Cadillac Owners Forum banner

1 - 2 of 2 Posts

·
Registered
98 deville
Joined
·
2 Posts
Discussion Starter #1
I will be changing my crank sensors tomorrow,and I have a code for that I checked for other codes anothe one popped up for p1634 ing power low volts what could this be could the bad crank sensors throw this code also any advice will be very helpful thank you.
 

·
Registered
04 Deville, 11 DTS Premium, 00 Deville (sold), 02 Deville (sold)
Joined
·
2,688 Posts
The PCM is powered with 5 power feeds. Two of these feeds are from the battery, the other three are from the ignition switch and are called Ignition 1, Ignition Supplement and Ignition 0. If the Ignition 1 and Ignition 0 voltages are more than 2 volts different for 5 seconds, DTC P1634 will set.

If you are changing the Crank sensors I am assuming that you have been having trouble with stalls and or hard starts. When the N* stalls I have seen it throw several other unrelated codes.
 
1 - 2 of 2 Posts
Top