Circuit/System Verification

In order to determine the best starting point to begin diagnosis first determine which features on the vehicle are functioning correctly or not. By performing a simple and quick check on the vehicle it can be determined if there is or isn't a fault in each feature. If any one part of the feature is faulty then the feature status is failed.

Match the status of all four features and go the suggested link to begin diagnosis.

Active Keyless Entry Verification

1. Ignition off, stand approximately 10 meters (33 feet) from the vehicle.
2. Verify that no other DTCs are set, as they could be the root cause of the issue.
   • If any of the DTCs are set 

     Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

   • Go to next step: If none of the DTCs are set 
3. Verify the keyless entry transmitter locks and unlocks the vehicle.
   • If the vehicle either does not lock or does not unlock 

     Refer to Keyless Entry System Malfunction .

   • Go to next step: If the vehicle locks and unlocks 
4. Verify the Front Side Door Access Control Transmitter locks and unlocks the vehicle.
   • Go to next step: If the vehicle either does not lock or does not unlock 

     Go to next step: Refer to circuit system testing below.

   • Go to next step: If the vehicle locks and unlocks 
5. All OK.

Keyless Entry Transmitter Status	Front Side Door Access Control Transmitter Status	Most Probable Diagnostic Starting Point
Passed	Passed	-
Passed	Failed	Front Side Door Access Control Transmitter
Failed	Passed	Keyless Entry Transmitter
Failed	Failed	Remote Function Actuator

Problem	Possible Cause	Solution
Keypad not programming via TIS2WEB	Wrong keypad part number is being used/installed	Verify correct part number
Keypad not programming via TIS2WEB	Decoded QR code (.csv file) received from TCSC not placed in 'USERS' file on technician computer	Place.csv file in USERS file per installation instructions. If placed correctly, TIS2WEB should initiate 10-minute program countdown when file is selected
When prompted by TIS2WEB that the keypad programming was Successful (post 10-minute program countdown), vehicle doors will not unlock with Master code	Wrong Master code entered Master code was entered too slowly	Confirm Master code on User/Wallet card (see sample user/wallet card below) included with every keypad kit Each Master code digit must be entered within 5 seconds of each other
Prompted by TIS2WEB that the keypad programming was Unsuccessful (post 10-minute program countdown)	Programming was unsuccessful	Repeat programming procedures via TIS2WEB
Kit does not contain User/Wallet card - QR code and Master code are unknown	User/Wallet card may be tucked in other paperwork contained in the kit	If original User/Wallet card cannot be located (see sample user/wallet card below) - QR code and Master code are NOT retrievable and keypad will need to be replaced with a new kit
Vehicle doors will not unlock with Master code or Personal code	Battery may be low or "bad" One or more keypad buttons may not be functioning/transmitting Wrong Master code or Personal code was entered	Test keypad battery by locking vehicle doors - Simultaneously press the 7/8 and 9/0 buttons - if the battery is "good", the vehicle doors will lock Press each keypad button and confirm the keypad LED or number backlighting illuminates with each button press Retrieve Master code from original user/wallet card (see sample user/wallet card below)
Master code and/or Personal code are unknown	User/Wallet card may be tucked in vehicle glove box, center console or vehicle owner's manual	If original User/Wallet card cannot be located (see sample user/wallet card below) or Master code is NOT retrievable - Keypad will need to be replaced with a new kit
Master code and/or Personal code are entered and driver's door unlocks, locks and unlocks again	LOW POWER WARNING - Keypad battery life (3 uses/day for 10 years) has exceeded lifetime expectancy	Keypad is weather-sealed for quality assurance and the battery cannot be replaced - Keypad will need to be replaced with a new kit