Experiencing issues with your Infiniti G35 not starting and finding your OBD2 scanner unable to connect can be frustrating. One Infiniti G35 owner encountered this exact problem: their 2004 G35 coupe stalled unexpectedly and refused to restart. Adding to the confusion, the VDC off and slip lights illuminated, while the service engine soon light remained off, and was later found to be out completely. Cranking was normal, but the engine wouldn’t fire up. An attempt to use an OBD II scanner resulted in connection failures, leaving no diagnostic trouble codes to investigate.
Initially, a dealership suggested a blown fuse in the under-hood fuse box as the culprit. They replaced what they described as an “unusual” fuse. For a brief period, the G35 seemed repaired, only for the problem to recur after just two days. This time, a thorough check of all fuses, both inside the cabin and under the hood, revealed no obvious blown fuses. Despite this, the symptoms persisted: the service engine light remained off, the car wouldn’t start, and the OBD2 scanner still failed to establish a link.
This situation strongly suggests an open circuit affecting the car’s computer system, which is crucial for both engine operation and OBD2 communication. When the OBD2 port is unresponsive, it prevents essential diagnostic information from being accessed, hindering the troubleshooting process. For Infiniti G35 owners facing similar OBD2 connection and no-start issues, systematically checking the fuses related to the Engine Control Unit (ECU) or Powertrain Control Module (PCM) is a critical first step. Identifying the specific fuse responsible for this circuit is key to resolving the problem and restoring the functionality of both the vehicle and the Infiniti G35 Obd2 diagnostic system.
In conclusion, for a no-start condition in an Infiniti G35 accompanied by OBD2 scanner connection failure, especially after VDC off and slip lights illuminate, a fuse related to the ECU or PCM is a prime suspect. While a dealer might point to an unusual fuse, a comprehensive check of all relevant fuses is necessary. Resolving this electrical circuit issue is essential to regain vehicle operation and enable OBD2 diagnostics for further troubleshooting if the problem persists.
