P060B
Internal Control Module A/D Processing Performance
ECM/PCM internal
Generic OBD-II
High
What it means
P060B means the engine control module has detected an internal fault in its own analog-to-digital (A/D) processing — the part that converts sensor voltages into digital values it can use. Because the computer can no longer fully trust its own readings, it may enter limp mode or run erratically. Confirm power, grounds, and software before condemning the module.
High
Can I keep driving? Limit driving — an internal computer fault can put the engine into limp mode or cause stalling, and sensor readings may be unreliable until it's diagnosed.
Common symptoms
What you'll notice
- Check-engine light on
- Reduced power or limp mode
- Erratic engine behavior or stalling
- Other sensor codes may set at the same time
Common causes
Most likely first
- Internal fault in the engine control module's analog-to-digital processingLikely
- Poor ECM power supply or ground connectionsCommon
- Corroded or damaged ECM connectorsCommon
- Corrupted or outdated ECM softwareLess often
How to diagnose & fix
Work through it in order
- Read all stored codes and freeze-frame data; this is an internal-module code, so start by ruling out external causes.
- Inspect and clean the ECM power and ground connections — poor grounds are a common trigger for internal-processing faults.
- Check the ECM connectors for corrosion, water intrusion, or bent pins.
- Check for a manufacturer software update/reflash for the ECM.
- If the fault persists with good power, grounds, and software, the ECM likely needs replacement and programming.
FAQ
Quick answers
Is it safe to drive with P060B?+
Not for long. This flags an internal fault in the engine computer's processing, which can trigger limp mode or stalling and make sensor data unreliable. Have it diagnosed before extended driving.
Can I just clear P060B?+
You can try, but internal-module codes usually return quickly. If it comes right back after clearing, the module or its power/ground supply needs attention.
Related codes
Often seen with P060B
Read & clear P060B yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX