1998 jeep grand cherokee the electric seats are not working at all i checked every fuse but there all good i dunno where the relay is and if there is anything else i should look at
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Hi,
My name is Ben and I'm your guru, i.e., mentor, an influential teacher
or popular expert: a management guru. - origin from Sanskrit, 'weighty,
grave', for today.
Your fuse is indicative of a bad ground, water in the wiring, etc. Your
problem is not particularized to any one circuit thereby virtually
eliminating problems with a circuit breaker or a faulty relay.
With that in mind, let's begin.
First Step:
Do a Thorough Visual Inspection
Do a thorough visual and "hands-on" underhood inspection before starting
any diagnostic procedure! You can find the cause of many problems by
just looking, thereby saving yourself a lot of time.
• Has the vehicle been serviced
recently? Sometimes things get
reconnected in the wrong place, or
not at all.
• Don't take shortcuts. Inspect hoses
and wiring which may be difficult to
see due to location.
• Inspect the air cleaner and
ductwork for defects.
• Check sensors and actuators for
damage.
• Inspect the illumination system wires for:
- Damaged terminals.
- Split or cracked connectors
- Splits, cuts or breaks in the inline fuses, circuit brreaker
wires and insulation.
• Inspect all electrical leads for:
- Correct wiring routing. Refer to vehicle
service manual.
- Pinches and kinks.
- Splits, cuts or breaks.
• Inspect wiring for:
- Contact with sharp edges.
- Contact with hot surfaces, such as
exhaust manifolds.
- Pinched, burned or chafed insulation.
- Proper routing and connections.
• Check electrical connectors for:
- Corrosion on pins.
- Bent or damaged pins.
- Contacts not properly seated in
housing.
- Bad wire crimps to terminals
Step Two:
:Discussion: Late model vehicles are highly computer
controlled to reduce emissions, maximize fuel economy and improve
consumer comfort. The various control systems in vehicles are
interrelated and controlled by multiple computers,sensors, relays, and
circuit breakers that constantly monitor vehicle performance through a
myriad of sensors located throughout the vehicle. Based on information
received, the computers adjust the vehicle performance through a series
of valves, switches and motors. You must use a scanner to unlock the
information stored in your car's computer. Your Cherokee is OBD II
compliant.
A Scan Tool can be used to read and erase trouble codes, display, record
and play back LIVE diagnostic data and perform other tests allowed by
the vehicle maker. Scan tools that cover vehicles 1982 to present are
available at your local auto supply dealer.
You don't indicate any diagnostic tests to date. A dealer or your local
mechanic will charge $100-$200 to perform a diagnostic scan. However, AutoZone will provide a thorough scan for FREE.
Anyone who tells you that a modern vehicle can be diagnosed without a
scanner with the problems you have set forth is merely guessing. You car
has a computer and memory and probably knows exactly what the problem
is. That on-board computer is just waiting for you to ask, "What's
wrong". All of the suggestions that I can make would of necessity be
based on the scanner readings
Irrespective of what anyone tells you, there is but one way of
diagnosing your problem. If I were to make a suggestion, it would be --
at best --. a mere guess. A diagnostic scan retrieves any inform related
to the malfunctioning parts and tells you precisely what is wrong.
Perform the scan diagnostic now.
All the best,
Ben
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