Pinpoint Test H: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
Handles, 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 and unlocking the cargo doors is accomplished by the Generic Electronic Module (GEM) receiving a command message from the Remote Keyless Entry (RKE) transmitter. The GEM processes the command and energizes the appropriate relays to lock or unlock the doors.
The RKE transmitters and the GEM 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 the GEM every time an RKE transmitter button is pressed.
If the vehicle has been inactive for 22 days or longer, the RKE feature is switched off in the GEM to conserve battery power.
NOTE: The RKE is inoperative when the vehicle is in shipping mode (SHON displayed in the Instrument Cluster (IC)). Refer to the symptom chart in Instrumentation and Warning Chimes Testing and Inspection to exit shipping mode.
This pinpoint test is intended to diagnose the following:
- RKE transmitter battery
- RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle
- RKE transmitter programming
- RKE transmitter
- GEM
PINPOINT TEST H: THE RKE TRANSMITTER IS INOPERATIVE
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: All RKE transmitters must be present to begin diagnosis of the RKE system.
- NOTE: Make sure the RKE transmitters are those provided with the OEM system and not from an aftermarket system, or a dealer-installed system that may have been installed on the vehicle.
- Check that the correct RKE transmitters are used with the vehicle. Compare the RKE transmitters with the one shown in the Handles, Locks, Latches and Entry Systems Description and Operation information.
- Are all the correct RKE transmitters present?
Yes
GO to H2.
No
The system cannot be tested without all the correct RKE transmitters. INFORM the customer that all the correct RKE transmitters must be present to proceed with diagnosis of the system.
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H2 CHECK THE OPERATION OF THE RKE TRANSMITTER WITH THE KEY IN THE OFF POSITION
- Ignition OFF.
- Check the operation of the RKE transmitter.
- Does the system operate correctly now?
Yes
The system is operating correctly. INFORM the customer of the correct vehicle behavior.
No
GO to H3.
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H3 CHECK THE FUNCTIONALITY OF THE RKE TRANSMITTER
- Press each button on the transmitter.
- Does any button operate correctly?
Yes
GO to Pinpoint Test I. Pinpoint Test I: An Individual Button/Feature Is Inoperative From The Remote Keyless Entry (RKE) Transmitter
No
GO to H4.
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H4 CHECK THE RKE SYSTEM FOR NORMAL OPERATION WITH A SECOND TRANSMITTER
- Using the customer's second RKE transmitter that is correct for the vehicle, attempt to LOCK and UNLOCK the doors.
- Do the doors LOCK and UNLOCK with the second transmitter?
Yes
GO to H5.
No
GO to H9.
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H5 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 RKE transmitter is now synchronized.
No
GO to H6.
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H6 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 RKE transmitter is now synchronized.
No
GO to H7.
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H7 CHECK THE INOPERATIVE RKE TRANSMITTER BATTERY
- Open the inoperative RKE transmitter.
- Do not clean off any grease from the battery terminals on the back surface of the circuit board.
- Verify the correct battery is used (CR2032).
- Remove the RKE transmitter battery and measure the voltage.
- Is the voltage greater than 2.5 volts?
Yes
GO to H8.
No
INSTALL a new battery. DO NOT reprogram the RKE transmitters (weak or dead batteries do not erase TICs from memory). TEST the system for normal operation.
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H8 CHECK IF THE RKE TRANSMITTER IS PROGRAMMED
- Program all the RKE transmitters. Refer to Remote Keyless Entry (RKE) Transmitter Programming Remote Keyless Entry (RKE) Transmitter Programming.
- Check the inoperative RKE transmitter for correct operation.
- Does the inoperative RKE transmitter operate now?
Yes
The concern was caused by an unprogrammed RKE transmitter. INFORM the customer that any RKE transmitters not present need to be programmed.
No
REPLACE the inoperative RKE transmitter. PROGRAM all RKE transmitters. REFER to Remote Keyless Entry (RKE) Transmitter Programming Remote Keyless Entry (RKE) Transmitter Programming. INFORM the customer that any RKE transmitters not present need to be programmed. TEST the system for normal operation.
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H9 PROGRAM ALL OF THE RKE TRANSMITTERS
- Program all the RKE transmitters. Refer to Remote Keyless Entry (RKE) Transmitter Programming Remote Keyless Entry (RKE) Transmitter Programming.
- Check the RKE transmitters for correct operation.
- Do any of the RKE transmitters operate now?
Yes
The concern was caused by unprogrammed RKE transmitters. INFORM the customer that any RKE transmitters not present need to be programmed.
No
GO to H10.
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H10 CHECK THE GEM FOR CORRECT OPERATION
- Disconnect all the GEM connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the GEM 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 GEM. REFER to Multifunction Electronic Modules Service and Repair. 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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