Trouble code P0234 means:Engine overboost condition
#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.
Low oil pressure
Camshaft position sensor circuit malfunction.
Trouble code P0177 means:Fuel composition sensor circuit range/performance
Trouble code P0483 means: Fan Performance
Trouble code P1693 means: A companion DTC was set in both the ECM and PCM
Trouble code P0573 means:Cruise control/brake switch A circuit high
my book says code 0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH A CIRCUIT HIGH INPUT
P1693 means that there is a code in the companion module. The pcm and ecm are the companion modules.
Trouble code P0680 means: Reserve for future glow plugs 9-12