Pinpoint Test H: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
Handles, Locks, Latches and Entry Systems
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 (Generic Electronic Module) processes the command and energizes the appropriate relays to lock or unlock the doors.
The RKE (Remote Keyless Entry) transmitters and the GEM (Generic Electronic Module) also utilize a rolling code to prevent the code from being "captured" by a code grabber. The system advances the counter in the RKE (Remote Keyless Entry) transmitter and the GEM (Generic Electronic Module) every time an RKE (Remote Keyless Entry) transmitter button is pressed.
If the vehicle has been inactive for 22 days or longer, the RKE (Remote Keyless Entry) feature is switched off in the GEM (Generic Electronic Module) to conserve battery power.
NOTE: The RKE (Remote Keyless Entry) is inoperative when the vehicle is in shipping mode (SHON displayed in the Instrument Cluster (IC)). Refer to the symptom chart in Instrument Panel, Gauges and Warning Indicators to exit shipping mode. Symptom Related Diagnostic Procedures
This pinpoint test is intended to diagnose the following:
- RKE (Remote Keyless Entry) transmitter battery
- RKE (Remote Keyless Entry) transmitter button pressed a substantial amount of times while outside the range of the vehicle
- RKE (Remote Keyless Entry) transmitter programming
- RKE (Remote Keyless Entry) transmitter
- GEM (Generic Electronic Module)
PINPOINT TEST H : THE RKE (Remote Keyless Entry) TRANSMITTER IS INOPERATIVE
NOTE: Aftermarket or dealer-installed systems may adversely affect the RKE (Remote Keyless Entry) system operation. These systems should be disconnected before diagnosing any RKE (Remote Keyless Entry) concerns.
H1 CHECK FOR THE CORRECT RKE (Remote Keyless Entry) TRANSMITTERS
- NOTE: All RKE (Remote Keyless Entry) transmitters must be present to begin diagnosis of the RKE (Remote Keyless Entry) system.
NOTE: Make sure the RKE (Remote Keyless Entry) 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 (Remote Keyless Entry) transmitters are used with the vehicle. Compare the RKE (Remote Keyless Entry) transmitters with the one shown in the Handles, Locks, Latches and Entry Systems Description and Operation portion.
Are all the correct RKE (Remote Keyless Entry) transmitters present?
Yes
GO to H2.
No
The system cannot be tested without all the correct RKE (Remote Keyless Entry) transmitters. INFORM the customer that all the correct RKE (Remote Keyless Entry) transmitters must be present to proceed with diagnosis of the system.
H2 CHECK THE OPERATION OF THE RKE (Remote Keyless Entry) TRANSMITTER WITH THE KEY IN THE OFF POSITION
- Ignition OFF.
- Check the operation of the RKE (Remote Keyless Entry) 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.
H3 CHECK THE FUNCTIONALITY OF THE RKE (Remote Keyless Entry) 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.
H4 CHECK THE RKE (Remote Keyless Entry) SYSTEM FOR NORMAL OPERATION WITH A SECOND TRANSMITTER
- Using the customer's second RKE (Remote Keyless Entry) 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.
H5 RESYNCHRONIZE THE INOPERATIVE RKE (Remote Keyless Entry) TRANSMITTER
- Ignition OFF.
- Press any button on the inoperative RKE (Remote Keyless Entry) transmitter 4 times consecutively within 30 seconds.
Does the RKE (Remote Keyless Entry) transmitter operate correctly now?
Yes
The RKE (Remote Keyless Entry) transmitter is now synchronized.
No
GO to H6.
H6 RESYNCHRONIZE THE INOPERATIVE RKE (Remote Keyless Entry) TRANSMITTER USING THE SECOND RKE (Remote Keyless Entry) TRANSMITTER
- Press any button on the operational RKE (Remote Keyless Entry) transmitter.
- Within 30 seconds, press a button on the inoperative RKE (Remote Keyless Entry) transmitter.
- Check the inoperative RKE (Remote Keyless Entry) transmitter for correct operation.
Does the inoperative RKE (Remote Keyless Entry) transmitter operate now?
Yes
The RKE (Remote Keyless Entry) transmitter is now synchronized.
No
GO to H7.
H7 CHECK THE INOPERATIVE RKE (Remote Keyless Entry) TRANSMITTER BATTERY
- Open the inoperative RKE (Remote Keyless Entry) 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 (Remote Keyless Entry) 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 (Remote Keyless Entry) transmitters (weak or dead batteries do not erase TICs (Transmitter Identification Codes) from memory). TEST the system for normal operation.
H8 CHECK IF THE RKE (Remote Keyless Entry) TRANSMITTER IS PROGRAMMED
- Program all the RKE (Remote Keyless Entry) transmitters. Refer to Remote Keyless Entry (RKE) Transmitter Programming .
- Check the inoperative RKE (Remote Keyless Entry) transmitter for correct operation.
Does the inoperative RKE (Remote Keyless Entry) transmitter operate now?
Yes
The concern was caused by an unprogrammed RKE (Remote Keyless Entry) transmitter. INFORM the customer that any
RKE (Remote Keyless Entry) transmitters not present need to be programmed.
No
REPLACE the inoperative RKE (Remote Keyless Entry) transmitter. PROGRAM all RKE (Remote Keyless Entry) transmitters. REFER to Remote Keyless Entry (RKE) Transmitter Programming . INFORM the customer that any RKE (Remote Keyless Entry) transmitters not present need to be programmed. TEST the system for normal operation.
H9 PROGRAM ALL OF THE RKE (Remote Keyless Entry) TRANSMITTERS
- Program all the RKE (Remote Keyless Entry) transmitters. Refer to Remote Keyless Entry (RKE) Transmitter Programming .
- Check the RKE (Remote Keyless Entry) transmitters for correct operation.
Do any of the RKE (Remote Keyless Entry) transmitters operate now?
Yes
The concern was caused by unprogrammed RKE (Remote Keyless Entry) transmitters. INFORM the customer that any
RKE (Remote Keyless Entry) transmitters not present need to be programmed.
No
GO to H10.
H10 CHECK THE GEM (Generic Electronic Module) FOR CORRECT OPERATION
- Disconnect all the GEM (Generic Electronic Module) connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the GEM (Generic Electronic Module) 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 (Generic Electronic Module). 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.