July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

3. Detect Malfunctioning Part

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check the following.

Harness connectors F105, M135
Joint connector-15
Harness for open and short between ECM and combination meter.
1. : Replace open circuit or short to ground or short to power in harness or connectors.