Network, generic

U0162 Lost Communication With Navigation Display Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0162 indicates that the navigation display, typically the screen unit of the head unit, no longer answers. Subaru documents it in two settings. TechTIPS 10/2015 describes a 2015 Legacy/Outback with Fujitsu Ten navigation that stored U0162 together with U0100, U0101 and U0122; the real cause was a wire not locked into the under-hood fuse box, which unseated the 30 A fuse feeding the IG2 relay. Bulletin 07-205-22 (2021 Crosstrek, 2020-22 Forester) has the rear vehicle detection module store U0162 and light the SRVD warning; new SRVD software improves CAN traffic with the head unit. U0163 is the navigation control unit, U0463 implausible display data. Map and screen may fail; no MIL.

Likely causes

Supply interrupted, e.g. loose terminal at the fuse box (Subaru TechTIPS)
Software of the receiving module, e.g. rear radar control unit (Subaru 07-205-22)
Connector behind the head unit loose after radio work
Navigation display or head unit faulty

Symptoms

  • Navigation screen dark or not responding
  • Rear vehicle detection warning lamp on (Subaru)
  • Several communication codes stored at once

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€20–1,500
Time0.3–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

navigation display modulecan bus wiring

Related codes

U0163U0463U016AU0184

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, en.wikipedia.org.