B1953 - Power Liftgate Latch Cinch Overcurrent: Notes
For a complete wiring diagram, refer to appropriate Wiring Diagram
- >>When Monitored:<< Whenever the power liftgate is performing a cinching operation.
- >>Set Condition:<< The latch motor stall current of 12 amps has been detected for over 500ms, with no ratchet switch transition.
| Possible Causes |
|---|
| BINDING LIFTGATE |
| LATCH NOT IN HOME POSITION |
| LOW BATTERY SYSTEM VOLTAGE |
| Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT TO GROUND |
| Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT to THE Q901 LOGIC GROUND CIRCUIT |
| Q85 LIFTGATE LATCH RELEASE DRIVER CIRCUIT SHORT TO GROUND |
| Q85 LIFTGATE LATCH RELEASE DRIVER CIRCUIT SHORT to THE Q901 LOGIC GROUND CIRCUIT |
| Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT to THE Q85 LIFTGATE LATCH RELEASE DRIVER CIRCUIT |
| Q84 LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT TO VOLTAGE |
| POWER LIFTGATE MODULE |
| LATCH ASSEMBLY |
Test Step 1 - DTC Present
- Ensure the battery is fully charged and vehicle charging system is operating properly.
- 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 B1953 - Power Liftgate Latch Cinch Overcurrent?
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 .