any time a starter is silent and sounds dead, that means any of the below can be wrong, we must do simple tests to find it (battery voltage first at 12.6vdc (100% charged summer 70f temps)
beside bad battery . this car is 4wd, 4x4.?
from easy to harder tests/cause. are:
1: battery lugs corroded, (4 ends there are) cleaned and tight works.
2: battery cables bad. ( a tech checks for voltage drops here) takes only a voltmeter and 2 persons. to prove this good or bad.
3: starter relay bad, or intermittent. replace it if starter is silent it cheap an easy fix, it just unplugs.(ask how and where) I have FSM 06
3b: the tiny wire to the starter solenoid is just loose or just rusty , clean it. (under car look up at starter this tiny lug pulls off on most cars, do so and if green with corrosion , it needs to be cleaned or replaced this lug. (both ends)
Next and very complex is IMMO: this kills dead the ASD relay , and that kills spark and fuel dead.) but this can also fail while cranking (so i add this here)
4: if the car has SKIM , like mine and the SKIM lamp in the cluster glows, at key one, that means the security models are not HAPPY, do you have 2 working keys on this car, do so. try both.
on this car it takes 2 keys to make 3 or more keys, with only 1 key , only jeep or a top key shop can make keys. (special tools complex)
aka. SENTRY KEY IMMOBILIZER SYSTEM, SKIS for short. this prevents starting any engine. if the lamp glows, SKIM/SKIS in the cluster.
the lamp is not marked, it is for stealth reason (fool the crooks reason) it is lamp 20, that is in you users guide if this lamp glows wrong no jeep starts ever.
see my 2 jeep posts here.
https://ichabodmudd.imgur.com/all/
last and can be crazy complex. this switch prevents starter from ever turning, spinning or cranking , in any gear.
5 PRNDL switch (a.k.a. so called park/neutral lockout switch or P/N switch, jeep like to call it the selector switch) Trans Range Sensor.
this is switch in the transmission, some easy to see and replace some harder hell. (deed deep inside) varies by transmission MODEL
some of these transmission are USA trans others are german. and are NOT the same, (side plate on trans is the only clue)
they used 4 transmission on this car your VIN code sent to me will let me tell you which one you have.
what is your VIN,? email or PM your VIN, and I can see what transmission this is.
SKIM/SKIS: IMMO. ( this FYI facts, all jeep owners must know)
page 16 in the users manual covers the IMMO, immobilizer and is first thing to know on all JEEPS. for sure.
"Security Alarm Indicator Light” (located in the instrument
cluster) will come on for 3 seconds immediately
after the ignition switch is turned on for a bulb check.
Afterwards, if the bulb remains on (lamp20 in the cluster), this indicates a
malfunction in the electronics. If the bulb begins to flash
immediately after the ignition switch is turned on, this
indicates that an invalid key is being used to start the
vehicle. Both of these conditions will result in the engine
being shut down after 2 seconds of running. Keep in
mind that a key which has not been programmed is also
considered an invalid key even if it is cut to fit the
ignition for that vehicle."
beside bad battery . this car is 4wd, 4x4.?
from easy to harder tests/cause. are:
1: battery lugs corroded, (4 ends there are) cleaned and tight works.
2: battery cables bad. ( a tech checks for voltage drops here) takes only a voltmeter and 2 persons. to prove this good or bad.
3: starter relay bad, or intermittent. replace it if starter is silent it cheap an easy fix, it just unplugs.(ask how and where) I have FSM 06
3b: the tiny wire to the starter solenoid is just loose or just rusty , clean it. (under car look up at starter this tiny lug pulls off on most cars, do so and if green with corrosion , it needs to be cleaned or replaced this lug. (both ends)
Next and very complex is IMMO: this kills dead the ASD relay , and that kills spark and fuel dead.) but this can also fail while cranking (so i add this here)
4: if the car has SKIM , like mine and the SKIM lamp in the cluster glows, at key one, that means the security models are not HAPPY, do you have 2 working keys on this car, do so. try both.
on this car it takes 2 keys to make 3 or more keys, with only 1 key , only jeep or a top key shop can make keys. (special tools complex)
aka. SENTRY KEY IMMOBILIZER SYSTEM, SKIS for short. this prevents starting any engine. if the lamp glows, SKIM/SKIS in the cluster.
the lamp is not marked, it is for stealth reason (fool the crooks reason) it is lamp 20, that is in you users guide if this lamp glows wrong no jeep starts ever.
see my 2 jeep posts here.
https://ichabodmudd.imgur.com/all/
last and can be crazy complex. this switch prevents starter from ever turning, spinning or cranking , in any gear.
5 PRNDL switch (a.k.a. so called park/neutral lockout switch or P/N switch, jeep like to call it the selector switch) Trans Range Sensor.
this is switch in the transmission, some easy to see and replace some harder hell. (deed deep inside) varies by transmission MODEL
some of these transmission are USA trans others are german. and are NOT the same, (side plate on trans is the only clue)
they used 4 transmission on this car your VIN code sent to me will let me tell you which one you have.
what is your VIN,? email or PM your VIN, and I can see what transmission this is.
SKIM/SKIS: IMMO. ( this FYI facts, all jeep owners must know)
page 16 in the users manual covers the IMMO, immobilizer and is first thing to know on all JEEPS. for sure.
"Security Alarm Indicator Light” (located in the instrument
cluster) will come on for 3 seconds immediately
after the ignition switch is turned on for a bulb check.
Afterwards, if the bulb remains on (lamp20 in the cluster), this indicates a
malfunction in the electronics. If the bulb begins to flash
immediately after the ignition switch is turned on, this
indicates that an invalid key is being used to start the
vehicle. Both of these conditions will result in the engine
being shut down after 2 seconds of running. Keep in
mind that a key which has not been programmed is also
considered an invalid key even if it is cut to fit the
ignition for that vehicle."
http://www.fixkick.com