P060B code meaning
Internal Control Module A/D Processing Performance
Powertrain system Generic code P06xx codes Check engine light
What P060B means
The analog-to-digital converter turns every analog sensor voltage into a number, so a faulty converter can falsify many values at once. The module checks it by timing its start-up calibration (GM 6.6 L diesel: 0.30 s or longer is a fault), by converting fixed internal reference voltages (about 4.73–4.83 V must be read), by grounding a test channel that must then read near 0 V (Ford diesel: over 249 mV is a fault) and by comparing with a second converter. GM sets it in the first trip, Ford with the check engine and wrench lamps as a level 3 check; the module usually enters limp mode. Ford fixed an F-150 2.7 L case (with misfire codes) by reprogramming. GM also uses P060B in the brake module – then ABS warnings appear and the engine module is not the culprit. The old wording 'A and D' simply spelled out 'A/D'.
P060B at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P060B
- Check engine light, at Ford also the wrench lamp
- Reduced power or limp mode
- Several sensor or misfire codes at the same time
- ABS/ESC warning if the brake module set the code
Common causes of P060B
- Most likelyFaulty module software (update available)
- PossibleUnstable supply voltage or poor ground at the module (weak battery, voltage spikes)
- PossibleInternal defect of the converter or its chip
- Less likelyShorted sensor input pulling the converter reference
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Engine control moduleControl module power supplyControl module ground
What each part of P060B means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 6 | Area: computer (engine control module) and output circuits. |
| 0B | The exact fault in that area. |
What to do next
- Note P060B and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P060B
What does P060B mean?
P060B means "Internal Control Module A/D Processing Performance". The analog-to-digital converter turns every analog sensor voltage into a number, so a faulty converter can falsify many values at once. It is a generic code, so it means the same on every make.
Is it safe to drive with P060B?
Drive gently and only to a workshop. With P060B the car can go into limp mode (reduced power) to protect itself.
Will P060B fail an emissions test?
Yes, it can. P060B is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P060B to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P060B clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.