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D-H Auto Ckinic

Nissan Frontier with U1001 error code

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Good Day,

A customer brought in a Nissan Frontier with issue of car unable to shift into reverse gear. Diagnostic Scan result shows 13 error code for engine and 3 for Transmission. Wiring harness of all components and testing of the components shows everything is OK. Car idles at above 1000RPM with realtime TP Sensor showing between 0.8% - 1.2%.

Of concern is the U1001 error code. Could the ECM be the culprit?

Right now, car shift into reverse when car is restarted. There is also hard shift into forward gears. What are my options?

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