B2935

Power Liftgate

Pinpoint Test I: DTC B2935

Normal Operation

During an Liftgate/Trunk Module (LTM) self-test, the LTM (Liftgate/Trunk Module) monitors the time it takes for the power liftgate to open and close.

- DTC B2935 (Drive Unit Failure)- an on-demand DTC that sets when the time to complete a LTM (Liftgate/Trunk Module) Self-Test cycle (power open and power close to fully latched position) exceeds 20 seconds.

This pinpoint test is intended to diagnose the following:

- Mechanical binding

- Power liftgate latch

- Power liftgate motor

PINPOINT TEST I : DTC B2935

I1 RETRIEVE THE DTCs FROM THE LTM (Liftgate/Trunk Module)

- Use the recorded Liftgate/Trunk Module (LTM) DTCs from the self-test.

Are any LTM (Liftgate/Trunk Module) DTCs present?

Yes
REFER to the Liftgate/Trunk Module (LTM) DTC Chart Trunk / Liftgate.

No
GO to I2.

I2 CHECK THE MANUAL OPERATION OF THE LIFTGATE

- Ignition ON.

- Turn the power liftgate off (disable) from the message center.

- NOTE: A small amount of interference during a manual operation will be amplified during a power operation and may cause the liftgate to not power open.
Manually unlatch the liftgate.


Does the liftgate unlatch correctly?

Yes
GO to I3.

No
INSTALL a new latch.

I3 CHECK THE MANUAL OPERATION OF THE LIFTGATE

- While manually opening and closing the liftgate, check the liftgate for:
- liftgate/wedge alignment.

- strut operation (struts should push liftgate open when beyond half open).

- power liftgate rod (should move freely while manually opening and closing liftgate and be securely mounted to the liftgate and bracket).

- hinges (should move freely).


Does the liftgate open and close correctly without any binding?

Yes
INSTALL a new power liftgate motor. REFER to Power Liftgate Motor . TEST the system for normal operation.

No
REPAIR as necessary. TEST the system for normal operation.