Warning Lights Hint at Oil Temp Sensor Issue in Wrangler

I had a very similar issue with my 2020 Wrangler 4xe Sahara. Having some experience with hybrid vehicles, I initially thought it was the oil sensor itself, but it turned out to be a faulty connection. The temperature sensor was giving incorrect readings, triggering multiple warning lights on the dashboard. The car diagnostics showed similar error codes to what you are describing. After checking the engine sensor connections, the workshop found a damaged wire harness connecting to the oil gauge system. The repair was straightforward, they replaced the wiring and cleaned the connector ports. Total cost was 95 Euro for parts and labor. The warning lights cleared immediately after the fix. For a more accurate diagnosis of your specific case, could you share: Current mileage on your Wrangler, When did the warning lights first appear, Whether the warnings come on immediately after starting or during driving, If you notice any pattern with engine temperature This would help determine if you are facing the same connection issue or if its potentially a different sensor problem. Make sure to have the workshop verify the entire oil pressure monitoring system, as these symptoms can sometimes indicate other underlying issues in hybrid powertrains.

Thanks for the feedback. My Wrangler has 199066 KM on the clock, and I just had it serviced last week. The car diagnostics showed intermittent temp sensor readings, which started appearing out of nowhere during drives. The oil sensor warnings dont follow any clear pattern with engine temperature, making it tricky to pinpoint. The dealer initially suggested a full sensor replacement without checking the wiring. Based on your experience, Ill request they inspect the connections first since it seems like a more cost-effective approach than immediately changing the entire sensor unit.

Thanks for the additional details about your Wrangler. The symptoms you describe, especially the unusual occurrence and lack of correlation with engine temperature, match exactly what I experienced with my wiring issue. The intermittent automotive sensor readings are a classic sign of connection problems rather than a complete sensor failure. When my car sensor started acting up, the readings would jump erratically, triggering those same warning lights. Since you mentioned recent servicing, its worth noting that sometimes wire harness issues can develop after routine maintenance when components are disconnected and reconnected. The oil temperature monitoring system is particularly sensitive to loose connections. Instead of rushing to replace the entire oil sensor unit, have them: 1. Test the voltage output at the sensor connector 2. Check for corroded terminals 3. Inspect the wire harness for any worn spots 4. Verify ground connections My repair costs stayed under 100 Euro because we avoided unnecessary parts replacement. A new engine sensor unit alone would have cost around 400 Euro plus labor. Keep us updated on what they find. Given the identical symptoms, Im fairly confident youre dealing with a similar wiring issue rather than a failed sensor.

Thanks everyone for the detailed responses. After having the car checked today, the issue was indeed related to wiring. The car diagnostics revealed a loose connection in the oil temperature sensor harness, likely from the recent service work. The mechanic cleaned the contacts and properly secured the connections, fixing the intermittent temp sensor readings. Total repair cost was 85 Euro, mostly labor. No replacement parts were needed. The warning lights have completely disappeared and the oil sensor is now giving consistent readings. The car diagnostics are all clear. Really glad I asked here first and insisted on checking the wiring before replacing the entire sensor unit. Saved a significant amount and got the actual problem fixed. Its worth noting for others that these automotive sensor issues often stem from simple connection problems rather than complete sensor failure.