Pinpoint Test L: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance
Locks, Latches and Entry Systems
Pinpoint Tests
Pinpoint Test L: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance
Normal Operation
The Remote Keyless Entry (RKE) Integrated Keyhead Transmitter (IKT) sends a radio signal to the Smart Junction Box (SJB) based on the user selected IKT button. The SJB then carries out the selected action. The RKE transmitter has a normal operating range of 10 m (33 ft).
This pinpoint test is intended to diagnose the following:
- IKT
- IKT battery
- Aftermarket systems
- High power devices
- TV/radio transmission towers
- SJB
PINPOINT TEST L: THE RKE TRANSMITTER HAS POOR RANGE PERFORMANCE
NOTE: All IKTs must be present to begin diagnosis of the RKE system.
NOTE: Aftermarket or dealer-installed systems may adversely affect RKE system operation. These systems should be disconnected before diagnosing any RKE concerns.
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L1 CHECK FOR THE CORRECT IKTs
- NOTE: Make sure the IKTs are those provided with the OEM system and not from an aftermarket system or a dealer-installed system.
- Check that the correct IKTs are used with the vehicle.
- Are all the correct IKTs present?
Yes
GO to L2.
No
The system cannot be tested without the correct IKTs. INFORM the customer that all the correct IKTs must be present to proceed with diagnosis of the system.
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L2 CHECK ALL THE IKTs FOR POOR RANGE PERFORMANCE
NOTE: The 3m (10ft) measurement of range is not the standard but is a guideline that clearly indicates a vehicle is experiencing poor range performance.
- Check all the IKTs for poor range performance (3 m [10 ft] or less).
- Do all IKTs experience poor range?
Yes
GO to L4.
No
GO to L3.
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L3 CHECK THE IKT TRANSMITTER BATTERY
- Using a thin coin, open the IKT 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 IKT and PROGRAM all of the IKTs. REFER to Antitheft and Alarm Systems. INFORM the customer that any IKTs not present need to be programmed. TEST the system for normal operation.
No
INSTALL a new battery (make sure the battery is seated correctly). 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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L4 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 IKT 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 IKTs may be reduced.
- Is the poor range performance consistent around the vehicle?
Yes
GO to L5.
No
The system is operating correctly at this time. TEST the system for normal operation.
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L5 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. 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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