Normal Operation

Remote locking and unlocking of the doors is accomplished by the smart junction box (SJB) receiving a command message from the remote keyless entry (RKE) transmitter. The SJB processes the command and provides voltage and ground to the door lock actuators. The RKE transmitter has a maximum operating range of 10 m (33 ft).

This pinpoint test is intended to diagnose the following:

High power devices
Aftermarket systems
TV/radio transmission towers
RKE transmitter
RKE transmitter battery
SJB
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.

REMOTE KEYLESS ENTRY TRANSMITTER POOR RANGE PERFORMANCE (PINPOINT TEST 7)

PINPOINT TEST 7		THE REMOTE KEYLESS ENTRY (RKE) TRANSMITTER HAS POOR RANGE PERFORMANCE
STEP	INSPECTION		ACTION
1	CHECK FOR THE CORRECT RKE TRANSMITTERS Check that the correct RKE transmitters are used with the vehicle. Make sure the RKE transmitters are the originals provided with the original equipment manufacturer (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 RKE transmitters present?	Yes	Go to next step.
1		No	The system cannot be tested without the correct RKE transmitters. INFORM the customer that all the correct RKE transmitters need to be present to proceed with diagnosis of the system.
2	CHECK ALL THE RKE TRANSMITTERS FOR POOR RANGE PERFORMANCE NOTE: The 3 m (10 ft) measurement of range is not the standard but is a guideline that clearly indicates a vehicle is experiencing poor range performance. Check all RKE transmitters for poor range performance (less than 3 m or 10 ft). Do all RKE transmitters experience poor range?	Yes	Go to step 4.
2		No	Go to next step.
3	CHECK THE RKE TRANSMITTER BATTERY Using a thin coin, open the 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	REPLACE the inoperative RKE transmitter. PROGRAM all RKE transmitters. See REMOTE KEYLESS ENTRY (RKE) TRANSMITTER PROGRAMMING . INFORM the customer that any RKE transmitters not present need to be programmed.
3		No	INSTALL a new battery (be sure the battery is seated correctly). DO NOT reprogram the RKE transmitters (damaged or dead batteries do not erase TICs from memory). CLEAR the DTCs. TEST the system for normal operation.
4	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 RKE 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 next step.
4		No	The system is operating correctly at this time. TEST the system for normal operation.
5	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. See . PROGRAM all RKE transmitters. See 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.
5		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.