B1893 - Power Liftgate Control Circuit 2 Open: Notes

For a complete wiring diagram, refer to appropriate Wiring Diagram

• >>When Monitored:<< Whenever the power liftgate is power opening or power closing.
• >>Set Condition:<< When the power liftgate module senses no current on the liftgate close driver circuit and no liftgate movement, this code will set. It is also possible for this code to set if the liftgate has been run several times and the internal circuit breaker (thermo protection device) has opened up.

Possible Causes
Q89 LIFTGATE CLOSE DRIVER CIRCUIT OPEN
Q88 LIFTGATE OPEN DRIVER CIRCUIT OPEN
POWER LIFTGATE DRIVE UNIT
POWER LIFTGATE MODULE

Test Step 1 - DTC Present

• With the scan tool, record DTCs.
• Erase DTCs
• Turn the ignition OFF, wait 10 seconds, then turn the ignition ON.
• If possible, operate the liftgate several times.
• With the scan tool, check for DTCs.

Does the scan tool display B1893- Power Liftgate Control Circuit 2 Open?

Yes

• Go to Test Step 2 Test Step 2 - Power Liftgate Module .

No

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
• Perform the Body Verification Test. Refer to BODY VERIFICATION TEST .