Keyless Entry System and Remote Functions Chevrolet Corvette C6

Fastener Tightening Specifications

Scheme 20

Scheme 21

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Diagnostic Starting Point - Remote Functions

Begin the system diagnosis with Diagnostic System Check - Vehicle . The Diagnostic System Check will provide the following information

1. The identification of the control modules which command the system
2. The ability of the control modules to communicate through the serial data circuit
3. The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The left keyless entry antenna is located in the left hand B-pillar area and is used as a short range low frequency (LF) transmitter. As a vehicle with locked doors is approached with a key fob and the exterior door handle switch is pressed, the keyless entry antenna transmitter broadcasts a challenge to the key fob in an approximately 1 meter range. If the response from the key fob via radio frequency (RF) is valid, the locked door will be passively unlocked/unlatched and allow the door to be opened.

Conditions for Running the DTC

A transmitter validation is requested.

Conditions for Setting the DTC

An improper voltage level is seen on the keyless entry antenna - left signal circuit.

Action Taken When the DTC Sets

The left keyless entry antenna is ignored.

Conditions for Clearing the DTC

1. A current DTC will clear when the conditions for setting the DTC are no longer present.
2. A history DTC will clear after 50 malfunction free ignition cycles.

Reference Information

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the left keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Depress the left door touch pad. Verify the DMM captured and AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the left keyless entry antenna.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Left Side»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The left keyless entry antenna is located in the right hand B-pillar area and is used as a short range low frequency (LF) transmitter. As a vehicle with locked doors is approached with a key fob and the exterior door handle switch is pressed, the keyless entry antenna transmitter broadcasts a challenge to the key fob in an approximately 1 meter range. If the response from the key fob via radio frequency (RF) is valid, the locked door will be passively unlocked/unlatched and allow the door to be opened.

A transmitter validation is requested.

An improper voltage level is seen on the keyless entry antenna - right signal circuit.

The right keyless entry antenna is ignored.

1. A current DTC will clear when the conditions for setting the DTC are no longer present.
2. A history DTC will clear after 50 malfunction free ignition cycles.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

1. Ignition OFF, disconnect the harness connector at the right keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Depress the right door touch pad. Verify the DMM captured and AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the right keyless entry antenna.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Right Side»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The rear compartment keyless entry antenna is located in the lower rear compartment area near the latch and is used as a short range low frequency (LF) transmitter. As a vehicle with a closed rear compartment lid is approached with a key fob and the exterior deck lid handle switch is pressed, the keyless entry antenna transmitter broadcasts a challenge to the key fob in an approximate 1 meter range. If the response from the key fob via radio frequency (RF) is valid, the latched rear compartment will be passively unlocked/unlatched, allowing the rear compartment area to be opened.

A transmitter validation is requested.

An improper voltage level is seen on the keyless entry antenna - rear compartment signal circuit.

The rear compartment keyless entry antenna is ignored.

1. A current DTC will clear when the conditions for setting the DTC are no longer present.
2. A history DTC will clear after 50 malfunction free ignition cycles.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

1. Ignition OFF, disconnect the harness connector at the rear compartment keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Depress the rear compartment touch pad. Verify the DMM captured and AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the rear compartment keyless entry antenna.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Rear Compartment»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The back up keyless entry antenna is located in the glove compartment area and is used as a short range low frequency (LF) transmitter. When a valid key fob is within the passenger compartment and the brake pedal is depressed and the ignition button is pressed the keyless entry antenna transmitter broadcasts a challenge within the passenger compartment to the key fob. If the response from the key fob via radio frequency (RF) is a valid response and all the security requirement are met the vehicles engine will start or be able to go into accessory mode.

A transmitter validation is requested.

An improper voltage level is seen on the keyless entry antenna - back up signal circuit.

The back up keyless entry antenna is ignored.

1. A current DTC will clear when the conditions for setting the DTC are no longer present.
2. A history DTC will clear after 50 malfunction free ignition cycles.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

1. Ignition OFF, disconnect the harness connector at the back up keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Ignition OFF, install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Ignition ON, verify the DMM captured an AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the back up keyless entry antenna.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Instrument Panel»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

Symptoms - Remote Functions

1. Perform «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) 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»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions) .

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the Keyless Entry System. Refer to «Checking Aftermarket Accessories»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__checking-aftermarket-accessories) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

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

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Garage Door Opener Inoperative»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Key Fob Not Detected»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
3. «Keyless Entry System Inoperative (Active)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions) or «Keyless Entry System Inoperative (Passive)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The garage door opener (GDO) is a transmitter operating between 288 and 399 MHz. The GDO has three buttons that may be programmed for individual transmitter/receiver combinations to control up to three GDOs, security gates, lighting systems, etc. Each button represents a unique transmitter code section, which operates independently of the other buttons, and may be considered a separate transmitter.

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»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 41540 Universal Home Remote Tester. See Special Tools .

1. Ignition OFF, disconnect the harness connector at the GDO.
2. Ignition OFF, test for less than 5 ohms of resistance between the ground circuit terminal 3 and ground. If greater than the specified value, test the ground circuit for an open/high resistance.
3. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition ON, hold the two outer buttons on the GDO for 30 seconds. After 20 seconds, the LEDs will flash indicating that all learned transmitter values have been cleared. After an additional 10 seconds, the LEDs will flash again indicating it has entered the diagnostic mode. Place the J 41540 adjacent to the GDO and press each button of the GDO one at a time. See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . The tester should indicate when each button is pressed. If the tester indicates that one or more of the buttons does not respond, replace the GDO.
5. Instruct the customer to program the GDO. Refer to the vehicle owners manual. A possible rolling code or incompatibility with the GDO receiver will prevent programming. Refer to www.learcar2u.com or 1-866-572-2728.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for GDO replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The back up keyless entry antenna is located in the glove compartment area and is used as a short range low frequency (LF) transmitter. When a valid key fob is within the passenger compartment and the brake pedal is depressed and the ignition button is pressed the keyless entry antenna transmitter broadcasts a challenge within the passenger compartment to the key fob. If the response from the key fob via radio frequency (RF) is a valid response and all the security requirement are met the vehicles engine will start or be able to go into accessory mode.

Diagnostic Aids

Areas of high radio frequency (RF) traffic may cause an intermittent NO FOB DETECTED message. This is a normal condition. If the vehicle is parked in an area of high RF traffic, move vehicle before continuing with diagnostics.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Verification

1. With the vehicle locked, attempt to passively unlock and enter the vehicle by approaching the vehicle with a valid transmitter and pressing the door touch pad. The door should unlock and open. If unable to enter the vehicle passively, refer to «Keyless Entry System Inoperative (Active)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions) or «Keyless Entry System Inoperative (Passive)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions) .
2. While placing the keyless entry transmitter in various locations within the vehicle interior, verify the vehicle does not start. If the vehicle starts, inspect for any sources of RF interference such as cell phone chargers, power supplies, etc. that would interrupt transmitter and antenna communication.

1. Ignition OFF, disconnect the harness connector at the back up keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Ignition OFF, install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Ignition ON, verify the DMM captured and AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the back up keyless entry antenna.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Instrument Panel»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The active keyless entry system is considered to be the device to control the following: door locking/unlocking, trunk access, and panic function. The keyless entry system will unlock the vehicle doors or open the rear compartment when a corresponding button on the keyless entry transmitter is pressed. This is accomplished by the keyless entry transmitter sending a radio frequency signal to the external RF antenna located in the back glass. This antenna is connected via coax cable to the remote control door lock receiver (RCDLR). The RCDLR interprets the signal and activates the requested function via serial data message. Poor performance of the system may be due to

1. Insufficient connection of the external RF Antenna to the RCDLR
2. Low transmitter battery
3. Radio Frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc
4. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders

For the J 43241 Keyless Entry Tester, inspect the keyless entry transmitter part number to determine that it is the correct model for the vehicle. See Special Tools . A wrong model transmitter may pass the test, but it will not activate the vehicle remote system.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

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 Transmitter Programming (N. America and Japan, except Canada) or Transmitter Programming (Canada and Europe) or Transmitter Programming (New RCDLR ONLY) . The transmitter should program.

1. Verify that the transmitter is the correct transmitter for the vehicle. If not the correct transmitter, replace the transmitter.
2. Verify the scan tool FOB Programmed parameter for the appropriate transmitter is Yes. If not the specified value, program the transmitter. Refer to «Transmitter Programming (N. America and Japan, except Canada)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-n-america-and-japan) or «Transmitter Programming (Canada and Europe)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-canada-and-europe) or «Transmitter Programming (New RCDLR ONLY)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-new-rcdlr-only) .
3. Place the transmitter on the test pad of the J 43241 and press each transmitter button one at a time. See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . The tester should sound a tone and illuminate a green light with each button press. If one or more buttons does not sound the tone and illuminate the green light, replace the transmitter battery and retest with the J 43241 . See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . If the condition continues after battery replacement, replace the transmitter.
4. Inspect the external RF antenna connection at the RCDLR. First, gently pull on the coax connector at the module. If the coax comes out, then it wasn't seated properly. Remove and carefully inspect the coax connection for bent blades or a bent center pin. Fix coax connection if necessary and re-seat connector until a "click" is heard. Gently pull on the coax connection to make sure it is seated properly.
5. Operate the transmitter while observing the scan tool Fob Function parameter for the appropriate transmitter. The parameter should correspond with the function selected on the transmitter. If the parameter does not match the function selected on the transmitter, replace the transmitter.
6. Attempt to program the transmitter, refer to «Transmitter Programming (N. America and Japan, except Canada)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-n-america-and-japan) or «Transmitter Programming (Canada and Europe)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-canada-and-europe) or «Transmitter Programming (New RCDLR ONLY)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-new-rcdlr-only) . The transmitter should program. If the transmitter does not program, test the keyless entry antenna for an open/high resistance. If the circuit tests normal, replace the RCDLR.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Transmitter Programming (N. America and Japan, except Canada)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-n-america-and-japan) or «Transmitter Programming (Canada and Europe)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-canada-and-europe) or «Transmitter Programming (New RCDLR ONLY)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__transmitter-programming-new-rcdlr-only)
2. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/chevrolet/corvette/c6-2004-2014/remont/oem-general-information/#vehicle-diagnostic-information__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The passive keyless entry antennas are used as short range low frequency (LF) transmitters. As a vehicle with locked doors is approached with a key fob and the exterior door handle switch is pressed, the keyless entry antenna transmitter broadcasts a challenge to the key fob in an approximately 1 meter range. If the response from the key fob via radio frequency (RF) is valid, the locked door will be passively unlocked/unlatched and allow the door to be opened. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

Schematic Reference

Remote Function Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__circuit-testing)
2. «Connector Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis)
4. «Wiring Repairs»(/chevrolet/corvette/c6-2004-2014/remont/body-electrical/#wiring-systems-and-power-management-service-troubleshooting-diagnosis__wiring-repairs)

Scan Tool Reference

Control Module References for Scan Tool Information

Special Tools

J 43241 Keyless Enter Tester. See Special Tools .

1. Ignition On, observe the scan tool Ext. LF Door Handle Switch, RF Door Handle Switch, and Rear Compartment Lid Release Sw. parameters while pressing their respective touch pads. The parameter should change between Active and Inactive as commanded. If the parameter does not cycle between the specified values, refer to «Power Door Latch System Malfunction»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#door-lock-system-door-handles) .
2. With the vehicle locked, attempt to passively unlock and access the vehicle at the left door, right door, and rear compartment by approaching the vehicle with a valid transmitter and pressing the touch pad. Each door and rear compartment should unlock and open. If both doors and the rear compartment do no unlock and open, refer to «Passive Transmitter Malfunction»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__passive-transmitter-malfunction) .

1. If only one door or the rear compartment do no unlock and open, refer to «Antenna Circuit Malfunction»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__antenna-circuit-malfunction) .

Passive Transmitter Malfunction

1. Place the keyless entry transmitter on the J 43241 and approach the vehicle. See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . Depress the touch pad. Verify the J 43241 sounds a tone. See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . If the tone does not sound, replace the transmitter battery and retest with the J 43241 . See «Special Tools»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__special-tools) . If the condition continues after battery replacement, replace the keyless entry transmitter.
2. If all circuits test normal, test or replace the RCDLR.

Antenna Circuit Malfunction

1. Ignition OFF, disconnect the harness connector at the inoperative keyless entry antenna.
2. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.
3. Install a DMM between the signal circuit terminal A and the low reference circuit terminal B. Set the DMM to capture AC voltage using the MIN MAX function.
4. Depress the touch pad. Verify the DMM captured and AC voltage signal. If an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the RCDLR.
5. If all circuits test normal, test or replace the keyless entry antenna.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Ignition Lock Key Transmitter Antenna Replacement - Left Side»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
2. «Ignition Lock Key Transmitter Antenna Replacement - Right Side»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
3. «Ignition Lock Key Transmitter Antenna Replacement - Rear Compartment»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions)
4. «Control Module References»(/chevrolet/corvette/c6-2004-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for RCDLR replacement, setup, and programming

Removal Procedure

1. Open the instrument panel (I/P) compartment door.
2. Remove the I/P compartment. Refer to «Instrument Panel Compartment Replacement»(/chevrolet/corvette/c6-2004-2014/remont/gauges-instrument-panels/#instrument-panel-trim-and-console-trim) .
3. Remove the I/P antenna by pulling to disengage the antenna from the retaining bracket.
4. Disconnect the lead connector from the antenna wire harness.

Installation Procedure

1. Position the antenna to the I/P carrier.
2. Connect the wire harness lead to the antenna.
3. Push on the antenna to install the antenna to the retaining bracket.
4. Install the I/P compartment. Refer to «Instrument Panel Compartment Replacement»(/chevrolet/corvette/c6-2004-2014/remont/gauges-instrument-panels/#instrument-panel-trim-and-console-trim) .
5. Close the I/P compartment door.

1. Remove Rear Wheel (drivers side) - left. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/corvette/c6-2004-2014/remont/wheel-tire-system/#tires-and-wheels) .
2. Remove the rear wheel liner. Refer to «Rear Wheelhouse Panel Liner Replacement»(/chevrolet/corvette/c6-2004-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
3. Disconnect the electrical connector.
4. Disconnect left antenna from snap fit mounting - left.

1. Push on the antenna to engage the antenna to the retaining bracket.
2. Connect the antenna wire lead to the antenna.
3. Install the rear wheel liner. Refer to «Rear Wheelhouse Panel Liner Replacement»(/chevrolet/corvette/c6-2004-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
4. Install the rear wheel. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/corvette/c6-2004-2014/remont/wheel-tire-system/#tires-and-wheels) .

1. Remove the rear wheel (passenger side). Refer to «Tire and Wheel Removal and Installation»(/chevrolet/corvette/c6-2004-2014/remont/wheel-tire-system/#tires-and-wheels) .
2. Remove the rear wheel liner (passenger side)l. Refer to «Rear Wheelhouse Panel Liner Replacement»(/chevrolet/corvette/c6-2004-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
3. Disconnect the electrical connector.
4. Pull on the antenna to disengage the antenna from the retaining bracket.

1. Push on the antenna to engage the antenna to the retaining bracket.
2. Connect the antenna wire lead to the antenna.
3. Install the rear wheel liner. Refer to «Rear Wheelhouse Panel Liner Replacement»(/chevrolet/corvette/c6-2004-2014/remont/frames-subframes-crossmembers/#frame-and-underbody) .
4. Install the rear wheel. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/corvette/c6-2004-2014/remont/wheel-tire-system/#tires-and-wheels) .

1. Open the rear compartment.
2. Remove the center trim panel carpet. Refer to «Rear Compartment Rear Center Trim Panel Carpet Replacement»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#floor-coverings-and-headlinings) .
3. Disconnect the wire lead from the transmitter antenna.
4. Pull on the antenna to disengage the antenna from the retaining bracket.

1. Push on the antenna to engage the antenna to the retaining bracket.
2. Connect the wire lead to the transmitter antenna.
3. Install the center trim panel carpet. Refer to «Rear Compartment Rear Center Trim Panel Carpet Replacement»(/chevrolet/corvette/c6-2004-2014/remont/exteriorinterior-trim/#floor-coverings-and-headlinings) .
4. Close the rear compartment.

Scheme 22

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.

Garage Door Opener Transmitter Replacement

The universal garage door opener (UGDA) is serviced as part of the driver sunshade. Refer to Sunshade Replacement .

Refer to Control Module References for programming and setup information.

Transmitter Programming (N. America and Japan, except Canada)

There are 3 methods for programming key fobs. Up to 4 key fobs may be programmed to the remote control door lock receiver (RCDLR). Each programmed key fob is given a position of #1-#4 in the RCDLR memory.

All procedures require the use of a scan tool. If a scan tool is not available, refer to the vehicle owners manual for fob programming procedures.

Method 1 - Adding or Replacing a Key Fob (Known Key Fob Available)

This procedure will add or replace key fobs. To perform this procedure you must have the following: a fob already programmed to the module, a replacement key fob, and a scan tool.

1. Place a known fob in the cup holder.
2. Turn the vehicle in RUN, place the transmission in PARK (A/T) or REVERSE (M/T) and shut the vehicle OFF.
3. Using the scan tool access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
4. Select the fob position you wish to program: IMPORTANT: Selecting Invalidate All Fobs will erase any known fobs and require all fobs to be relearned to the vehicle. Invalidate All Fobs (Not used in this method) Program Fob 1 Program Fob 2 Program Fob 3 Program Fob 4
5. With the fob position selected, press the PROGRAM button on the scan tool. The DIC should display: READY FOR FOB X (X = fob 1, 2, 3 or 4, depending on the selected position) If the DIC displays: OFF/ACC TO LEARN, refer to «Method 2 - Replacing Key Fobs (No Known Key Fob Available)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__method-2-replacing-key-fobs) .
6. Place the replacement key fob in the glove box fob pocket with the buttons facing right.
7. A beep will occur indicating the fob has been programmed. If the Invalidate All Fobs selection was chosen the DIC will continue to the next available key fob slot until all slots are programmed or the DONE soft key is pressed on the scan tool to exit programming. If any other selection was chosen and additional fobs are needed to be programmed, repeat steps 3-5.
8. Remove previously learned fobs from vehicle. Press the UNLOCK button of each newly learned key fob to finalize the programming and confirm system operation.

Method 2 - Replacing Key Fobs (No Known Key Fob Available)

This procedure will erase all known key fobs. The procedure will then program a single or multiple key fobs. It requires that you have a replacement key fob and a scan tool. Any known fobs should be removed from the vicinity of the vehicle.

1. Using the scan tool access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
2. Select Invalidate All Fobs. Press enter on the Tech 2. The Tech 2 will display: FOLLOW SI INSTRUCTIONS. Press enter on the Tech 2 to continue, then press the PROGRAM button. The DIC will display: OFF/ACC TO LEARN.
3. Press the OFF/ACC portion of the ignition button.
4. The DIC will display a message: WAIT 10 MINUTES. It will then count down from 10 to 0, one minute at a time.
5. When the timer reaches 0, the DIC will display OFF/ACC TO LEARN. Repeat steps 3-5 two more times, for a total of 30 minutes. The repeating of steps 3-5 must be done within 3 minutes of the timer reaching zero to prevent the exiting of learn mode. On the second and third sequence, the DIC will briefly display NO FOB DETECTED before transitioning to the timer. This is normal.
6. At the end of the 30 minutes, a beep will occur and the DIC will display: READY FOR FOB 1. At this time all previously known key fobs have been erased.
7. Place the replacement key fob in the glove box fob pocket with the buttons facing right.
8. A beep will occur indicating the fob has been programmed.
9. Additional key fobs can be programmed by removing fob 1 from the pocket and inserting fob 2. If desired, up to 4 fobs can be programmed. Once 4 fobs have been learned, the DIC will display a message: MAX FOBS LEARNED, and automatically exit the program mode.
10. If learning less than 4 key fobs, press the OFF/ACC portion of the ignition button to exit the program mode.
11. Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.

Method 3 - Service Programming System Fob Programming (No Known Key Fob Available)

This procedure is a 10-minute relearn procedure using the Techline Terminal with SPS software. Once the 10-minute timer has expired, the fobs can be programmed similar to Method 1 using slot programming. A scan tool, Techline Terminal, and a replacement key fob are required to perform this procedure.

This procedure may be done in the OFF power mode.

1. Connect a scan tool to the vehicle in the pass-thru arrangement (TIS2000 will not work for this method).
2. On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Legacy Pass-Thru method.
3. If the vehicle can be powered up, turn the ignition on with the engine off. If the vehicle cannot be powered up, manually enter the VIN.
4. Select "VTD Vehicle Theft Deterrent Learn" under Component Replacement. Ensure that "Prepare RCDLR for key fob programming" is chosen.
5. At this point the scan tool must remain connected for the duration of the 10 minute relearn procedure.
6. When complete, select CONTINUE on the Tech 2, then exit out to the Vehicle Control Systems menu.
7. Use the scan tool to access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
8. Select INVALIDATE ALL FOBS and press the PROGRAM button.
9. The DIC will display a message: READY FOR FOB 1.
10. Place the replacement key fob in the glove box pocket with the buttons facing right. A beep will occur indicating programming completion. The DIC will display a message: READY FOR FOB 2.
11. If programming additional key fobs, repeat step 10, or press the DONE soft key on the scan tool to exit programming.
12. Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.
13. Clear any DTC's and remove the scan tool.

Transmitter Programming (Canada and Europe)

There are 2 methods for programming key fobs. Up to 4 key fobs may be programmed to the remote control door lock receiver (RCDLR). Each programmed key fob is given a position of #1-#4 in the RCDLR memory.

All procedures require the use of a scan tool. If a scan tool is not available, refer to the vehicle owners manual for fob programming procedures.

This procedure will add or replace key fobs. To perform this procedure, you must have a fob already programmed to the module, a replacement key fob, and a scan tool

1. Place a known fob in the cup holder.
2. Turn the vehicle to RUN, place the transmission in PARK (A/T) or REVERSE (M/T) and shut the vehicle OFF.
3. Using the scan tool access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
4. Select the fob position you wish to program: IMPORTANT: Selecting Invalidate All Fobs will erase any known fobs and require all fobs to be relearned to the vehicle. Invalidate All Fobs (Not used in this method) Program Fob 1 Program Fob 2 Program Fob 3 Program Fob 4
5. With the fob position selected, press the PROGRAM button on the scan tool. The DIC should display: READY FOR FOB X (X = fob 1, 2, 3 or 4, depending on the selected position) If the DIC displays: OFF/ACC TO LEARN, refer to «Method 2 - Service Programming System Fob Programming (No Known Key Fob Available)»(/chevrolet/corvette/c6-2004-2014/remont/door-locks-anti-theft-systems/#keyless-entry-system-and-remote-functions__method-2-service-programming-system) .
6. Place the replacement key fob in the glove box fob pocket with the buttons facing right.
7. A beep will occur indicating the fob has been programmed. If the Invalidate All Fobs selection was chosen the DIC will continue to the next available key fob slot until all slots are programmed or the DONE soft key is pressed to exit programming. If any other selection was chosen and additional fobs are needed to be programmed, repeat steps 3-5.
8. Remove previously learned fobs from vehicle. Press the UNLOCK button of each newly learned key fob to finalize the programming and confirm system operation.

Method 2 - Service Programming System Fob Programming (No Known Key Fob Available)

This procedure is a 10-minute relearn procedure using the Techline Terminal with SPS software. Once the 10-minute timer has expired, the fobs can be programmed similar to Method 1 using slot programming. A scan tool, Techline Terminal, and a replacement key fob are required to perform this procedure.

This procedure may be done in the OFF power mode.

1. Connect a scan tool to the vehicle in the pass-thru arrangement (TIS2000 will not work for this method).
2. On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Legacy Pass-Thru method. Select "VTD Vehicle Theft Deterrent Learn" under Component Replacement. Ensure that "Prepare RCDLR for key fob programming" is chosen.
3. If the vehicle can be powered up, turn the ignition on with the engine off. If the vehicle cannot be powered up, manually enter the VIN.
4. Select "VTD Vehicle Theft Deterrent Learn" under Component Replacement. Ensure that "Prepare RCDLR for key fob programming" is chosen.
5. At this point the scan tool must remain connected for the duration of the 10 minute relearn procedure.
6. When complete, select CONTINUE on the Tech 2, then exit out to the Vehicle Control Systems menu.
7. Use the scan tool to access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
8. Select INVALIDATE ALL FOBS and press the PROGRAM button.
9. The DIC will display a message: READY FOR FOB 1
10. Place the replacement key fob in the glove box pocket with the buttons facing right. A beep will occur indicating programming completion. The DIC will display a message: READY FOR FOB 2
11. If programming additional key fobs, repeat step 10, or press the DONE soft key on the scan tool to exit programming.
12. Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.
13. Clear any DTCs and remove the scan tool.

Transmitter Programming (New RCDLR ONLY)

This procedure requires the use of a scan tool. If a scan tool is not available, refer to the vehicle owners manual for fob programming procedures.

This procedure will add key fobs to a new RCDLR. You must have the previously known fobs (or new fobs) and a scan tool.

1. Place the fobs to be programmed to a new RCDLR in the cup holder.
2. Using the scan tool, access the following: Vehicle Control Systems Module Setup Remote Control Door Lock Receiver Program Key Fobs
3. Select INVALIDATE ALL FOBS and press the PROGRAM button.
4. The DIC will display a message: READY FOR FOB 1 (If the DIC is blank or displays PRESS OFF/ACC TO LEARN, the setup was already performed on the RCDLR. Use either Method 2 or 3 in Transmitter Programming to program the fobs).
5. Place a fob in the glove box pocket with the buttons facing right.
6. A beep will occur indicating the fob has been programmed. The DIC will display a message: READY FOR FOB 2.
7. If programming additional key fobs, repeat step 5, or press the DONE soft key on the scan tool to exit programming.
8. Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.
9. Clear any DTC's and remove the scan tool.

Garage Door Opener Description and Operation

The garage door opener (GDO) is fixed and rolling code capable. Rolling code is a system that allows the code that the customers receiver receives from the GDO to change every time the GDO is used within operating range of the receiver. Rolling code programming requires the customer to push a learn/program button on the GDO receiver at their home. This button is usually located on the receiver unit under a cover (light cover) on one end of the unit. The customer must follow the GDO manufacturers instructions to program/learn the receiver to accept the Universal Home Remote System as an authorized opener for their unit. When the receiver and the GDO are initially programmed together, a code is established and a new code is created for every new transmission. The software in the receiver recognizes the GDO and accepts the new code.

The GDO is compatible with most, but not all types and brands of transmitters. If a problem should occur with a compatibility conflict with a transmitter, refer to 1-866-572-2728.

The GDO is a transmitter operating between 288-399 MHz. The power and range of the transmitter is limited to comply with laws governing the generation of radio frequency interference (RFI). The transmitter is programmed by the user to accept the signal generated by the user's transmitters.

The GDO has 3 buttons that may be programmed for individual transmitter/receiver combinations to control up to 3 GDOs, security gates, lighting systems, etc. Each button represents a transmitter code section of the transmitter, which operates separately from any other button, and may be considered a separate transmitter. Operation consists of simply pressing a button to activate the corresponding transmitter.

Keyless Entry System Description and Operation - Active

The keyless entry system is a vehicle entry device. Use the keyless entry system in conjunction with the door locks to unlock a vehicle. The keyless entry will unlock/unlatch the vehicle doors or open the rear compartment lid when a corresponding button on the key fob is pressed. This is accomplished by the key fob sending a radio frequency to the remote control door lock receiver (RCDLR). The signal is received by the RCDLR via an internal antenna located within the RCDLR. Japan export vehicles are equipped with an external antenna. The RCDLR interprets the signal and activates the requested function via a class 2 message over the serial data line. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

Keyless entry allows you to operate the following components

1. The door locks
2. The rear compartment lid release
3. The illuminated entry lamps

The active keyless entry system has the following components

1. The #1-#4 keyless entry transmitters
2. The remote control door lock receiver (RCDLR)
3. External antenna (Japan export only)

Keyless Entry System Description and Operation - Passive

The passive keyless entry allows you to enter a locked vehicle without pressing any button on the key fob transmitter. You must only have the fob with you. This passive system is also part of the vehicle starting system. It allows you to start and run the vehicle having only the fob as your key. The passive entry and starting system use low frequency antennas in 4 different areas on the vehicle to determine the location of the key fob to the vehicle. When passively opening a locked door or a rear compartment lid, you must have a programed key fob with you in your pocket/purse/breifcase. As a customer presses an exterior door handle switch or exterior rear compartment lid release switch, the low frequency antenna sends out a challenge to the key fob. The key fob must be in a one meter range of the door or rear compartment lid that the customer is opening in order to receive the challenge. If the challenge from the low frequency antenna is met, the key fob will respond to the remote control door lock receiver (RCDLR) via a radio frequency signal allowing the door to be unlocked and opened. Starting the vehicle also works in the same manner. The key fob must be within the passenger compartment of the vehicle when the Start/ACC/OFF button is pressed. The low frequency antenna sends a challenge to the key fob and if the challenge is met, the fob will respond to the RCDLR. The RCDLR will then send out a fuel enable password to the engine control module (ECM). As long as all security requirements are met and the ECM receives the password over the serial data line, the engine will start and run. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

The passive keyless entry has the following components

1. The transmitters, up to 4 total
2. The RCDLR
3. The keyless entry antenna - left, located in the lower B-pillar area at door height
4. The keyless entry antenna - Right, located in the lower B-pillar area at door height
5. The keyless entry antenna - rear, located in the rear compartment area near the rear compartment lid latch
6. The keyless entry antenna - back up, located inside the passenger compartment inside the glove box area

Keyless Entry Transmitters

The keyless entry transmitters are used to passively or actively lock and unlock the vehicle. When any one of the 4 allowable programmed key fobs are challenged by a keyless entry antenna by depressing either of the exterior door open switches, the transmitters will passively send an RF signal to the remote control door lock receiver (RCDLR) via the door antennas. The RCDLR will then interpret this communication and either allow entry into the vehicle, or deny it.

Keyless Entry Antennas

The keyless entry antennas are used to transmit and receive RF communication with the keyless entry transmitters when accessing the vehicles doors or rear compartment.

The antennas are controlled by the remote control door lock receiver (RCDLR). When an exterior door handle switch or exterior rear compartment lid release switch is pressed, the respective antenna sends out a challenge to the transmitter, which begins the passive entry communications.

The keyless entry antenna backup is located in the glove box area. It has a small pocket next to it where the key fob can be inserted if the key fobs battery is dead, weak or the radio frequency (RF) signal is being jammed.

The purpose of the keyless entry antenna backup is to send a low frequency RF challenge to a programmed key fob, inside the interior of the vehicle, when the start button is pressed. The keyless entry antenna backup is controlled by the RCDLR.

Remote Control Door Lock Receiver (RCDLR)

The RCDLR is a multi-function module located in the center of the dash panel. The keyless entry antennas are controlled by the RCDLR to allow passive vehicle entry, as well as vehicle starting and vehicle theft deterrent operations. The RCDLR will send an AC voltage signal and provide ground to the keyless entry antenna when an exterior door handle switch, exterior rear compartment lid release, or the Start/Acc/Off switch is depressed. This will enable the keyless entry antenna to send out a low frequency broadcast challenge to a key fob in range. The RCDLR also has an internal radio frequency (RF) antenna to receive the key fobs passively or actively sent signal.

Starting the Vehicle/ACC mode

To start a vehicle you must have a valid key fob present within the passenger compartment of the vehicle, the brake pedal depressed and the transmission in Park or Neutral. If there are no problems with key fob detection, the vehicle will be able to be started or put into accessory mode when the Start/ACC/OFF mode button is pressed. If a key fob is not detected or the radio frequencies are being interrupted, a message will display on the driver information center (DIC) stating NO FOB DETECTED. A NO FOB DETECTED message may be caused by a low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference. A NO FOB DETECTED message caused by an aftermarket device or high RF traffic is considered normal and does not require the replacement of any components. Replacing components in these situations will typically not increase the performance of the system. Simply moving the fob to a different location inside the vehicle may allow key fob communication to continue. If moving the key fob within the vehicle does not correct the message, a pocket is located in the glove box for the key fob to slide into. The key fob must be inserted into the pocket bottom edge first with the buttons facing towards the passenger side of the vehicle. With the key fob inserted into the pocket correctly, a low frequency coupling will occur between the key fob and the antenna when the Start mode or ACC/OFF mode button is pressed. This procedure will put the vehicle in limp home mode and allow the vehicle to be operated.

Ignition ON Engine OFF mode

This mode is used to have all modules powered up and communicating on the serial data line. In order to achieve this mode the customer must have a valid key fob within the passenger compartment of the vehicle, the brake pedal depressed, and the transmission in Park or Neutral. Once that criteria is met, the customer must press and hold for 5 seconds the ACC/OFF portion of the Start/ACC/OFF mode button. The vehicle will power up with the engine OFF. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

Turning OFF the Vehicle

When a vehicle is in a normal RUN mode, the key fob should already be present within the passenger compartment. To switch the vehicle to OFF mode, press the ACC/OFF portion of the Start/ACC/OFF mode button and the vehicle will power OFF. If a key fob is not detected or the radio frequencies are being interrupted, a message will display on the driver information center (DIC) stating NO FOB DETECTED. A NO FOB DETECTED message may be caused by a low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference. For a vehicle to transition to the OFF mode, automatic transmissions must be placed in Park and manual transmissions must be placed in Reverse. If the transmission is not in Park (automatic transmissions) or Reverse (manual transmissions) when the OFF button is pressed, the engine will shut off, but the vehicle will remain the ACC mode. Should this occur, vehicles equipped with an automatic transmission will automatically switch to the OFF mode after approximately 10 minutes. Vehicles equipped with a manual transmission, however, will not transfer out of the ACC mode. Manual transmission vehicles will remain in the ACC mode which will cause a parasitic battery draw. Vehicles left in this ACC mode state are considered to still have the fob in the vehicle and may be started without a fob should the operator exit the vehicle.

While in normal RUN mode if the key fob is removed from the vehicle it will not stall; the vehicle will continue to run as normal. However, if the vehicle is attempted to be powered OFF with no key fob present, the driver information center (DIC) will display a message to the customer stating NO FOB, OFF or RUN? At this point the customer has a final opportunity to continue to run the vehicle. Once a running vehicle is powered OFF with out a key fob present, the vehicle will not be able to be restarted until a valid key fob is present. On a normal power OFF, if the customer is exiting the vehicle and the key fob is left in the passenger compartment, the horn will chirp three times alerting the customer the key fob has been left in the vehicle. This feature can be turned On/Off through DIC personalization.

Unlock Driver Door Only - Active

Momentarily press the key fob UNLOCK button in order to perform the following functions

1. Unlock only the driver door.
2. Illuminate the interior lamps for approximately 40 seconds, or until the ignition is turned ON.
3. Flash the exterior lights, if selected ON in personalization.
4. Disarm the content theft deterrent (CTD) system, if equipped.
5. Deactivate the CTD system when in the alarm mode.

Unlock All Doors - Second Operation - Active

Momentarily press the key fob UNLOCK button a second time, within 4 seconds of the first press, to perform the following functions

1. Unlock the remaining doors.
2. Illuminate the interior lamps for approximately 40 seconds, or until the ignition is turned ON.
3. Flash the exterior lights, if selected ON in personalization.
4. Chirp the horn.

Unlock Driver Door Only - Passive

Approach the drivers door with a valid key fob to perform the following functions

1. Unlock only the driver door when the driver door handle pad is pressed.
2. Disarm the content theft deterrent (CTD) system, if equipped.
3. Deactivate the CTD system when in the alarm mode.

Unlock All Doors - Passive

Approach the drivers door with a valid key fob to perform the following functions

1. Unlock the driver and passenger door when the driver side door handle is pressed; this feature may be turned On/Off through personalization.
2. Disarm the content theft deterrent (CTD) system, if equipped.
3. Deactivate the CTD system when in the alarm mode.

or

Approach the passenger door with a valid key fob to perform the following functions

1. Unlock the passenger and driver door when the passenger side door handle is pressed.
2. Disarm the content theft deterrent (CTD) system, if equipped.
3. Deactivate the CTD system when in the alarm mode.

Lock All Doors - Active

Press the key fob LOCK button to perform the following functions

1. Lock all vehicle doors. Immediately turn off the interior lamps.
2. Flash the exterior lights, if selected ON in personalization.
3. Arm the content theft deterrent (CTD) system.

Lock All Doors - Passive

With passive locking enabled in the DIC personalization, exit the vehicle with the key fob to perform the following functions

1. Lock all vehicle doors, if selected On in personalization.
2. Chirp horn, is selected ON in personalization.
3. Arm the content theft deterrent (CTD) system.

Rear Compartment Lid Release - Active

If the vehicle transaxle is in PARK or NEUTRAL and the ignition is in the OFF position, a single press of the key fob rear compartment release button will open the rear compartment lid.

Rear Compartment Lid Release - Passive

Approach the rear of the vehicle with a valid key fob, push the rear compartment open pad the rear compartment lid will open.

Keyless Entry Personalization

The following items may be personalized through the DIC for Driver 1 or Driver 2

1. Flash at unlock, Yes/No
2. Flash at lock, Yes/No
3. Fob reminder, On/Off
4. Passive door locking, Off/Silent/Horn
5. Passive door unlock, Driver/Both

Key fobs programmed for Driver 1 and Driver 2 can be programmed to recall personalization features. When the vehicle is accessed with the 3rd or 4th programmed fob, OPTIONS NOT AVAILABLE is displayed on the DIC. With the 3rd or 4th programmed fobs, personalization settings can be changed only for the ignition cycle. None of the personalization settings selected or changed can be recalled with the 3rd or 4th programmed key fob. Accessing the vehicle with any key fobs not programmed for Driver 1 or Driver 2 causes the OPTIONS NOT AVAILABLE message to display on the DIC. For more information on programming instructions and personalization, refer to the Owners Manual.

Low Fob Battery Message

A LOW FOB BATTERY message may be seen on the DIC when the fob's battery voltage has been lower than 2.6 volts for three consecutive ignition cycles (OFF to ACC or OFF to RUN). The RCDLR monitors the voltage of each fob independently; however, if two fobs are present when starting the vehicle, the voltage will be monitored only on the fob that starts the vehicle. For example, if Fob 1 enters from the driver door and Fob 2 enters from the passenger door, the RCDLR will monitor only Fob 1. To determine the fob being monitored, check which driver ID is present when the vehicle is started. The driver ID will correspond with the fob being monitored.

Fob battery voltage may also be observed using the scan tool. The scan tool displays the actual battery signal voltage, as well as the low voltage signal. These parameters may be used to determine which fob has caused the LOW FOB BATTERY message to be displayed.

Special Tools

Illustration Tool Number/Description J 41540 Universal Home Remote Tester J 43241 Keyless Entry Tester

Scheme 23

See also:
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• Component Connector End Views
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Checking Aftermarket Accessories
• Power Door Latch System Malfunction
• Instrument Panel Compartment Replacement
• Tire and Wheel Removal and Installation
• Rear Wheelhouse Panel Liner Replacement
• Rear Compartment Rear Center Trim Panel Carpet Replacement
• Fastener Caution
• Sunshade Replacement
• DTC B3119
• Garage Door Opener Description and Operation
• Special Tools
• Transmitter Programming (N. America and Japan, except Canada)
• Transmitter Programming (Canada and Europe)
• Transmitter Programming (New RCDLR ONLY)
• Passive Transmitter Malfunction
• Antenna Circuit Malfunction
• Method 2 - Replacing Key Fobs (No Known Key Fob Available)
• Method 2 - Service Programming System Fob Programming (No Known Key Fob Available)