Vehicle Access

DTC B1019

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview)provides an overview of each diagnostic category.



DTC Descriptor
DTC B1019 00
- System Configuration Error




Diagnostic Fault Information






Circuit/System Description

When calibrating the liftgate position, the liftgate control module (LGM) is placed in a functional state to learn the liftgate travel limits. DTC B1019 will set automatically as an indicator that the system is in learn mode and not as a fault indicator. Once the travel limits are learned by the LGM, the LGM will exit calibration mode and DTC B1019 will clear. If the LGM does not exit learn mode, DTC B1019 will remain current and indicate a fault.


Conditions for Running the DTC

Battery voltage must be between 9-16 volts.


Conditions for Setting the DTC

DTC B1019 will set when the liftgate control module is replaced or reprogrammed.


Actions Taken When the DTC Sets

The liftgate control modules travel limits will be unlearned.


Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.
* You issue a scan tool CLEAR DTCs command.
* A history DTC will clear once 50 consecutive malfunction-free ignition cycles have occurred.



Diagnostic Aids

Whenever the LGM is disconnected or loses power, the ignition must be cycled OFF then ON.


Reference Information
Schematic Reference

Liftgate Schematics (Liftgate Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Liftgate Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)


Circuit/System Testing

Perform the Liftgate Calibration Procedure. Refer to Liftgate Calibration Procedure () . The liftgate module should learn the travel limits, exit the calibration mode, and DTC B1019 should clear.

If the liftgate module does not exit learn mode after the calibration attempt, replace the liftgate module.



Repair Instructions

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


Control Module References (Programming and Relearning)for LGM replacement, setup, and programming