Question about Cars & Trucks
There is a fuse attached to the positive side that broke and I need to know what size and type to complete installation of new battery?
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Posted on Jan 02, 2017
SOURCE: 24 volt charging problems .2
A 12 volt battery is actually 13.2 volts fully charged. If you are reading 16 volts, you are probably getting extranious voltage from the system somewhere, especially if the vehicle is running when you check the voltage. The alternator will put out about 15-18 volts to charge the battery normally, and yours may put out 28-32 volts to charge them in series, but the batteries, when disconnected, should never read more than about 13.2 volts each. Typically, it will read about 12 1/2 volts when disconnected. COMPLETELY DISCONNECT BOTH OF THE BATTERIES. If you still read 16 volts when it is disconnected, you must have a bad meter because the battery can't produce that much voltage, no matter what. (Six 2.2 volt cells connected in series inside the case.) Put the meter on a known good battery on another car that is not running and see if you get the same reading. It sounds like the other battery is almost dead, regardless, and it sounds like your series/parallel switch may be malfunctioning. (That is the switch that puts the battery in series to run the 24 volt starter, then puts the batteries in parallel to run the remainder of the vehicle on 12 volts. This is all assuming that you have a diesel vehicle with a 24 volt starter and that is why you have two batteries.
Posted on Aug 19, 2008
This is caused by a dirty/corroded headlight ground to the sheet metal of the car, the ground is usually near the headlight
Posted on Feb 25, 2009
You are correct. There is a fuse in the underhood fuse/relay compartment that powers up the pin. It is one of the larger fuses and should be labeled as "AUX". Also check that the power wire is connected to the AUX bolt terminal. They shipped from the factory disconnected and the cable was zip-tied to something below the fuse box.
Posted on Aug 26, 2009
Testimonial: "I knew there had to be something needed done, I'll check in the morning under the fuse panel for a wire to terminate and see what happens. sounds log"
Unhooke your altinator it has 6 diodes in it if one is bad it will drain the battery and still charge,unhook it and recheck I bet that is your problem,Thanks and I hope this helps
Posted on Oct 01, 2009
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There are two fuse boxes. A baqttery junction box under the hood on the drivers side and one inside on drivers side. Good luck.
Power Distribution Box
1 60A** I/P Fuse Panel
2 40A** Blower Motor Relay
3 50A** 4 Wheel Anti-Lock Brake System
4 30A** Power Windows, Power Moon
Roof, Power Seat
5 50A** Ignition Switch, Starter Relay
6 20A** Transfer Case Relay
7 - Not Used
8 20A** Air Suspension
9 40A** Air Suspension
10 30A** PCM Power Relay
1 10A* A/C Relay
2 30A* Heated Seats
3 30A* Heated Backlight
4 15A* Fog Lamps and Daytime Running
5 4 3 2 1
10 9 8 7 6
12 11 10 9
8 7 6 5
4 3 2 1
15 14 13
2 1 1
Power Distribution Box
5 - Not Used
6 10A* Powertrain Control Module
7 30A* 4 Wheel Anti-Lock System
8 15A* Rear Wiper Motor
9 20A* Fuel Pump Relay and RAP
10 15A* Horn Relay
11 15A* Parklamps Relay and Mainlight
12 30A* Mainlight Switch and
13 15A* Heated Oxygen Sensor, EGR
Vacuum Regulator, EVR Solenoid,
Camshaft Position (CMP) Sensor,
Canister Vent Solenoid
14 30A* Generator/Voltage Regulator
15 - Not Used
1 - Wiper Park Relay
2 - A/C Relay
3 - Wiper High/Low Relay
4 - PCM Power Relay
5 - Fuel Pump Relay
6 - Starter Relay
7 - Horn Relay
8 - Rear Wipe Down Relay
9 - Blower Motor Relay
10 - Rear Wipe Up Relay
1 - Not Used
1 - DRL Diode
2 - Electronic Engine Controls Diode
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