What does fault code SUM-0128 mean?

Diagnostic fault code details for SUM-0128 (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Repair service at OBD Tuning.

VOLVO

SUM-0128 - Solenoid, suspension right front. Temperature too high

System

Suspension Module (SUM)

Volvo models this fault code applies to

Applies to the following models:

4 models

S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)

Show models by year and engine (4)

What does this fault code mean?

The solenoid at the right front wheel has become too hot. The fault may be caused by poor contact in the connections or by hard driving, and the Four-C function is limited.

Possible causes

Poor contact in the connections
Hard driving

What you can do

1Read out the code, clear it and test-drive the car to see whether it returns
2Check the solenoid and its connectors at the right front for poor contact or oxidation
3Have a workshop measure the solenoid resistance
4After the repair, the Four-C system's settings need to be calibrated. Have a workshop do this

Symptoms you may notice1

No noticeable symptoms for the driver

What the fault can affect1

The Four-C function is limited

General guidance for car owners. Diagnosis on the car can point to a different cause.