U060A: Lost Communication With Manifold Absolute Pressure Sensor B

The vehicle bus reports loss of communication with smart MAP sensor B. Engine load calculation switches to a fallback model based on MAF and RPM.

Medium severity. Can I keep driving?It depends on which control module has dropped out. If it affects the engine, brakes, or steering, do not continue your trip: call for roadside assistance.

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

Most likely causes

Bus wiring open or shorted
Module without power or ground
Module failed

What to check, in order

Start with the simplest. You can tick off each step.

Check the battery and terminals, and read the codes from all control modules with a multi-system scanner
Identify which control module is not responding and check its fuses, power supply, and grounds
Disconnect add-on accessories, such as alarms or trackers, and read the codes again
Inspect the network connectors for moisture or bent pins
Measure the network's resistance and signal using the manufacturer's wiring diagram

Good to know

Repair difficulty: medium
It affects emissions.

What each character of U060A means

U: Communication network
0: Generic code: same on every make
6: Subsystem depends on the code range
0A: Specific fault in that system

Frequently asked questions

Can I keep driving with code U060A?

It depends on which control module has dropped out. If it affects the engine, brakes, or steering, do not continue your trip: call for roadside assistance.

What causes code U060A?

The most common causes are: bus wiring open or shorted; module without power or ground; module failed.

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.