Hello, this is not a fuel pump code. It's a code for the Fuel Tank Temperature sensor circuit high input code. The Fuel tank Temperature sensor is part of the Fuel Pump module that you replaced. If you're getting this code and have a no start condition, most likely the Fuel pump module is not getting power and there is a wiring issue going to this unit. Because it is probably missing the Fuel Pump power (12-volt), the Reference Voltage for the Fuel Tank Temperature Sensor (5 volts). It looks like you can get to the Fuel Pump Module under the back seat. You need to check this connector for power and if it's not there, you'll need to trace the wires back until you find the issue.
Usually when you get a code that says Input High, it points to a bad Ground connection.
https://www.2carpros.com/articles/how-to-use-a-voltmeter
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-a-fuel-pump-works
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Sunday, February 20th, 2022 AT 12:36 PM