Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / U0192 — Lost Communication With Personal Computer

U0192 — Lost Communication With Personal Computer

Detailed page for trouble code U0192.

33,912codes
59brands
11,451generic
22,461specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

U0192

Generic U — Network/User

Lost Communication With Personal Computer

Brand: Generic
Type: U — Network/User
Views: UK: 34 EN: 46 RU: 45
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or shorted communication wiring (CAN/LIN/FlexRay) between modules
  • Faulty connector or poor/ intermittent pin contact
  • Blown fuse or missing power/ground to the module
  • Module internal failure or corrupted software
  • Network termination issue or bus short to battery/ground
  • Aftermarket device or recent module replacement with incompatible software

Symptoms

  • Malfunction Indicator Lamp (MIL) or network warning message illuminated
  • Scan tool cannot communicate with the Personal Computer module
  • Loss of features controlled by that module (infotainment, telematics, vehicle settings, etc.)
  • Intermittent operation of related systems or vehicle warnings
  • Other modules reporting related U-codes or network errors

What to check

  • Verify battery voltage and charging system (stable nominal voltage while cranking and at idle)
  • Check fuses and relays supplying power to the affected module
  • Visually inspect connectors and wiring at the module for corrosion, damage, or water intrusion
  • Use a scan tool to read stored and pending U/C/P-codes from all networks and modules
  • Attempt to communicate with the module using OEM or advanced scan tool; note error messages
  • Inspect CAN/LIN bus wiring for continuity, short to ground/power, and proper termination resistors

Signal parameters

  • CAN bus idle differential voltage: typically ~0 V differential (CAN_H and CAN_L around 2.5 V each)
  • CAN dominant state: CAN_H rises and CAN_L falls (differential ~1–3 V); exact levels vary by network
  • Typical CAN data rates: 125 kbps, 250 kbps, 500 kbps — verify vehicle-specific speed
  • LIN bus is single-wire serial with idle high and low pulses for data; verify expected LIN levels with spec
  • Check for bus noise, missing recessive/dominant transitions, or continuous dominant state

Diagnostic algorithm

  1. Record freeze frame and all active/pending U-codes from all modules with a capable scan tool.
  2. Confirm the correct identity of the 'Personal Computer' module in the vehicle wiring/service manual.
  3. Verify battery voltage and inspect/replace any related fuses or relays for the module.
  4. Visually inspect and secure the module connector(s). Wiggle test while monitoring for intermittent communication.
  5. Using an oscilloscope or lab scope with CAN probes, check CAN_H and CAN_L signals at the module connector for expected activity and levels.
  6. If the bus shows no activity at the module but is active elsewhere, trace wiring between the nearest active node and the module; check continuity and for shorts to battery/ground.
  7. If a short or open is found, repair wiring/connector and retest; if wiring is intact, try reprogramming or replacing the module per OEM procedure.
  8. After repairs or module replacement, clear codes and perform a full network scan to confirm restoration of communication and absence of related codes.
  9. If intermittent, perform extended road or bench tests to reproduce and ensure stable communication under different operating conditions.

Likely causes

  • Loose, corroded or damaged communication connector at the affected module
  • Blown fuse or poor ground at the module power supply
  • Shorted or open CAN/LIN wires (pinched, chafed, or rodent-damaged harness)
  • Failed module (internal hardware or firmware fault)
  • Incorrect replacement module or incomplete programming after replacement

Fault status

⚠️ Status
Lost Communication With Personal Computer — the module is not responding on the vehicle communication network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours
2,813

The library contains 2,813 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.

AUDI
580
HUMMER
69
HYUNDAI
328
ISUZU
43
LAND ROVER
160
LEXUS
1
MERCEDES-BENZ
133
MITSUBISHI
203
PORSCHE
135
TESLA
1
TOYOTA
1,021
VOLKSWAGEN
139
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

U0192

HYUNDAI U — Network/User

Lost Communication With Personal Computer

Brand: HYUNDAI
Type: U — Network/User
Views: UK: 22 EN: 34 RU: 30
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or shorted communication wiring (CAN/LIN/FlexRay) between modules
  • Faulty connector or poor/ intermittent pin contact
  • Blown fuse or missing power/ground to the module
  • Module internal failure or corrupted software
  • Network termination issue or bus short to battery/ground
  • Aftermarket device or recent module replacement with incompatible software

Symptoms

  • Malfunction Indicator Lamp (MIL) or network warning message illuminated
  • Scan tool cannot communicate with the Personal Computer module
  • Loss of features controlled by that module (infotainment, telematics, vehicle settings, etc.)
  • Intermittent operation of related systems or vehicle warnings
  • Other modules reporting related U-codes or network errors

What to check

  • Verify battery voltage and charging system (stable nominal voltage while cranking and at idle)
  • Check fuses and relays supplying power to the affected module
  • Visually inspect connectors and wiring at the module for corrosion, damage, or water intrusion
  • Use a scan tool to read stored and pending U/C/P-codes from all networks and modules
  • Attempt to communicate with the module using OEM or advanced scan tool; note error messages
  • Inspect CAN/LIN bus wiring for continuity, short to ground/power, and proper termination resistors

Signal parameters

  • CAN bus idle differential voltage: typically ~0 V differential (CAN_H and CAN_L around 2.5 V each)
  • CAN dominant state: CAN_H rises and CAN_L falls (differential ~1–3 V); exact levels vary by network
  • Typical CAN data rates: 125 kbps, 250 kbps, 500 kbps — verify vehicle-specific speed
  • LIN bus is single-wire serial with idle high and low pulses for data; verify expected LIN levels with spec
  • Check for bus noise, missing recessive/dominant transitions, or continuous dominant state

Diagnostic algorithm

  1. Record freeze frame and all active/pending U-codes from all modules with a capable scan tool.
  2. Confirm the correct identity of the 'Personal Computer' module in the vehicle wiring/service manual.
  3. Verify battery voltage and inspect/replace any related fuses or relays for the module.
  4. Visually inspect and secure the module connector(s). Wiggle test while monitoring for intermittent communication.
  5. Using an oscilloscope or lab scope with CAN probes, check CAN_H and CAN_L signals at the module connector for expected activity and levels.
  6. If the bus shows no activity at the module but is active elsewhere, trace wiring between the nearest active node and the module; check continuity and for shorts to battery/ground.
  7. If a short or open is found, repair wiring/connector and retest; if wiring is intact, try reprogramming or replacing the module per OEM procedure.
  8. After repairs or module replacement, clear codes and perform a full network scan to confirm restoration of communication and absence of related codes.
  9. If intermittent, perform extended road or bench tests to reproduce and ensure stable communication under different operating conditions.

Likely causes

  • Loose, corroded or damaged communication connector at the affected module
  • Blown fuse or poor ground at the module power supply
  • Shorted or open CAN/LIN wires (pinched, chafed, or rodent-damaged harness)
  • Failed module (internal hardware or firmware fault)
  • Incorrect replacement module or incomplete programming after replacement

Fault status

⚠️ Status
Lost Communication With Personal Computer — the module is not responding on the vehicle communication network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours
330

Browse 330 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
Code

U0192

MERCEDES-BENZ U — Network/User

Lost Communication with Television

Brand: MERCEDES-BENZ
Type: U — Network/User
Views: UK: 25 EN: 36 RU: 33
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Open or shorted communication wiring (CAN/LIN/FlexRay) between modules
  • Faulty connector or poor/ intermittent pin contact
  • Blown fuse or missing power/ground to the module
  • Module internal failure or corrupted software
  • Network termination issue or bus short to battery/ground
  • Aftermarket device or recent module replacement with incompatible software

Symptoms

  • Malfunction Indicator Lamp (MIL) or network warning message illuminated
  • Scan tool cannot communicate with the Personal Computer module
  • Loss of features controlled by that module (infotainment, telematics, vehicle settings, etc.)
  • Intermittent operation of related systems or vehicle warnings
  • Other modules reporting related U-codes or network errors

What to check

  • Verify battery voltage and charging system (stable nominal voltage while cranking and at idle)
  • Check fuses and relays supplying power to the affected module
  • Visually inspect connectors and wiring at the module for corrosion, damage, or water intrusion
  • Use a scan tool to read stored and pending U/C/P-codes from all networks and modules
  • Attempt to communicate with the module using OEM or advanced scan tool; note error messages
  • Inspect CAN/LIN bus wiring for continuity, short to ground/power, and proper termination resistors

Signal parameters

  • CAN bus idle differential voltage: typically ~0 V differential (CAN_H and CAN_L around 2.5 V each)
  • CAN dominant state: CAN_H rises and CAN_L falls (differential ~1–3 V); exact levels vary by network
  • Typical CAN data rates: 125 kbps, 250 kbps, 500 kbps — verify vehicle-specific speed
  • LIN bus is single-wire serial with idle high and low pulses for data; verify expected LIN levels with spec
  • Check for bus noise, missing recessive/dominant transitions, or continuous dominant state

Diagnostic algorithm

  1. Record freeze frame and all active/pending U-codes from all modules with a capable scan tool.
  2. Confirm the correct identity of the 'Personal Computer' module in the vehicle wiring/service manual.
  3. Verify battery voltage and inspect/replace any related fuses or relays for the module.
  4. Visually inspect and secure the module connector(s). Wiggle test while monitoring for intermittent communication.
  5. Using an oscilloscope or lab scope with CAN probes, check CAN_H and CAN_L signals at the module connector for expected activity and levels.
  6. If the bus shows no activity at the module but is active elsewhere, trace wiring between the nearest active node and the module; check continuity and for shorts to battery/ground.
  7. If a short or open is found, repair wiring/connector and retest; if wiring is intact, try reprogramming or replacing the module per OEM procedure.
  8. After repairs or module replacement, clear codes and perform a full network scan to confirm restoration of communication and absence of related codes.
  9. If intermittent, perform extended road or bench tests to reproduce and ensure stable communication under different operating conditions.

Likely causes

  • Loose, corroded or damaged communication connector at the affected module
  • Blown fuse or poor ground at the module power supply
  • Shorted or open CAN/LIN wires (pinched, chafed, or rodent-damaged harness)
  • Failed module (internal hardware or firmware fault)
  • Incorrect replacement module or incomplete programming after replacement

Fault status

⚠️ Status
Lost Communication With Personal Computer — the module is not responding on the vehicle communication network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours
133

Browse 133 MERCEDES-BENZ manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MERCEDES-BENZ

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 .