Pinpoint Test I: The RKE Transmitter Is Inoperative
NOTE:
All IKT
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.
- I1 CHECK FOR THE CORRECT RKE TRANSMITTERS
-
NOTE: Make sure the IKTs are the 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.
- Check that the correct IKTs are used with the vehicle.
- Are all the correct IKTs present?
- Yes : GO to I2.
- 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.
-
- I2 CHECK THE RECORDED SJB AND IC DTCs FROM THE SELF-TESTS
- Check the recorded results from the SJB and IC self-tests.
- Are any DTCs recorded?
- I3 RESYNCHRONIZE THE INOPERATIVE IKT
- Ignition OFF.
- Ignition ON.
- Leave the IKT key in the ON position for a minimum of 6 seconds.
- Start the vehicle.
- Does the vehicle start?
- Yes : GO to I4.
- No : REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to diagnose the Passive Anti-Theft System (PATS).
- I4 CHECK THE IKT OPERATION
- Ignition OFF.
- Press any button on the IKT .
- Does the IKT operate?
- Yes : The system is OK. CLEAR the DTCs. REPEAT the self-test.
- No : GO to I5.
- I5 MAKE SURE THE RKE TRANSMITTER SIGNAL IS BEING RECEIVED
- Enter the following diagnostic mode on the scan tool: SJB DataLogger.
- Press a button on the IKT while observing the SJB PID (TIC_LAST).
- Does the TIC show up on the scan tool screen when a button is pressed?
- Yes : GO to I6.
- No : GO to I7.
- I6 CHECK IF THE RKE TRANSMITTERS ARE PROGRAMMED
- Enter the following diagnostic mode on the scan tool: SJB DataLogger.
- Press a button on the IKT and compare the SJB PID (TIC_LAST) with the PIDs (TIC_1, 2, 3, 4, 7, 8, 9, or 10).
- Does the TIC displayed match any of the TICs stored in memory?
- Yes : GO to I8.
- No : PROGRAM all of the IKTs . REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) . INFORM the customer that any IKTs not present need to be programmed. TEST the system for normal operation.
- I7 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 : GO to I8.
- 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.
- I8 CHECK FOR NORMAL OPERATION WITH A KNOWN GOOD IKT
- Enter the following diagnostic mode on the scan tool: SJB DataLogger.
- Use the customer's second IKT , and press a button on the IKT while observing the SJB PID (TIC_LAST).
- Does the TIC show up on the scan tool when a button is pressed?
- Yes : REPLACE the inoperative IKT . PROGRAM the new IKT . REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) . TEST the system for normal operation.
- No : GO to I9.
- I9 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 MULTIFUNCTION ELECTRONIC MODULES . 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.