Receiver Lock Circuit Failure
The receiver lock circuit is not functioning correctly.
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 is trying to keep the vehicle's doors and other parts locked but it's not getting the right signal back from the locking mechanism.
What the computer is actually seeing
The body control module (BCM) expects a voltage between 9-14 volts when the lock/unlock switch is activated. It should see a change in resistance or voltage indicating the position of the lock's motor or actuator.
What a healthy reading looks like
Expected voltage on the lock receiver circuit is 9-14 volts active; should drop below 1 volt or show a specific resistance when locked/unlocked.
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.
- 1Inspect the wiring and connectors for the lock system for corrosion or damage. Fix any found issues.
- 2Check the lock/unlock switch for proper operation and voltage output; should read 9-14 volts when switched on.
- 3Test the lock actuator for resistance; it should read between 10-30 ohms based on vehicle specs.
- 4If everything checks out, suspect a faulty BCM and perform a scan for further codes.
Common causes
- Faulty lock actuator
- Damaged wiring or connectors
- Issue with the body control module (BCM)
- Faulty lock/unlock switch
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's safe to drive, but you may have problems with vehicle locks.
Will this code come back after clearing?
If the issue isn't fixed, the code will likely return.
Why does it pair with other C150X codes?
The C1500 series codes are often related to the same locking mechanism or system issue.
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