U042D: Invalid Data Received From Active Vibration Control Module

What it means

A receiving module detected implausible data from the active vibration control module (active engine mounts / electric counter-vibration). Command vs. actual values fail plausibility checks and are rejected.

How it works

The active vibration control module manages equipment such as active engine mounts or electric counter-vibration systems, depending on the vehicle. U042D is set when another module rejects its reported or commanded vibration-control data as implausible, which can result from a module or input fault, incompatible software, or gateway routing trouble.

Common causes

Most likely first.

1. Module internal fault or sensor input drift
2. Software version mismatch after replacement
3. Gateway module routing CAN messages incorrectly

Symptoms

• Multiple warning lights may illuminate
• Affected modules may go into limp mode or shut down
• Specific functions inoperative depending on module
• Diagnostic tools may show communication faults

How to diagnose it

1. Scan all modules and review freeze-frame data to find which module rejected the active vibration control data and whether communication faults are also present.
2. Note whether unusual engine vibration or a warning began after work on the mounts, control module, or vehicle software.
3. Inspect the active vibration control module, mount or actuator connectors, gateway, and visible CAN wiring for damage, corrosion, or loose connections.
4. Use a scan tool to compare commanded and reported mount or vibration-control states where those data are available.
5. Check software compatibility and network routing, then test the module and its inputs using the manufacturer's procedures.

Common fixes

• Repair loose or damaged connectors and wiring at the active vibration control module or its actuators.
• Replace a failed active mount or actuator if testing confirms it is not responding correctly.
• Correct a software or configuration mismatch after module replacement.
• Repair gateway routing or replace the active vibration control module if testing confirms an internal fault.

Can I keep driving?

If the vehicle otherwise drives normally, a short cautious trip may be possible, but expect increased vibration or reduced vibration-control function. Stop if vibration becomes severe or is accompanied by other powertrain warnings.