P0204 on Jeep: Symptoms, Causes & Fix
Official technical diagnostic wire for fault code P0204 specifically affecting Jeep vehicles (Grand Cherokee, Wrangler, Gladiator, Compass).
Select Your Jeep Model for P0204:
1. Common Symptoms on Jeep Vehicles
When Jeep Engine Control Modules (ECM) trigger fault code P0204, drivers typically report:
2. Root Causes on Jeep Engines
Historical diagnostic claims across Jeep engines point to the following failure distribution:
3. Step-by-Step Fix Protocol for Jeep
Measure resistance across pins (12–16 ohms). on Jeep engines.
Check that ECM pulse reaches the connector. on Jeep engines.
Replace the faulty injector with OEM unit. on Jeep engines.
Clear DTC memory and confirm smooth operation. on Jeep engines.
Equipment for Diagnosing Jeep (P0204)
Jeep OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Jeep.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
4. Jeep P0204 Frequently Asked Questions
What does code P0204 mean on a Jeep?
On Jeep vehicles, P0204 indicates that the Engine Control Module (ECM) detected injector circuit malfunction - cylinder 4. This typically points to Faulty Cylinder 4 fuel injector or Broken wiring harness.
Can I continue driving my Jeep with code P0204?
No. Cylinder 4 is disabled, causing rough running and unburned fuel delivery issues. Because this code carries a Critical severity rating on Jeep powertrains, we recommend scanning live data values promptly to prevent secondary damage.
How much does it cost to fix code P0204 on a Jeep?
Estimated DIY parts cost ranges from $150 - $550 (DIY: $40 - $180), while professional shop repairs at an authorized Jeep dealership or independent specialist typically range from $180 to $380 including diagnostic labor.