• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

When calibrating the liftgate position, the liftgate control module is placed in a functional state to learn the liftgate travel limits. DTC B1019 00 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 liftgate control module, the liftgate control module will exit calibration mode and DTC B1019 00 become a history code.

The system voltage is 9–18 V.

Whenever the liftgate control module is replaced or in learn mode.

Inputs to the power liftgate may be disabled during the relearn procedure

• The DTC will be current until the liftgate calibration procedure has been completed.
• When the calibration procedure has been completed the DTC will be a history DTC.

Setting B1019 00 is normal after programming the liftgate control module. This DTC will be current after programming and the DTC will go to history after learning. This is a normal behavior by design and is not necessary to replace the liftgate control module.

Liftgate Schematics

Master Electrical Component List

Liftgate Description and Operation

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Control Module References for scan tool information

1. Ignition ON.
2. Perform the Liftgate Calibration. The K39 Liftgate Control Module should learn the travel limits, exit the calibration mode, and B1019 00 will become a history code.
• If the K39 Liftgate Control Module does not exit the calibration mode or if B1019 00 does not become a history code.

  Replace the K39 Liftgate Control Module

• If the K39 Liftgate Control Module does exit the calibration mode and B1019 00 becomes a history code.
3. All OK.

Perform the Diagnostic Repair Verification after completing the repair

Control Module References for liftgate control module replacement, programming setup