What causes a SPN 7532 code?

SPN 7532 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a SPN 7532 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 7532 active.

How do I fix SPN 7532?

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

J1939 SPN

SPN 7532

Cummins fault code 7532

What it means

Diesel Particulate Filter (DPF) Differential Pressure - Data Valid but Above Normal Operational Range - Most Severe Level. This indicates a critical restriction in the DPF.