P02042017 Model Year TelemetryCritical Severity

P0204 on 2017 BMW X3

Injector Circuit Malfunction - Cylinder 4

Technical troubleshooting wire for fault code P0204 specifically tailored for the 2017 BMW X3. Includes wiring sensor pinouts, freeze frame PID parameters, and step-by-step diagnostic tree.

2017 Engine Control Module (ECM) Specific Calibration

2017 X3

2017 BMW X3

SUV • 2.0L Turbo (B48 248HP) / 3.0L M-Performance Inline-6 (B58 382HP)

2017 Stats

Vehicle

2017 X3

2.0L Turbo (B48 248HP) / 3.0L M-Performance Inline-6 (B58 382HP)

ECU Subsystem

Automotive OBD-II

SAE Mode $01 & $02

Est. Repair Cost

$150 - $550 (DIY: $40 - $180)

OEM Parts & DIY

Urgency Level

Critical

Tow to Shop

Switch X3 Model Year for P0204

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Common 2017 X3 Symptoms

Flashing CEL
Engine vibration and sputtering
Sluggish acceleration
P0304 code

Likely Root Causes on 2017 X3

Faulty Cylinder 4 fuel injector
Broken wiring harness
Loose connector lock
ECM driver fault

Step-by-Step Fix Protocol for 2017 BMW X3

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 P0204 set.

Step 2: Inspect Wiring Harness & Pin Voltages

Inspect the sensor connector on the 2017 X3 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 P0204 and complete an EPA drive cycle to verify readiness monitors set to READY.

Recommended Parts & Testing Tools