Lost Communication with Cruise Control Module
The vehicle's main computer can't communicate with the cruise control module.
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)
This code means your main vehicle computer isn't getting any signals from the cruise control module, which could be due to a wiring issue or the module itself not working.
What the computer is actually seeing
The main control unit expects to receive data from the cruise control module about speed, control inputs, and settings. If it doesn't get these signals within a specific timeframe, it triggers this code.
What a healthy reading looks like
The main computer should receive a signal from the cruise control module at least every 10 milliseconds. If no signal is detected for over 100 milliseconds, this code will set.
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 wiring and connectors for the cruise control module. Look for signs of fraying or corrosion.
- 2Test the voltage at the cruise control module connector. You should see around 12 volts with the ignition key on.
- 3Inspect the cruise control module itself for any signs of damage or debris.
- 4If the wiring and module check out, use a scan tool to see if there are any software updates available for the vehicle's ECU.
Common causes
- Wiring harness damage or disconnect
- Faulty cruise control module
- Poor electrical connection at the module or ECU
- Software glitch in the vehicle control system
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but cruise control may not work until the issue is resolved.
Can this code come back after fixing?
If the underlying issue isn't addressed, like an intermittent fault, it could return.
Why does this code appear with other codes?
Multiple codes can indicate a common issue, such as wiring problems affecting multiple modules.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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