Rear Liftgate Drive Motor Position Sensor Circuit Range/Performance Problem
A problem has been identified with the rear liftgate position sensor.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer can't correctly read the position of the rear liftgate motor, so it doesn't know if it's open or closed properly.
What the computer is actually seeing
The body control module (BCM) monitors the position sensor in the liftgate motor which should show a specific resistance or voltage levels based on the gate's position.
What a healthy reading looks like
For an open liftgate, expect a voltage around 5V from the sensor; for closed, near 0V.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check for obvious issues: Look at the liftgate for any physical damage or obstructions.
- 22. Inspect wiring and connectors: Check the wiring harness for damage and ensure all connectors are tight and corrosion-free.
- 33. Measure battery voltage: Ensure the battery voltage is between 12.4V-12.8V. Look for any significant drop when operating the liftgate.
- 44. Check the liftgate position sensor's resistance: With the liftgate in various positions (open/closed), measure the resistance at the sensor connector. Compare against expected values (should vary significantly between positions).
- 55. If values are off, replace the position sensor. If good, check the BCM for faults.
Common causes
- Faulty liftgate position sensor
- Wiring issues like shorts or opens
- Bad connections at the motor or sensor
- Battery voltage problems impacting sensor function
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive the vehicle with this code?
Yes, but the rear liftgate may not function properly until fixed.
Will this issue come back after clearing the code?
If the underlying issue isn't resolved, it's likely to return.
Why does this code appear with other codes?
They may all relate to liftgate issues, indicating a common electrical fault.
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