Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Panic Mode Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Keyless Entry Schematics Connector End View Reference: Keyless Entry Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | With the keyless entry transmitter, attempt to operate the panic function. Do the horns and the headlamps pulse on and off? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Do any of the panic functions operate? | Go to Step 4 | Go to Keyless Entry System Inoperative |
| 4 | Do the headlamps pulse on and off? | Go to Diagnostic Starting Point - Horns in Vehicle DTC Information | Go to Diagnostic Starting Point - Lighting Systems in Vehicle DTC Information |
Panic Mode Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Keyless Entry Schematics Connector End View Reference: Keyless Entry Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | IMPORTANT: Two or more keyless entry transmitters are required to ensure proper system diagnostics. With each keyless entry transmitter, operate the keyless entry lock, unlock and panic functions.Do any of the available transmitters allow keyless entry function? | Go to Step 3 | Go to Step 4 |
| 3 | Remove the battery from the inoperative keyless entry transmitter. With a DMM, measure the battery voltage. Is the transmitter battery voltage greater than 2.8 volts? | Go to Step 11 | Go to Step 10 |
| 4 | Connect a scan tool to the vehicle. Disconnect the remote control door lock receiver (RCDLR) electrical connector. With a DMM, measure voltage at the keyless entry signal circuit. With a scan tool, go to RFA Link Output in the BCM Miscellaneous Outputs menu. Activate the RFA Link Output while observing the DMM. Is voltage measured on the keyless entry signal circuit? | Go to Step 5 | Go to Step 7 |
| 5 | Disconnect the RCDLR electrical connector. Connect a test lamp between the RCDLR battery positive voltage circuit and a good ground. Does the test lamp illuminate? | Go to Step 6 | Go to Step 13 |
| 6 | At the RCDLR electrical connector, connect a test lamp between the RCDLR battery positive voltage circuit and the ground circuit. Does the test lamp illuminate? | Go to Step 9 | Go to Step 14 |
| 7 | Test the keyless entry signal circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 17 | Go to Step 8 |
| 8 | Inspect for poor connections at the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs . Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
| 9 | Inspect for poor connections at the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs . Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
| 10 | Replace the transmitter battery. Refer to Transmitter Battery Replacement . Did you complete the replacement? | Go to Step 17 | |
| 11 | Replace the keyless entry transmitter. Did you complete the replacement? | Go to Step 17 | |
| 12 | Perform the transmitter programming procedure. Refer to Transmitter Programming . Was the programming procedure completed successfully? | Go to Step 17 | |
| 13 | Repair the open or short to ground in the battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 17 | |
| 14 | Repair the open in the ground circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 17 | |
| 15 | Replace the BCM. Refer to Control Module References for replacement, setup and programming information. Did you complete the replacement? | Go to Step 17 | |
| 16 | Replace the RCDLR. Refer to Control Module References for replacement, setup and programming information. Did you complete the replacement? | Go to Step 17 | |
| 17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
| IMPORTANT |
|---|
| Two or more keyless entry transmitters are required to ensure proper system diagnostics. |
Keyless Entry System Inoperative
Transmitter Programming
| IMPORTANT | All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. 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. |
- Install a scan tool.
- Use the scan tool in order to access the Body Control Module (BCM) Special Function or Module Setup: Program Key Fobs.
- Press the START soft key on the scan tool.
- Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
- Repeat the previous step in order to program up to 4 transmitters.
- Remove the scan tool.
- Operate the transmitter functions in order to verify correct system operation.
The keyless entry system is a supplementary vehicle entry device. Radio frequency interference or discharged batteries may disable the system.
Keyless entry allows you to operate the following features
- The door locks
- The rear compartment lid release-Press and release rear release button to activate.
- The illuminated entry lamps
- The panic alarm
- Remote start
The keyless entry system has the following main components
- The transmitters
- The body control module (BCM)
- The remote control door lock receiver (RCDLR)-When you press a button on the transmitter, the transmitter sends a signal to the RCDLR. The RCDLR receives the signal and sends a X Link serial data message requesting the appropriate function from the BCM.
Unlock Driver Door Only
Momentarily press the UNLOCK button in order to perform the following functions
- Unlock the driver door only.
- Illuminate the interior lamps for approximately 20 seconds or until the ignition is turned ON.
- Flash the park lamps if the ignition is turned OFF and the doors are closed.
- Identify the driver to the radio-The radio will then revert to the station presets, the last station, the last volume settings and the last playback mode used by that driver.
Lock All Doors
Press the LOCK button in order to perform the following functions
- Lock all of the doors.
- Immediately turn OFF the interior lamps.
- Flash the park lamps if the ignition is OFF and the doors are closed.
- Chirp the horn if the ignition is OFF and the doors are closed.
Panic Alarm Function
A single press of the panic button performs the following functions
- Illuminates the interior lamps
- Pulses the horn
- Flashes the daytime running lamps for 2 minutes or until the following conditions occur: The panic button is pressed again. The ignition switch is turned to the RUN position with a valid key.
Remote Vehicle Start
The Remote Vehicle Start function allows the customer to start the vehicle while not in the car. It also allows starting up the vehicle heating or air conditioning system and other vehicle systems to provide the customer with a comfortable vehicle when they enter it. The distance the customer can be away from the vehicle and operate this feature has a design requirement of 150 meters. The Remote Vehicle Start feature is started by the customer pressing and releasing the lock button and then pressing and holding the Remote Vehicle Start (RVS) buttons on their key fob. The turn signal lamps will flash if this feedback is enabled on to indicate the vehicle has received the Remote Start Request. Each time the customer does a remote vehicle start, the vehicle doors are locked, however they may then be unlocked/locked with the key fob or key at anytime. Once the vehicle has been started, there is visible feedback. There are vehicle conditions which will prevent a remote start, for example if the hood is not closed or the key is in the ignition. The Remote Vehicle Start feature once activated is allowed to run for 10 minutes. At any time during this 10 minute time the 10 minute time-out can be reset once. This feature is called a Remote Vehicle Start Continue. This allows a maximum of 20 minutes of engine running via the Remote Vehicle Start feature without a reset. If the Remote Vehicle Start Continue is done at 7 minutes into the initial 10 minute time-out, a total of 17 minutes of engine running would occur. A remote vehicle start, once active, can be stopped by pressing a dedicated RVS button on the key fob or by pressing the Vehicle Hazard switch located inside the vehicle. the following will also abort a remote start, using an invalid passkey, force rotating the ignition, force shifting out of park. Remote start will also be stopped if any DTCs that turn ON the SES/MIL are stored in history or current status.
Customer Programming Method for Enabling/Disabling the RVS Feature
Using the Driver Information Center (DIC), the Remote Vehicle Start (RVS) feature can be DISABLED and ENABLED just like other items programmable via the DIC. When a lock control, entry-remote entry, extended range (AP8) equipped vehicle has RVS added to it and the vehicle is not DIC equipped and the customer wants to disable RVS. The dealer will perform the DISABLED remote start function since the owner cannot perform the function on their own without a DIC.
Remote Vehicle Start Features That Allow A Remote Vehicle START/CONTINUE
- The remote vehicle start (RVS) feature must be enabled.
- A remote vehicle start request command is received by the body control module (BCM).
- The hood ajar switch status is closed.
- The number of remote start attempts is less than 3.
- The key is not in the ignition.
- The remote start voltages are within proper operating ranges 6-16 volts.
- There are no DTCs or serial data communication failures with RVS related systems.
- The transmission status is Park/Neutral and the vehicle speed is zero.
Conditions to Stop A Remote Vehicle Start
- Hood ajar switch status is - OPEN.
- Inserting the key in the ignition and turning the key to any non-off power modes and returning the key to the OFF position
- The remote vehicle start (RVS) time has elapsed or timed out.
- The RVS master receives a run abort message from the powertrain control module (PCM) or engine control module (ECM).
- Hazard shutoff switch status is - ACTIVE.
- By content theft deterrent (CTD) system, if equipped and alarm status becomes Violated
- RVS system voltage out of range, under 6 volts or over 16 volts
- DTCs set for any related systems or serial data communication failure for any modules that support the RVS function
If the RVS master stops a remote vehicle start for any of these conditions, further remote vehicle starting is not allowed until a RVS RESET has occurred.
A RVS Reset occurs when, in an ignition switch vehicle, the key is inserted and rotated into the Run position, power mode of RUN is seen and PCM Vehicle Theft Fuel Continue is received over serial data and passes VTD criteria.
This action results in resetting the RVS counters to MAX starts allowed and the RVS Attempts to 0.