B1985

B1985 - Power Liftgate Latch Control 2 Circuit High






For a complete wiring diagram, refer to.

• When Monitored: Anytime the power liftgate is performing a power cinch or release operation.

• Set Condition: When the liftgate latch motor cinch or release output is pulled high prior to or during a latch cinch or release operation, this code will set.






Test Step 1 - DTC Present

• With the scan tool, record and erase DTCs.

• Turn the ignition OFF, wait 10 seconds, then turn the ignition ON.

• Operate the power liftgate several times if possible.

• With the scan tool, check for DTCs.

• If the B210E - Battery Voltage HIGH DTC is present, repair that code before proceeding.

Does the scan tool display B1985 - Power Liftgate Latch Control 2 Circuit High?

Yes

• Go to Test Step 2.

No

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Operate the liftgate several times and check for any binding conditions in the latch assembly.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Power Liftgate Module






• Turn the ignition OFF.

• Disconnect the power liftgate module C2 harness connector.

• Turn the ignition ON.

• Measure the voltage of the liftgate latch Cinch driver circuit.

Is there any voltage present?

No

• Replace the power liftgate module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Yes

• Go to Test Step 3.

Test Step 3 - Check the Liftgate Latch Cinch Driver Circuit for a Short to Voltage






• Disconnect the power liftgate latch harness connector.

• Measure the voltage of the liftgate latch cinch driver circuit.

Is there any voltage present?

Yes

• Repair the liftgate latch cinch driver circuit for a short to voltage.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the liftgate latch release driver circuit for a short to voltage.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior