Code Definition

C1232 — Speed Wheel Sensor Rear Centre Input Short Circuit To Battery

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

About C1232

C1232 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 C1232 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit; and a sensor-related fault — the reported value from the named sensor is out of spec.

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.

C1232 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

On vehicles equipped with a rear centre wheel speed sensor, typically mounted on the rear differential, transfer case output, or driveshaft pickup, the ABS module monitors the sensor input circuit for electrical faults. DTC C1232 sets when the module detects battery voltage on the rear centre wheel speed sensor signal circuit, indicating a short to a powered conductor in the sensor wiring or connector. Wheel speed sensors operate at low signal voltages, so the presence of battery voltage on the signal line is recognised as an electrical fault and the module disables the sensor input to protect...

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