Scania RET DTC 27100 Proportional valve

RET Retarder · Scania

Code 27100 (decimal). Some diagnostic tools show it in hexadecimal as 69DC.

In short

Short circuit to battery voltage in proportional valve circuit.

Applies to: OPC4 (RET)OPC5 (RET2)

What does Scania RET fault code 27100 mean?

What causes Scania DTC 27100?

How does the system react?

How to fix Scania RET fault code 27100?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 27100 in other Scania systems