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Home/DTC Codes/Renault/Kwid/2017-2025 1.0L I3 SCe Flex/U0008
U0008

High Speed CAN Communication Bus (-) High

2017-2025 Renault Kwid 1.0L I3 SCe Flex 🇩🇪

High SeverityNetwork

Description

The CAN Low wire voltage is higher than expected, indicating a short to power.

Symptoms

  • CAN bus failure
  • Multiple communication errors
  • Systems unresponsive

Common Causes

  • CAN L shorted to battery voltage
  • Wiring harness damage
  • Module fault driving CAN L high

Diagnostic Steps

  1. Measure CAN L voltage
  2. Disconnect modules to isolate
  3. Inspect wiring for shorts to power circuits
  4. Check harness routing near power wires

Repair Notes

Repair CAN L short to power. Ensure CAN wiring is properly separated from power wiring.

Related Codes

U0001High Speed CAN Communication BusU0006High Speed CAN Communication Bus (-) OpenU0007High Speed CAN Communication Bus (-) Low

Other Network Codes

U0008 on Other Vehicles

Renault Arkana

2021-2024 1.3L I4 TCe

Renault Arkana

2021-2024 1.6L Hybrid

Renault Arkana

2021-2025 1.3L I4 TCe 140

Renault Arkana

2021-2025 1.6L I4 Hybrid E-Tech 145

Renault Arkana FR

2021-2025 1.3L I4 Turbo TCe 140

Renault Arkana FR

2021-2025 1.6L I4 Hybrid E-Tech 145

Renault Austral

2022-2025 1.2L I3 Hybrid E-Tech

Renault Austral

2022-2025 1.3L I4 TCe 140

Common Questions

What does code U0008 mean on a 2017-2025 Renault Kwid?

U0008 stands for "High Speed CAN Communication Bus (-) High". The CAN Low wire voltage is higher than expected, indicating a short to power.

What are the symptoms of U0008 on a Renault Kwid?

Common symptoms of U0008 include: CAN bus failure, Multiple communication errors, Systems unresponsive.

What causes U0008 on a 2017-2025 Renault Kwid?

Common causes of U0008 include: CAN L shorted to battery voltage, Wiring harness damage, Module fault driving CAN L high.

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