Monday, July 15, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 633


Verify DTC B3109, B3110, B3111, or B3112 are not set.



If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC



resets, replace the keyless entry transmitter.



Repair Instructions



Important: This vehicle may be equipped with the 2-Way Advanced Remote Start System. Vehicle equipped with the 2-Way Advanced



Remote Start System can be identified by an LCD screen on the keyless entry transmitter or a yellow label on the RCDLR. When servicing



the 2-Way Advanced Remote Start System, ensure that the correct parts are installed during replacement. Service parts for the 2-Way



Advanced Remote Start System can be found in the Accessory section of the parts manual.



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



Remote Control Door Lock Transmitter Programming (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless



Entry/Keyless Entry Transmitter/Testing and Inspection)



B3110



DTC B3109, B3110, B3111, or B3112



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC B3109 00



- Keyless Entry Transmitter 1 Low Battery



DTC B3110 00



- Keyless Entry Transmitter 2 Low Battery



DTC B3111 00



- Keyless Entry Transmitter 3 Low Battery



DTC B3112 00



- Keyless Entry Transmitter 4 Low Battery



Circuit/System Description



With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control



door lock receiver (RCDLR) along with the commanded keyless entry function.



Conditions for Running the DTC



A keyless transmitter button is pressed.



Conditions for Setting the DTC



The DTC sets after 3 consecutive low battery signals from the same programmed transmitter.



Action Taken When the DTC Sets



The keyless entry system is inoperative.



Conditions for Clearing the DTC



The DTC is cleared when a normal transmitter voltage signal is received from the programmed transmitter that set the DTC.



Diagnostic Aids



The keyless entry transmitter used in the 2-Way Advanced Remote Start System is unique to the system. When servicing or replacing a transmitter,



ensure that the correct transmitter is used. The correct transmitter part number can be found in the Accessory section of the parts catalog. Attempting

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