B1956 - Power Liftgate Latch Release Excessive Time: Notes
For a complete wiring diagram, refer to appropriate Wiring Diagram
- >>When Monitored:<< Whenever the power liftgate is performing a releasing operation.
- >>Set Condition:<< The latch motor should perform its operation within 4 seconds. When it takes longer for the release operation, this code will set.
| Possible Causes |
|---|
| BINDING LIFTGATE |
| LOW BATTERY VOLTAGE |
| LATCH NOT IN HOME POSITION |
| Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT OPEN OR HIGH RESISTANCE |
| Q85 LIFTGATE LATCH RELEASE DRIVER CIRCUIT OPEN OR HIGH RESISTANCE |
| G78 LIFTGATE SWITCH SENSE CIRCUIT OPEN OR HIGH RESISTANCE |
| Q901 LOGIC GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| LATCH ASSEMBLY |
Test Step 1 - DTC Present
NOTE:
If there are any other power liftgate DTCs present, repair them before proceeding with this test.
NOTE:
Ensure the battery is fully charged and serviceable before proceeding.
- 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 B1956 - Power Liftgate Latch Release - Excessive Time?
Yes
- Go to Test Step 2 Test Step 2 - Binding Liftgate
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 or other obstructions.
- Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .