Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / B2827 — GPS Antenna Open State

B2827 — GPS Antenna Open State

Detailed page for trouble code B2827.

34,405codes
59brands
11,914generic
22,491specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

B2827

HYUNDAI B — Body

GPS Antenna Open State

Brand: HYUNDAI
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Disconnected or unplugged GPS antenna connector
  • Broken or damaged antenna coaxial cable (open conductor)
  • Corroded or water-damaged antenna or connector
  • Failed/defective GPS antenna (internal open)
  • Faulty navigation/telematics control unit or bad antenna input
  • Aftermarket antenna or splitter installed incorrectly

Symptoms

  • No GPS signal / 'Waiting for GPS' or 'No satellite signal' message on navigation
  • Navigation position not updating or incorrect location
  • Telematics features (SOS, connected services) reporting location errors or unavailable
  • Navigation module errors or warning lamp/message
  • Intermittent GPS reception or drops during driving

What to check

  • Obtain freeze frame / code snapshot and confirm B2827 is current (not historic)
  • Visual inspection of roof/antenna mounting area and antenna connector for damage or moisture
  • Inspect harness routing for chafing, pinched sections, or rodent damage
  • Check antenna connector is fully seated at antenna and at navigation/telematics unit
  • Scan for related codes (other B/U codes affecting comms or antenna)
  • If available, check software/firmware TSBs for GPS antenna issues

Signal parameters

  • Continuity: Center conductor continuity between antenna and module should be present; open (OL) = fault
  • Shield continuity: Coax shield continuity to chassis/shield expected; open indicates cable damage
  • For passive antennas: no DC bias present from module (measuring DC voltage is not expected)
  • For active antennas: DC bias typically ~5 V supply on antenna feed; measure with module powered (current draw normally small, tens of mA)
  • Resistance: DC resistance very low between center conductor and module input when connected; very high/OL indicates open circuit

Diagnostic algorithm

  1. Confirm code with a scan tool and note when it set (ignition state, driving conditions). Clear code and attempt to re-create.
  2. Visually inspect the GPS antenna, mounting grommet, and connector for corrosion, water intrusion, looseness or damage.
  3. With ignition ON (accessory), verify connector is fully seated at antenna and at module. Wiggle connectors while monitoring code status.
  4. Measure continuity between the antenna center pin and the navigation/telematics unit antenna input pin. An open reading indicates a broken conductor or disconnected connector.
  5. Check coax shield continuity to chassis/ground. Open shield suggests cable damage.
  6. If the vehicle uses an active (powered) antenna, measure DC bias voltage at the antenna feed at the module connector with the harness connected and module powered. No expected bias on passive antennas.
  7. If suspecting intermittent fault, perform a wiggle test along the harness while monitoring continuity and code status.
  8. If wiring and connectors are good, disconnect antenna and test/replace with a known good antenna (or swap with spare) to confirm antenna failure.
  9. Inspect and repair any damaged wiring or connectors (replace coax harness if needed). Reinstall or replace antenna if defective.
  10. After repair, clear codes, verify communication and re-check GPS acquisition by driving in an open-sky area until satellites are acquired.

Likely causes

  • Open or disconnected coax connector at antenna or module
  • Physical damage to antenna cable causing open circuit
  • Water ingress/corrosion at antenna connector or module connector
  • Defective GPS antenna (internal open)
  • Intermittent wiring failure in harness between antenna and module

Fault status

⚠️ Status
GPS antenna open circuit detected — navigation/telematics antenna signal missing.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2 hours

Similar codes

B2828 B2826 B2810 U0140 U0073
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

HYUNDAI

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .