Scania ALLISON DTC 626688 Retarder pressure sensor, voltage high

ALLISON Allison automatic gearbox · Scania · 2 variants

Code 626688 (decimal). Some diagnostic tools show it in hexadecimal as 099000.

In short

The control unit has detected 5 V or more from the retarder pressure sensor.

Variant 1

Applies to: A5

What does Scania ALLISON fault code 626688 mean?

What causes Scania DTC 626688?

How to fix Scania ALLISON fault code 626688?

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Variant 2

Applies to: A6

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