Scania Truck Front Right Direction Indicator CUV 5 Fault Repair Guide

This guide provides step-by-step instructions to diagnose and resolve the CUV 5 trouble code related to the front right direction indicator on Scania trucks.

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Fault Description:

The control unit detects that the current consumption on its output has exceeded 4 amps.

Possible Cause:

  • Short circuit in relay R19 (relay for current-consuming equipment)
  • Short circuit in the cable harness

Symptoms:

  • The right-hand front direction indicator is not functioning.
  • Each time the indicator is activated, the control unit monitors current consumption. If it exceeds the limit, the output is shut off and a fault code is logged.

Recommended Actions:

  1. Inspect the indicator bulbs for damage or malfunction.
  2. Verify the number of lamps connected to the circuit; ensure it matches the design.
  3. Check for any short circuits to ground in the wiring.

Follow these steps carefully to restore proper function to the front right direction indicator and clear the CUV 5 fault code.

For more information about Scania truck,please refer to: Scania Trouble Repair.