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P0152 on Kia: Symptoms, Causes & Fix

O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

Official technical diagnostic wire for fault code P0152 specifically affecting Kia vehicles (K5, Telluride, Sportage, Sorento, EV6).

Sensor Voltage Ref
0.1V – 5.0V Ref
Kia Factory Standard
CAN Bus Speed
500 kbps CAN-FD
ISO 15765-4 Diagnostic Bus
Drivability Status
Drivable (Short Trip)
High urgency level
Est. Repair Cost
$130 - $380
Parts & Labor DIY
Model-Specific Diagnostic Wires

Select Your Kia Model for P0152:

6 Models Available

1. Common Symptoms on Kia Vehicles

When Kia Engine Control Modules (ECM) trigger fault code P0152, drivers typically report:

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

2. Root Causes on Kia Engines

Historical diagnostic claims across Kia engines point to the following failure distribution:

55%
Failed Bank 2 O2 sensor (Kia OEM Part)
25%
Leaking Bank 2 fuel injector (Kia OEM Part)
12%
O2 sensor shorted to 12V (Kia OEM Part)

3. Step-by-Step Fix Protocol for Kia

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P0152 to note engine RPM, load, and voltage when the fault triggered. on Kia engines.

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P0152 for chafing, corrosion, moisture, or pin push-out. on Kia engines.

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on Kia engines.

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on Kia engines.

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on Kia engines.

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Kia (P0152)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Kia OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Kia.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

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

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

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

Compare OEM & Aftermarket Replacement Sensors for KiaVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
Find Parts on Amazon
* As an Amazon Associate, MazicBay earns from qualifying purchases. Prices & availability subject to change.

4. Kia P0152 Frequently Asked Questions

What does code P0152 mean on a Kia?

On Kia vehicles, P0152 indicates that the Engine Control Module (ECM) detected o2 sensor circuit high voltage (bank 2 sensor 1). This typically points to Failed Bank 2 O2 sensor or Leaking Bank 2 fuel injector.

Can I continue driving my Kia with code P0152?

Caution. Bank 2 reported rich. Because this code carries a High severity rating on Kia powertrains, we recommend scanning live data values promptly to prevent secondary damage.

How much does it cost to fix code P0152 on a Kia?

Estimated DIY parts cost ranges from $130 - $380, while professional shop repairs at an authorized Kia dealership or independent specialist typically range from $180 to $380 including diagnostic labor.