Question for the mechanically inclined?

Gumbo

Well-Known Member
First Name
Clay
Joined
Sep 15, 2021
Threads
5
Messages
132
Reaction score
435
Location
Nashville, TN
Vehicle(s)
Ranger XLT Tremor
Occupation
sales
Hate to admit but I'm not. At all.

Yesterday, went to go somewhere in my Ranger and it was completely dead. Not even a chime upon opening the door. I thought that was a little strange as the keys were in my pocket and the lights were turned off. Assumed as normal that it was the battery. I jumped it off on my wife's car and it started no problem. Ok, battery is dead somehow. So I put it no the battery charger and left it overnight. Came down today and it's still completely dead. I know the charger works because I had just charged another battery. It showed it was charging while it was charging and that it was charged this morning.

What could be draining my battery? Taking it to the dealer on Monday, but curious on your thoughts.
Sponsored

 

Joeiconic

Well-Known Member
First Name
Rob
Joined
Jan 31, 2021
Threads
20
Messages
1,511
Reaction score
5,123
Location
Georgia
Vehicle(s)
2021 Ranger XLT
What year is your truck? Mileage?
 

moorejl57

Well-Known Member
First Name
Jamie
Joined
Jun 21, 2021
Threads
2
Messages
161
Reaction score
631
Location
Corvallis Oregon
Vehicle(s)
2021 Ranger Lariat FX4, 501A, fully damped
Occupation
Engineer
If you turn on the headlights, do they look nice and bright?
 


reidmefirst

Well-Known Member
First Name
Reid
Joined
Sep 18, 2022
Threads
4
Messages
74
Reaction score
149
Location
Des Moines, Iowa
Vehicle(s)
2021 Ranger
Occupation
Computer stuff
There's a chance you blew the main fuse in the truck. Easy fix, unless of course it blows again.

Get a voltmeter and check the voltage of the battery. Check the voltage both directly on the battery terminals as well as just 'after' the fuse. If it is reporting ~12.2 volts or more it should be good, and suggests that there is another problem with the vehicle. perhaps a blown fuse of stuck relay.

It is possible that when you jumped the vehicle, you connected the positive battery cable 'after' the fuse on the truck, hence jumpstarting it worked.

If the voltage is much below 12v then there is a good chance the battery is completely toast and that charging it will do nothing for you.
 
Last edited:

reidmefirst

Well-Known Member
First Name
Reid
Joined
Sep 18, 2022
Threads
4
Messages
74
Reaction score
149
Location
Des Moines, Iowa
Vehicle(s)
2021 Ranger
Occupation
Computer stuff
Check the battery voltage at all three points here:
The main battery is a solid circle.
After the main fuse is circled with a dashed line.
After the secondary fuse is surrounded by a square (somebody can tell me what the 225A and 125A fuses are for, probably the bigger one runs to the starter motor and the other runs to the 'rest of the truck systems' but I may be wrong).

All three spots should read the same voltage. If one of them reads 0 volts, then the fuse to the right needs replacing.

battery-check.jpg
 
OP
OP
Gumbo

Gumbo

Well-Known Member
First Name
Clay
Joined
Sep 15, 2021
Threads
5
Messages
132
Reaction score
435
Location
Nashville, TN
Vehicle(s)
Ranger XLT Tremor
Occupation
sales
Check the battery voltage at all three points here:
The main battery is a solid circle.
After the main fuse is circled with a dashed line.
After the secondary fuse is surrounded by a square (somebody can tell me what the 225A and 125A fuses are for, probably the bigger one runs to the starter motor and the other runs to the 'rest of the truck systems' but I may be wrong).

All three spots should read the same voltage. If one of them reads 0 volts, then the fuse to the right needs replacing.

battery-check.jpg
Thanks for the picture. I need all the help I can get under the hood.
 

airline tech

Well-Known Member
Joined
Aug 24, 2022
Threads
20
Messages
1,473
Reaction score
3,112
Location
Midwest - KS
Vehicle(s)
2022 Ranger Lariat-Super Crew, Cactus Gray
Occupation
Aircraft Tech
Thanks for the picture. I need all the help I can get under the hood.
Fuse 1: 225A - Generator
Fuse 2: 125A = PSCM (Power Steering Cont Module)

FYI - Those are the Fuse Links
 

airline tech

Well-Known Member
Joined
Aug 24, 2022
Threads
20
Messages
1,473
Reaction score
3,112
Location
Midwest - KS
Vehicle(s)
2022 Ranger Lariat-Super Crew, Cactus Gray
Occupation
Aircraft Tech
C1135A = (4 Gauge) - Bolt On - Starter
C1135B = (20 Gauge) -Plug In - BMS Sensor (Note: Plugs in from Bottom) - Not Shown
C1135C = (1 Gauge) - Bolt On - Battery Junction Box (BJB) Power Feed
C1135D = (1 Gauge) - Bolt On - (Fused 225 Amp) - Generator
C1135E = (4 Gauge) - Plug In - (Fused 125 Amp) - Power Steering Control Module (PSCM)


batt-fuse-link-jpg.jpg


22 Ranger Lariat Screw Cactus Gray
Sponsored

 
 



Top