Pinpoint Test H: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
Locks, Latches and Entry Systems
Pinpoint Tests
Pinpoint Test H: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
Normal Operation
Remote locking and unlocking of the doors, activating the panic alarm, and releasing the luggage compartment lid latch is accomplished by the smart junction box (SJB) receiving a command message from the RKE transmitter through the Tire Pressure Monitoring System (TPMS)/Remote Keyless Entry (RKE) antenna. The SJB processes the command and provides the appropriate output. The RKE transmitters and SJB also utilize a rolling code to prevent the code from being "captured" by a code grabber. The system advances the counter in the RKE transmitter and SJB every time an RKE transmitter button is pressed.
The TPMS/RKE antenna is located externally on the SJB.
- DTC B2425 (Remote Keyless Entry Out of Synchronization) - a continuous DTC that sets when the SJB detects the rolling counter received from an RKE transmitter is 1,024 times or greater than the rolling counter stored in the module.
This pinpoint test is intended to diagnose the following:
- RKE transmitter battery
- RKE transmitter programming
- RKE transmitter
- RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle
- SJB
PINPOINT TEST H: THE REMOTE KEYLESS ENTRY (RKE) TRANSMITTER IS INOPERATIVE
NOTE: All RKE transmitters must be present to begin diagnosis of the RKE system.
NOTE: Aftermarket or dealer-installed systems may adversely affect the RKE system operation. These systems should be disconnected before diagnosing any RKE concerns.
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H1 CHECK FOR THE CORRECT RKE TRANSMITTERS
NOTE: Make sure the RKE transmitters are those provided with the OEM system and not from an aftermarket or a dealer-installed system that may have been installed on the vehicle.
- Check that the correct RKE transmitters are used with the vehicle.
- Are all the correct RKE transmitters present?
Yes
GO to H2.
No
The system cannot be tested without the correct RKE transmitters. INFORM the customer that all the correct RKE transmitters must to be present to proceed with diagnosis of the system.
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H2 CHECK IF THE RKE TRANSMITTER IS OUT OF SYNCHRONIZATION WITH THE SJB
- Check the recorded results from the SJB self-test.
- Is continuous DTC B2425 present?
Yes
GO to H3.
No
GO to H7.
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H3 RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER
- Ignition OFF.
- Press any button on the inoperative RKE transmitter 4 times consecutively within 30 seconds.
- Does the RKE transmitter operate correctly now?
Yes
The transmitter is now synchronized. CLEAR the DTCs. REPEAT the self-test.
No
GO to H4.
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H4 CHECK FOR A SECOND RKE TRANSMITTER
- Check for another RKE transmitter that operates with the vehicle.
- Is there another RKE transmitter that operates with the vehicle?
Yes
GO to H5.
No
GO to H6.
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H5 RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER USING THE SECOND RKE TRANSMITTER
- Press any button on the operational RKE transmitter.
- Within 30 seconds, press a button on the inoperative RKE transmitter.
- Check the inoperative RKE transmitter for correct operation.
- Does the inoperative RKE transmitter operate now?
Yes
The transmitter is now synchronized. CLEAR the DTCs. REPEAT the self-test.
No
GO to H6.
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H6 PROGRAM THE INOPERATIVE RKE TRANSMITTER OR ALL THE RKE TRANSMITTERS
- Program the inoperative RKE transmitter individually using a scan tool or program all RKE transmitters using the manual key cycle method. Refer to Remote Keyless Entry (RKE) Transmitter Programming Transmitter.
- Does the inoperative RKE transmitter(s) operate now?
Yes
The transmitter(s) is now synchronized. INFORM the customer that any RKE transmitters not present need to be programmed. CLEAR the DTCs. REPEAT the self-test.
No
GO to H7.
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H7 MAKE SURE THE RKE TRANSMITTER SIGNAL IS BEING RECEIVED
- Enter the following diagnostic mode on the scan tool: Remote Keyless Entry.
- NOTE: The remote keyless entry test is accessed through the scan tool by selecting Toolbox, Body, Security.
- Monitor the RKE Transmitter Identification Code (TIC) through the scan tool menus.
- Verify the RKE transmitter signal is being received. Press a button on the RKE transmitter while observing the scan tool.
- Does the TIC show up on the scan tool screen when a button is pressed?
Yes
GO to H8.
No
GO to H9.
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H8 DETERMINE IF THE RKE TRANSMITTERS ARE PROGRAMMED
- Enter the following diagnostic mode on the scan tool: Remote Keyless Entry.
- Monitor the RKE transmitter TIC/DATA through the scan tool menus.
- Verify the RKE transmitters are programmed to the vehicle.
- Does the TIC displayed under RKE transmitter match any of the TIC stored in memory?
Yes
GO to H10.
No
PROGRAM all the RKE transmitters. REFER to Remote Keyless Entry (RKE) Transmitter Programming Transmitter. INFORM the customer that any RKE transmitters not present need to be programmed. TEST the system for normal operation.
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H9 CHECK THE RKE TRANSMITTER BATTERY
- Using a thin coin, open the RKE transmitter.
- Do not clean off any grease from the battery terminal on the back surface of the circuit board.
- Verify the correct battery is being used (CR2032).
- Remove the RKE transmitter battery and measure the voltage.
- Is the voltage greater than 2.5 volts?
Yes
GO to H10.
No
INSTALL a new battery. Do not program the RKE transmitters (damaged or dead batteries do not erase TICs from memory). TEST the system for normal operation.
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H10 CHECK FOR NORMAL OPERATION WITH A KNOWN GOOD RKE TRANSMITTER
- Enter the following diagnostic mode on the scan tool: Remote Keyless Entry.
- Monitor the RKE transmitter TIC/DATA through the scan tool menus.
- Using the customer's second RKE transmitter or a known good RKE transmitter that is correct for the vehicle (and programmed to the vehicle), verify the RKE transmitter signal is being received.
- Does the TIC show up on the scan tool when a button is pressed on the RKE transmitter?
Yes
REPLACE the inoperative RKE transmitter. PROGRAM all the RKE transmitter(s). REFER to Remote Keyless Entry (RKE) Transmitter Programming Transmitter. INFORM the customer that any RKE transmitters not present need to be programmed. CLEAR the DTCs. REPEAT the self-test.
No
GO to H11.
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H11 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new SJB. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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