Pinpoint Test O: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance
Handles, Locks, Latches and Entry Systems - Integrated Keyhead Transmitter (IKT)
Pinpoint Tests
Pinpoint Test O: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance
Normal Operation
The Remote Keyless Entry (RKE) transmitter has a normal operating range of 10 m (33 ft). The RKE transmitter sends a radio frequency signal to the Smart Junction Box (SJB) based on the user selected RKE transmitter button. The SJB then carries out the selected action.
This pinpoint test is intended to diagnose the following:
- IKT
- IKT battery
- Aftermarket systems
- High power devices
- TV/radio transmission towers
- SJB
PINPOINT TEST O: THE RKE TRANSMITTER HAS POOR RANGE PERFORMANCE
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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O1 CHECK FOR THE CORRECT RKE TRANSMITTERS
- Check that the correct IKTs are used with the vehicle. Compare the IKTs with the one shown in Handles, Locks, Latches and Entry Systems Description and Operation in the Description and Operation.
- Are all the correct RKE transmitters present?
Yes
GO to O2.
No
The system cannot be tested without 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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O2 CHECK ALL THE RKE TRANSMITTERS FOR POOR RANGE PERFORMANCE
NOTE: The 10 m (33 ft) measurement of range is not the standard but is a guideline that clearly indicates a vehicle is experiencing poor range performance.
- Check all the RKE transmitters for poor range performance (less than 10 m [33 ft]).
- Do all RKE transmitters experience poor range?
Yes
GO to O4.
No
GO to O3.
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O3 CHECK THE IKT BATTERY
- Using a thin coin, open the IKT.
- 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 IKT battery and measure the voltage.
- Is the voltage greater than 2.5 volts?
Yes
REPLACE the inoperative IKT. PROGRAM the new IKT. REFER to Antitheft and Alarm Systems for the programming procedures. TEST the system for normal operation.
No
INSTALL a new battery. DO NOT reprogram the IKT (weak or dead batteries do not erase TICs from memory). TEST the system for normal operation.
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O4 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 RKE transmitters may be reduced.
- Is the poor range performance consistent around the vehicle?
Yes
GO to O5.
No
The system is operating correctly at this time. TEST the system for normal operation.
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O5 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. REFER to Body Control Systems. 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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