Live Data
Last reported case: 8 years ago
Based on 4 owner reports, 4 from forums)
What is P1633?
🚗P1633 on 2020 FORD Mustang
This page focuses specifically on P1633 issues reported by 2020 FORD Mustang owners. The experiences and fixes below are from real owners of this exact vehicle.
Symptoms Reported by 2020 FORD Mustang Owners:
cel light
Parts Often Involved:
c175 connectorserpentine beltecubatteryfusesalternatorfuse box
What Owners Say
Real experiences from 2020 FORD Mustang owners
Experiencevia forum_post
“Comes on a few seconds after starting, for keep alive memory voltage too low. I have 12.5v plus at the B45 pin, which is the correct one as well as I can tell.”View original
Experiencevia forum_post
“I have 12.5v plus at the B45 pin, which is the correct one as well as I can tell. Also have 12.5v plus on the wire going into the plug when it is plugged up and the car is running.”View original
Experiencevia forum_reply
“According to this the KAM memory power source is on pin 55 of C175 connector. F122 is a 10 AMP fuse that supplies the voltage to the PCM at ALL times (Hot at all times).”View original
Experiencevia forum_reply
“Here's the link hope it is for the correct year. It has the diagnostics section from Ford in there along with pin-out and fuse box location for F122. http://www.justanswer.com/ford/21ups-getting-p1633-code-cleaned-battery-terminals.html”View original
Experiencevia forum_reply
“Alternator went out. I bought a rebuilt one and it was bad, so I am on my second alternator and the bearings are squeaking in it.”View original
Experiencevia forum_reply
“Code P1633 still there. I did find the PCM pin-out schematic for the car though and will be checking that this weekend.”View original
Experiencevia forum_reply
“Well, installed a new battery, and a new serpentine belt. Checked all my cables.”View original
Experiencevia forum_reply
“I bought a rebuilt one and it was bad, so I am on my second alternator and the bearings are squeaking in it. Went to get it inspected and it failed.”View original
These are real experiences shared by 2020 FORD Mustang owners on automotive forums and communities. Results may vary based on vehicle condition and repair quality.
About This Data
This page aggregates 4 discussions about P1633 from 2020 FORD Mustang owners across automotive communities.
Success rate (0%) is calculated from posts where owners confirmed whether their fix resolved the issue.
Last updated: 3/31/2017