Wondering if anyone can shed some light. The DC/DC converter, where is this, internal to the Bosch PCM?
I have a list as long as my arm with multiple sensors at fault. Most sensors are seeing 0.25v at the wiring and live data, there should be a 5v ref feed and of course a signal, which is working because the ecu seeigs what my meter sees, but..... the throttle position sensor, although on one track feed has 5v and signal adjusts the other track has no feed so cant confirm the track is faulty. Both tracks have good earth. Live data shows its actually seeing 16V??!! Even with it unplugged.
I have one fault out of the 11, P0A94-00 DC/DC converter performance, which may relate to the incorrect voltage data im seeing at the PCM?? Is there a way to test this, or is it intal to the control module? What is its function? to modulate the 12/14v DC feed at the battery and the control module distributes the power to sensors etc as 5v??
Be great to know how this works, may help me fix this!
Thanks![Smile]( "Smile")
I have a list as long as my arm with multiple sensors at fault. Most sensors are seeing 0.25v at the wiring and live data, there should be a 5v ref feed and of course a signal, which is working because the ecu seeigs what my meter sees, but..... the throttle position sensor, although on one track feed has 5v and signal adjusts the other track has no feed so cant confirm the track is faulty. Both tracks have good earth. Live data shows its actually seeing 16V??!! Even with it unplugged.
I have one fault out of the 11, P0A94-00 DC/DC converter performance, which may relate to the incorrect voltage data im seeing at the PCM?? Is there a way to test this, or is it intal to the control module? What is its function? to modulate the 12/14v DC feed at the battery and the control module distributes the power to sensors etc as 5v??
Be great to know how this works, may help me fix this!
Thanks
