.
3. Flash the exterior lights, if enabled through personalization.
4. Chirp the horn, if enabled through personalization.
5. Arm the CTD system, if equipped.
6. Indicate all doors are locked on the transmitter LCD-All LCD door segments will appear

Vehicle Locator/Panic Alarm

A single press of the panic button performs the following functions. Some functions may be dependent on personalization settings

1. Pulse the horn three times
2. Flash the exterior lamps three times
3. Display the horn segment on the transmitter LCD

A press and hold of the panic button performs the following functions

1. Illuminate the interior lamps
2. Flash the horn segment on the transmitter LCD
3. Pulse the horn and flash the exterior lamps for 30 second or until the following conditions occur: The panic button is pressed The ignition switch is turned to the RUN position with a valid key

Remote Vehicle Start (RVS), if equipped

The remote vehicle start (RVS) function allows engine starting while not in the vehicle. It also allows the vehicle HVAC system and other vehicle systems to enable, providing a comfortable vehicle upon entry. RVS functions have an operating range of up to 195 feet, depending on conditions. The RVS sequence begins by pressing and releasing the lock button and then pressing and holding the RVS buttons on the keyless entry transmitter. The turn signal lamps will illuminate to indicate the vehicle has received the remote start request. Each time an RVS is performed, the vehicle doors are locked, however they may then be unlocked/locked with the transmitter or vehicle key at any time. Once activated, the engine is allowed to run for 10 minutes. The RVS time may be extended by an additional 10 minutes by again pressing and releasing the lock button and then pressing and holding the RVS buttons on the transmitter. This feature is called a RVS continue and allows a maximum of 20 minutes of engine running. If the RVS continue is performed at 7 minutes into the initial 10 minute time-out, a total of 17 minutes of engine running would occur. The RVS event may be suspended at any time by pressing only the RVS button on the transmitter or by entering the vehicle and turning ON the hazard lamps.

In between ignition cycles, only 2 RVS events may occur or be attempted. Once 2 events or attempts have been made, future RVS events will be suspended until the vehicle is started using the ignition. The LCD display on the 2 Way Advance Remote Start transmitter will count down the remaining minutes in the RVS sequence. If an RVS attempt is not allowed, the LCD will flash all dashes when pressing the remote start button on the transmitter.

Enable/Disable RVS

Using the driver information center (DIC), RVS may be enabled or disabled as a part of vehicle personalization. Refer to the vehicle owners manual for more information.

Hood Ajar Switch

The hood switch provides status of the hood to the BCM for RVS purposes. The switch is integrated into the hood latch assembly. The hood ajar switch provides 2 separate inputs to the BCM. These separate inputs allow the BCM to actively monitor for a hood ajar switch fault.

Keyless Entry Personalization

Vehicle lock/unlock functions and remote vehicle start (RVS) settings may be personalized. For functional descriptions and personalization instructions, refer to the vehicle owners manual.

Rolling Code

The Keyless Entry System uses rolling code technology. Rolling code technology prevents anyone from recording the message sent from the transmitter and using the message in order to gain entry to the vehicle. The term "rolling code" refers to the way that the Keyless Entry System sends and receives the signals. The transmitter sends the signal in a different order each time. The transmitter and the remote control door lock receiver (RCDLR) are synchronized to the appropriate order. If a programmed transmitter sends a signal that is not in the order that the RCDLR expects, then the transmitter is out of synchronization. This occurs after 256 presses of any transmitter button when it is out of range of the vehicle.

Automatic Synchronization

The keyless entry transmitters do not require a manual synchronization procedure. If needed, the transmitters automatically re-synchronize when any button on the transmitter is pressed within range of the vehicle. The transmitter will operate normally after the automatic synchronization.

The keyless entry transmitters are used to lock and unlock the vehicle door while away from the immediate are of the vehicle. Vehicles without remote vehicle start will operate at a distance of up to 65 feet (20 m) away. Vehicle with remote vehicle start will operate at a distance of up to 195 feet (60 m) away. Up to 8 transmitters may be programmed to a single vehicle.

Keyless Entry Antenna

The keyless entry antenna is used to receive radio frequency (RF) communications sent by the keyless entry transmitters. The keyless entry antenna also receives RF signals from the tire pressure monitoring (TPM) sensors located at each wheel.

A coax antenna lead connects the antenna to the remote control door lock receiver (RCDLR). When a transmitter button is present, the RF signal sent by the transmitter is received by the antenna and the communications are inputted to the RCDLR.

The remote control door lock receiver (RCDLR) is a multifunction module that operates both the keyless entry system as well as the TPM system. When an RF message is received from a keyless entry transmitter, the RCDLR interprets this signal and will request via serial data that the body control module (BCM) perform the specific function, i.e. door lock, door unlock, or vehicle locate.

Momentarily press the transmitter UNLOCK button in order to perform the following functions

1. Unlock only the driver door.
2. Illuminate the interior lamps for a determined length of time, or until the ignition is turned ON
3. Flash the exterior lights, if enabled through personalization
4. Disarm the Content Theft Deterrent (CTD) System, if equipped
5. Deactivate the CTD system when in the alarm mode

Press the transmitter LOCK button to perform the following functions

1. Lock all vehicle doors
2. Immediately turn OFF the interior lamps
3. Flash the exterior lights, if enabled through personalization
4. Chirp the horn, if enabled through personalization
5. Arm the CTD System, if equipped

A single press of the panic button performs the following functions. Some functions may be dependent on personalization settings

1. Pulse the horn three times
2. Flash the exterior lamps three times

A press and hold of the panic button performs the following functions

1. Illuminate the interior lamps
2. Pulse the horn and flash the exterior lamps for 30 second or until the following conditions occur: The panic button is pressed The ignition switch is turned to the RUN position with a valid key

Remote Vehicle Start (RVS) (if equipped)

The remote vehicle start (RVS) function allows engine starting while not in the vehicle. It also allows the vehicle HVAC system and other vehicle systems to enable, providing a comfortable vehicle upon entry. RVS functions have an operating range of up to 195 feet, depending on conditions. The RVS sequence begins by pressing and releasing the lock button and then pressing and holding the RVS buttons on the keyless entry transmitter. The turn signal lamps will illuminate to indicate the vehicle has received the remote start request. Each time an RVS is performed, the vehicle doors are locked, however they may then be unlocked/locked with the transmitter or vehicle key at any time. Once activated, the engine is allowed to run for 10 minutes. The RVS time may be extended by an additional 10 minute by again pressing and releasing the lock button and then pressing and holding the RVS buttons on the transmitter. This feature is called a RVS continue and allows a maximum of 20 minutes of engine running. If the RVS continue is performed at 7 minutes into the initial 10 minute time-out, a total of 17 minutes of engine running would occur. The RVS event may be suspended at any time by pressing only the RVS button on the transmitter or by entering the vehicle and turning ON the hazard lamps.

In between ignition cycles, only two RVS events may occur or be attempted. Once two events or attempts have been made, future RVS events will be suspended until the vehicle is started using the ignition.

Using the driver information center (DIC), RVS may be enabled or disabled as a part of vehicle personalization. Refer to the vehicle owners manual for more information.

The hood switch provides status of the hood to the BCM for RVS purposes. The switch is integrated into the hood latch assembly. The hood ajar switch provides 2 separate inputs to the BCM. These separate inputs allow the BCM to actively monitor for a hood ajar switch fault.

Vehicle lock/unlock functions and remote vehicle start (RVS) settings may be personalized. For functional descriptions and personalization instructions, refer to the vehicle owners manual.

The Keyless Entry System uses rolling code technology. Rolling code technology prevents anyone from recording the message sent from the transmitter and using the message in order to gain entry to the vehicle. The term "rolling code" refers to the way that the Keyless Entry System sends and receives the signals. The transmitter sends the signal in a different order each time. The transmitter and the remote control door lock receiver (RCDLR) are synchronized to the appropriate order. If a programmed transmitter sends a signal that is not in the order that the RCDLR expects, then the transmitter is out of synchronization. This occurs after 256 presses of any transmitter button when it is out of range of the vehicle.

The keyless entry transmitters do not require a manual synchronization procedure. If needed, the transmitters automatically re-synchronize when any button on the transmitter is pressed within range of the vehicle. The transmitter will operate normally after the automatic synchronization.