Keyless Entry System Training Failed
The keyless entry system has failed to complete its training process.
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)
Basically, the keyless entry system couldn't learn the signals from the key fob correctly, so it won't work properly.
What the computer is actually seeing
The Body Control Module (BCM) expects to see a successful response from the key fob during the initialization phase, usually within 1-2 seconds. If it doesn't receive this, it sets the B1597 code.
What a healthy reading looks like
The BCM expects to see a signal from the key fob transmitting at about 433 MHz during the training process, with a response time of less than 2 seconds for successful pairing.
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.
- 1Check the battery in the key fob; it should be above 3 volts.
- 2Inspect the connections and wiring to the BCM for signs of damage or corrosion.
- 3Using a scan tool, check for additional codes that might indicate a broader issue with the keyless entry system.
- 4Try reprogramming the key fob according to the manufacturer's instructions. If the issue persists, replace the key fob with a known good one.
Common causes
- Weak or dead key fob battery
- Faulty key fob
- Defective Body Control Module
- Poor wiring or connector issues
- Interference from other electronic devices
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's safe to drive, but the keyless entry system will not work until fixed.
Will this code come back after clearing it?
It can come back if the underlying issue isn't resolved, like a bad key fob or BCM.
Why does this code sometimes pair with B1596?
B1596 also relates to keyless entry issues, typically indicating problems with key fob registration or communication.
Working a real vehicle right now?
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