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Home >> Kia >> 2025 >> Seltos X-Line >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control System Diagnosis >> DTC P1957-21: AWD Pressure Sensor-Signal Error >> Wiring Inspection >> Circuit Inspection
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Circuit Inspection

G00664272Courtesy of KIA MOTORS AMERICA, INC.
Inspection Item Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
Power inspection (Pressure sensor ↔ Chassis ground) 1. Connect the connector(s) pressure sensor.
2. Ignition ""ON"".
Pressure sensor connector 3 (power) Chassis ground - Approx. 5V
Voltage inspection (Pressure sensor ↔ Chassis ground) 1. Connect the connector(s) pressure sensor.
2. Ignition ""ON"".
Pressure sensor connector 2 (signal) Chassis ground - Approx. 0.48V
Power inspection (Pressure sensor ↔ Chassis ground) 1. Disconnect the connector(s) pressure sensor.
2. Ignition ""ON"".
Pressure sensor connector 3 (power) Chassis ground - Approx. 5V
Voltage inspection (Pressure sensor ↔ Chassis ground) 1. Disconnect the connector(s) pressure sensor.
2. Ignition ""ON"".
Pressure sensor connector 2 (signal) Chassis ground - Approx. 0V
Open in circuit inspection (Pressure sensor ↔ AWD) 1. Ignition ""OFF"".
2. Disconnect the connector(s) pressure sensor, AWD.
Pressure sensor connector 1 (ground) AWD connector 15 (ground) Approx. below 1Ω

Good 

No Good