B1955 - Power Liftgate Latch Release Overcurrent: Notes

Fig 1: Power Liftgate Latch Release Overcurrent

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

For a complete wiring diagram, refer to appropriate Wiring Diagram

>>When Monitored:<< Whenever the power liftgate is performing a power releasing operation.
>>Set Condition:<< The latch motor stall current of over seven amps has been detected for over 300ms. with no ratchet or secondary switch transition.

Possible Causes
BINDING LIFTGATE
WEAK OR DETERIORATED LIFTGATE SEAL
Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT TO VOLTAGE
Q76 LATCH SECONDARY POSITION SENSE CIRCUIT OPEN
Q85 LIFTGATE LATCH RELEASE CIRCUIT SHORT TO VOLTAGE
Q901 LOGIC GROUND CIRCUIT OPEN
G78 LIFTGATE AJAR SWITCH SENSE CIRCUIT OPEN
LATCH ASSEMBLY

Test Step 1 - DTC Present

NOTE:

If there are any other power liftgate DTCs present, repair them before proceeding with this test.

Ensure the liftgate is closed and with the scan tool, run the "latch Home Position Test" before proceeding to ensure the latch is positioned correctly.
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, read active DTCs.

Does the scan tool display B1955 - Power Liftgate Latch Release Overcurrent?

Yes

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 or other obstructions.
Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .