U0495 code meaning
Invalid Data Received From Digital Audio Control Module B
What U0495 means
U0495 is the invalid-data code for a second digital audio unit, module B. Where slot A is used at all, it tends to be the digital or satellite radio receiver, as in GM's Saab lists; for B no public code list or bulletin names a concrete device, and no maker documents U0495. The partner U0194 does appear in GM bulletin 15-NA-004 (2013-2016 Acadia), but only as one of eleven lost-contact codes traced to a low-speed LAN lead crushed by the rear climate duct in the headliner, which reveals nothing about module B itself. A stored U0495 should therefore first be checked against the vehicle's own module list, then software levels and the bus link. At worst one digital audio source is missing; no MIL.
U0495 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0495
- One digital audio source unavailable
- Often stored together with other network codes
Common causes of U0495
- PossibleCoding or software mismatch about which device occupies slot B
- PossibleDamaged or pinched bus wiring disturbing several modules
- Less likelyInternal fault of digital audio module B
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Digital audio module b
What each part of U0495 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 95 | The exact fault in that area. |
What to do next
- Note U0495 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 U0495
What does U0495 mean?
U0495 means "Invalid Data Received From Digital Audio Control Module B". U0495 is the invalid-data code for a second digital audio unit, module B. It is a generic code, so it means the same on every make.
Is it safe to drive with U0495?
U0495 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0495 fail an emissions test?
U0495 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0495 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will U0495 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.