Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Jeep Cherokee XJ 1988-1989.1993-1995 Approved 1995 XJ Jeep Cherokee 95xj_8a
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download 95xj_8a documenatation <<
Text preview - extract from the document
J ELECTRICAL 8A - 1
ELECTRICAL
GROUP INDEX
Group Group
AUDIO SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . 8F POWER SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . 8R
BATTERY/STARTER/GENERATOR SERVICE . . . . 8B POWER WINDOWS . . . . . . . . . . . . . . . . . . . . . . . 8S
BATTERY/STARTING/CHARGING SYSTEMS REAR WINDOW DEFOGGER . . . . . . . . . . . . . . . 8N
DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . 8A RESTRAINT SYSTEMS . . . . . . . . . . . . . . . . . . . 8M
CHIME/BUZZER WARNING SYSTEMS . . . . . . . . 8U TURN SIGNAL AND HAZARD WARNING
HORNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8G SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8J
IGNITION SYSTEMS . . . . . . . . . . . . . . . . . . . . . . 8D VEHICLE SPEED CONTROL SYSTEM . . . . . . . . . 8H
INSTRUMENT PANEL AND GAUGES . . . . . . . . . 8E WIPER AND WASHER SYSTEMS . . . . . . . . . . . . 8K
LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8L XJ WIRING DIAGRAMS-LEFT HAND DRIVE . . . 8W
OVERHEAD CONSOLE . . . . . . . . . . . . . . . . . . . . 8C XJ WIRING DIAGRAMS-RIGHT HAND DRIVE . 8W
POWER LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . 8P YJ WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . 8W
POWER MIRRORS . . . . . . . . . . . . . . . . . . . . . . . 8T
BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS
CONTENTS
page page
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 23
CHARGING SYSTEM . . . . . . . . . . . . . . . . . . . . . 17 STARTING SYSTEM . . . . . . . . . . . . . . . . . . . . . . 11
IGNITION-OFF DRAW . . . . . . . . . . . . . . . . . . . . 10 USING ON-BOARD DIAGNOSTIC SYSTEM . . . . 22
GENERAL INFORMATION into the Powertrain Control Module (PCM). Use of an
The battery, starting, and charging systems operate induction milliamp ammeter, volt/ohmmeter, battery
with one another; therefore, they must be tested as a charger, carbon pile rheostat (load tester), and 12-
complete system. In order for the vehicle to start and volt test lamp will be required.
charge properly, all of the components involved in All OBD-sensed systems are monitored by the
these systems must perform within specifications. PCM. Each monitored circuit is assigned a Diagnos-
Group 8A covers battery, starting (Fig. 1) and tic Trouble Code (DTC). The PCM will store a DTC in
charging (Fig. 2) system diagnostic procedures. These electronic memory for any failure it detects. See Us-
procedures include the most basic conventional diag- ing On-Board Diagnostic System in this group for
nostic methods, to On-Board Diagnostics (OBD) built more information.
8A - 2 BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS J
Fig. 1 Starting System Components (Typical)
Fig. 2 Charging System Components (Typical)
BATTERY
GENERAL INFORMATION movement of electrons produces a flow of electrical
The storage battery is a device used to store elec- current through the load device attached to the bat-
trical energy potential in a chemical form. When an tery terminals.
electrical load is applied to the battery terminals, an As the plate materials become more similar chem-
electrochemical reaction occurs within the battery. ically, and the electrolyte becomes less acid, the volt-
This reaction causes the battery to discharge electri- age potential of each cell is reduced. However, by
cal current. charging the battery with a voltage higher than that
The battery is made up of 6 individual cells that of the battery, the process is reversed.
are connected in series. Each cell contains positively Charging the battery gradually changes the sul-
charged plate groups made of lead oxide, and nega- fated lead plates back into sponge lead and lead ox-
tively charged plate groups made of sponge lead. ide, and the water back into sulfuric acid. This action
restores the difference in electron charges deposited
These dissimilar metal plates are submerged in a
on the plates, and the voltage potential of the battery
sulfuric acid and water solution called electrolyte.
cells.
As the battery discharges, a gradual chemical
For a battery to remain useful, it must be able to
change takes place within each cell. The sulfuric acid
produce high-amperage current over an extended pe-
in the electrolyte combines with the plate materials, riod. A battery must also be able to accept a charge,
causing both plates to change to lead sulfate. At the so that its voltage potential may be restored.
same time, oxygen from the positive plate material In addition to producing and storing electrical en-
combines with hydrogen from the sulfuric acid, caus- ergy, the battery serves as a capacitor or voltage sta-
ing the electrolyte to become mainly water. bilizer for the vehicle electrical system. It absorbs
The chemical changes within the battery are abnormal or transient voltages caused by switching
caused by movement of excess or free electrons be- of any of the vehicle's electrical components.
tween the positive and negative plate groups. This The battery is vented to release excess gas that is
created when the battery is being charged or dis-
J BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS 8A - 3
charged. However, even with these vents, hydrogen (2) Cranking Capacity This can be determined
gas can collect in or around the battery. If hydrogen by performing a battery load test, which measures
gas is exposed to flame or sparks, it can ignite. the ability of the battery to supply high-amperage
If the electrolyte level is low, the battery could arc current.
internally and explode. If the battery is equipped If the battery has a built-in test indicator, use this
with removable cell caps, add distilled water when- test first. If it has no test indicator, but has remov-
ever the electrolyte level is below the top of the able cell caps, perform the hydrometer test first. If
plates. If the battery cell caps cannot be removed, the cell caps are not removable, or a hydrometer is not
battery must be replaced when the electrolyte level is available, perform the open circuit voltage test first.
low. The battery must be charged before proceeding
with a load test if:
WARNING: DO NOT ATTEMPT TO ASSIST BOOST, ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo