P0230 fuel transfer pump circuit fault. Usually caused by a failed transfer pump.
Trouble code P0230 means:Fuel pump primary circuit malfunction
Trouble code P0234 means:Engine overboost condition
P1693 means that there is a code in the companion module. The pcm and ecm are the companion modules.
my book says code 0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH A CIRCUIT HIGH INPUT
#2 warm air heater relay wiring fault
P1693 : Dtc detected in the companion module. You need to check the Ecm and Pcm for codes. Which ever did not have p1693 will have a code.
The code is available from a dealer with proof of ownership.
A/C clutch relay circuit.
Low oil pressure
Trouble code P0177 means:Fuel composition sensor circuit range/performance
The abs computer has detected a malfunction and set a code. You need to have the codes checked with a scan tool to know possible causes.
Camshaft position sensor circuit malfunction.