What causes a P1159 code?

P1159 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 P1159 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P1159 active.

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

OBD-II

P1159

Front Axle RH Wheel Speed out of range fault

What it means

The ABS module has detected that the Right Hand (RH) Front steering axle wheel speed sensor signal is inconsistent, erratic, or outside of the expected frequency range compared to the other wheels.