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P01522024 Model Year TelemetryHigh Severity

P0152 on 2024 Buick Encore GX

O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

Technical troubleshooting wire for fault code P0152 specifically tailored for the 2024 Buick Encore GX. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2024 Engine Control Module (ECM) Specific Calibration
Buick Encore GX2024 Encore GX
2024 Buick Encore GX
SUV1.2L Turbo 3-Cyl (137HP) / 1.3L Turbo 3-Cyl (155HP)
2024 Stats
Vehicle
2024 Encore GX
1.2L Turbo 3-Cyl (137HP) / 1.3L Turbo 3-Cyl (155HP)
ECU Subsystem
Automotive OBD-II
SAE Mode $01 & $02
Est. Repair Cost
$130 - $380
OEM Parts & DIY
Urgency Level
High
Drivable (Short)
Switch Encore GX Model Year for P0152

Common 2024 Encore GX Symptoms

  • Check Engine Light on
  • Black smoke on Bank 2 exhaust
  • Poor fuel economy

Likely Root Causes on 2024 Encore GX

  • Failed Bank 2 O2 sensor
  • Leaking Bank 2 fuel injector
  • O2 sensor shorted to 12V

Step-by-Step Fix Protocol for 2024 Buick Encore GX

Step 1: Scan & Record Freeze Frame Data

Connect an OBD-II scanner to the DLC port under the driver dashboard. Record engine RPM, Short Term / Long Term Fuel Trim (STFT/LTFT), and engine coolant temperature at the moment P0152 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2024 Encore GX engine bay. Use a multimeter to verify reference voltage (5.0V / 12.0V) and ground continuity.

Step 3: Component Replacement & PCM Reset

Replace the verified defective component using OEM or equivalent grade parts. Clear DTC P0152 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools

Equipment for Diagnosing 2024 Buick Encore GX (P0152)

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2024 Buick Encore GX OEM Replacement Sensor

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Direct-fit replacement assembly engineered to OEM tolerances for 2024 Buick Encore GX.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

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Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

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BlueDriver Bluetooth Pro OBDII Scan Tool

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Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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