Cadillac P1640: Output Driver 2 Input Voltage High Input
Is your scanner showing Cadillac P1640?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1640: Output Driver 2 Input Voltage High Input
OVERVIEWWhat Does The Cadillac P1640 Code Mean?
Engine started; and the PCM detected an unexpected “high” voltage condition on the ignition feed circuit (Circuit 639) for Output Driver Module 1 circuit during the CCM test.
What Are The Potential Causes Of The Cadillac P1640 Code?
Below are some potential causes of this DTC:
- Generator is over charging – check the generator output
- Generator ‘L’ terminal is loose (an intermittent fault)
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> New 160 Amp High Output Alternator Replacement For 2007-11 Cadillac Escalade
>>> GM Genuine Parts 12633238 Engine Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
