Code Definition

C1442 — Steering Phase B Circuit Signal Is Not Sensed

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Generic

About C1442

C1442 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1442 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1442 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The C1442 fault code indicates the ABS or stability control module is not receiving a valid signal from the Phase B channel of the steering angle sensor. Modern steering angle sensors use quadrature signals (Phase A and Phase B) plus an index pulse to report absolute and incremental steering position to the stability control system. The module compares the relative timing of Phase A and Phase B to determine both steering direction and rate. This code is specifically set when the Phase B signal is absent (flatline at 0V or supply rail) suggesting an open circuit, missing supply voltage, or a se...

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