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Diagnose a Honda PCX 150 CKP sensor failure. Get OEM specs, MIL code 52 fixes, and torque data for stator replacement.
Honda PCX 150 CKP Sensor - OEM Specs & Torque Guide
Technical Summary
The CKP (Crankshaft Position) sensor on the Honda PCX 150 monitors crankshaft position for ignition and fuel injection timing. A faulty CKP sensor or circuit commonly triggers MIL blink code 52 and causes sudden engine shutdown, especially after water exposure.Technical Specifications & OEM Part Numbers
| Component | Specification |
|---|---|
| Model | 2018 Honda PCX 150 |
| Fault Code | 52 (CKP sensor circuit) |
| Sensor Location | Behind stator/magnet assembly |
| Circuit Path | CKP sensor to ECM |
| Replacement Type | Full stator set |
Required Tools & Torque Settings
- DMM (Digital Multimeter) for continuity testing
- Body panel removal tools
- Socket set for stator and magnet disassembly
- Test continuity from CKP sensor circuit to ECM before replacement
Diagnostic Symptoms
- MIL light illuminates after rain or washing
- Engine dies suddenly during operation
- MIL blink code 52 retrieved via DLC jumper
- Recurring failure after cleaning or wire tracing
- Rust or corrosion on stator components
Step-by-Step Replacement Guide
- Retrieve fault codes by jumping the DLC socket. Count MIL light blinks: five blinks, pause, two blinks = code 52.
- Disassemble the trunk compartment to access the rear body cover.
- Remove the rear body cover first, then the side front cover and radiator cover.
- Locate the CKP sensor socket behind the body panels.
- Perform continuity checks from the CKP sensor circuit to the ECM. Verify all connections are intact.
- Inspect the stator and magnet assembly for rust or water damage.
- Remove the stator assembly and replace with a complete new stator set.
- Reassemble all body panels in reverse order.
- Reset the MIL code and verify battery charging.
- Test run the engine to confirm the code does not return.
Pro-Tip / Field Warning
Never reuse a CKP sensor that has failed from water intrusion. Cleaning the sensor or tracing wires alone will not fix the underlying corrosion. The failure will recur within days — replace the complete stator assembly.
About the Author: Gregório
Industrial Administrator & Lean Manufacturing Consultant. Technology enthusiast passionate about bridging industrial process engineering with technical publishing. With a background in waste elimination, standardized specifications, and zero-rework quality control, Gregório curates the Motor Scooter Parts technical database to provide mechanics and DIY riders with field-tested OEM torque tolerances and precision diagnostic standards.