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Moisture intrusion into the sensor connector leads to green, crusty corrosion. This increases resistance or creates a direct short. i--- Toyota C052f14
| | Description | | :--- | :--- | | C052C11 | ABS Pump Motor Control Circuit Short to Ground. | | C052C13 | ABS Pump Motor Control Circuit Open. | | C142719 | ABS Pump Motor Circuit Current Above Threshold. | | C052C49 | ABS Pump Motor Control Internal Electronic Failure. | | | Description | | :--- | :---
: A sub-type fault byte indicating that the circuit suffers from either an open line (a complete break in the wire or connection) or a short to the ground (exposed live power touching the car chassis). | | C052C49 | ABS Pump Motor Control
Identifying the source of C052F14 often involves looking at both electrical and mechanical components:
You need a multimeter and ideally a bi-directional scan tool (like Techstream, Autel, or Launch). Do not just clear the code and hope it goes away.
The code (properly known as C052F14) is a warning that your Toyota’s electronic brake booster has an electrical fault – most likely a short to ground or open circuit in the pressure sensor wiring. While the code looks intimidating, the fix is often as simple as repairing a chafed wire or cleaning a corroded connector.
