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Remote Transmitter Has Poor Range Performance

NOTE:

All remote transmitters must be present to begin diagnosis of the remote keyless entry (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.

SYMPTOM TROUBLESHOOTING CHART - REMOTE TRANSMITTER HAS POOR RANGE PERFORMANCE

PINPOINT TEST 6		THE REMOTE TRANSMITTER HAS POOR RANGE PERFORMANCE
STEP	INSPECTION		ACTION
1	CHECK FOR THE CORRECT REMOTE TRANSMITTERS Check that the correct remote transmitters are used with the vehicle. Make sure the remote transmitters are ones provided with the OEM system and not from an aftermarket system, or a dealer-installed system, that may have been installed on the vehicle. Are all the correct remote transmitters present?	Yes	Go to step 2.
1		No	The system cannot be tested without the correct remote transmitters. INFORM the customer that all the correct remote transmitters need to be present to proceed with diagnosis of the system.
2	CHECK ALL REMOTE TRANSMITTERS FOR POOR RANGE PERFORMANCE Check all remote transmitters for poor range performance (less than 3 m or 10 ft). Do all remote transmitters experience poor range?	Yes	Go to step 3.
2		No	Replace the inoperative remote transmitter and Reprogram all keyless entry remote transmitters. See REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any remote transmitters not present will need to be reprogrammed. Clear the DTCs. Test the system for normal operation.
3	CHECK THE LOCATION OF THE VEHICLE AND THE APPROACH ANGLES AROUND THE VEHICLE Make sure the poor performance is consistent in nature and is not from one approaching angle. The remote transmitter range performance may be degraded in certain locations. For example, if the vehicle is within 0.8 km (0.5 miles) of high-power devices or radio/TV towers, the operating distance of the transmitters may be reduced. Is the poor range performance consistent around the vehicle?	Yes	Go to step 4.
3		No	The system is operating correctly at this time. Clear the DTCs. Test the system for normal operation.
4	CHECK THE SMART JUNCTION BOX (SJB) FOR CORRECT OPERATION Disconnect all the SJB connectors. Check for: corrosion 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. Reprogram all keyless entry remote transmitters. See REMOTE KEYLESS ENTRY TRANSMITTER PROGRAMMING . INFORM the customer that any remote transmitters not present will need to be reprogrammed. Clear the DTCs. REPEAT the self-test.
4		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. Clear the DTCs. REPEAT the self-test.