Power interrupt detected
Fuel pump control circuit fault (for GS300 SC300 models)
Fuel pump control signal fault
Error Code :78
Even with the proper scanner to view stability system data, the sensor is usually operating correctly at the time of diagnosis. There isalso a service bulletin that refers to a wiring harness that may cause these codes, but most allof the time it is the sensor. The sensor is not hard to replace. Takes just 15 minutes or so.