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Diagnostic knowledge / C003E — Rear Wheel Speed Sensor Supply
C003E

Rear Wheel Speed Sensor Supply

C003E is described as “Rear Wheel Speed Sensor Supply” in the Generic OBD2 reference.

Some scan tools (for example GM and Ford dealer tools) display this code with a failure-type suffix, such as C003E-00 or C003E:00; the base code C003E is the same.

Generic OBD2

Generic OBD2: C003E

en

Rear Wheel Speed Sensor Supply

Reference namespace
obd2
Source revision
legacy-2.2.20

Generic OBD2 definition; confirm the protocol and vehicle-specific service information.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-11-02-v84-evidence. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-11-02-v84-evidence. Sources and scope