2011 F 350 DASH SAYS STARTING SYSTEM FAILURE.. ALL I DID WAS DISCONNECT THE NEG. ON BATTERY

disconnect pos first than neg get some jumpers and put them on the pos neg respectfully after they are not on the battery than connect the other end of the jumpers to each other for half an hour ...pump the brake pedal a few times after the half hour this will reset ...calibrate everything back to factory.and erase

how did you disconnect the battery, pos first then neg ? or neg first then pos ? try starting it and after started, hold your rpm at 1500, for about two minutes, then if still running, drive it to get to.speeds of 40 for about 15 minutes, this is to relearn if not, disconnect your battery, take the pos and neg cable and touch them together and hold for about a minute, then Connect them back, neg.first.then pos, then follow steps above to.relearn.

No fit a new battery ,also check its charging do this by jump starting the vehicle with proper cables and not boost cables then with engine running disconnect the neg battery terminal ,if engine stops then you need a new alternator if it continues to run replace the battery ,it should 12.7 volts or up dont start playing with relays or anything else .

Scan it from the OBDII System to find out for sure or remove the Alternator and have it tested at your local Auto Parts Store.

START THE CAR, CHECK VOLTAGE AT BATTERY WHILE RUNNING AT HIGH IDLE. VOLTAGE SHOULD BE SOMEWHERE BETWEEN 13.80 TO 14.80 OVER 14 IS BETTER. IF THAT IS OK THERE MAY BE A BATTERY DRAIN. TO CHECK FOR A DRAIN, TURN OFF ALL SWITCHES, CLOSE ALL DOORS , INCLUDING GLOVE COMP. DISCONNECT NEG. BATT. CABLE, PUT 12 VOLT CIRCUIT TESTER ONE END ON NEG. BATT TERM. THE OTHER END ON THE NEG CABLE. IF THE LIGHT COMES ON THERE IS A DRAIN. NO LIGHT - NO DRAIN. IF NO DRAIN HAVE THE BATTERY TESTED AT A CERTIFIED ELECTRICAL SHOP

Check the ignition switch located on the steering column under the dash.

Dead battery possibly. However, check all connections first on both the battery, pos and neg - as well as the negative on the chassi or block (wherever it's grounded) and the starter.

If these are all good - try jump starting the car. If it start, disconnect the battery (both terminals) and if it stays running the alternator is still good. If it dies, the alternator needs repalced, as well as the battery.

When an alternator starts to lose (or quit holding) it's charge, the battery becomes the main source of power. The battery purpose is to supply power to the starter at starting point, then to all electrical components. The alternator simply keeps the battery charged. So, without a good alternator, then goes the batter after about 3-5 starts and drives.

Also, as a safe measure check all fuses and relays. See my tip on how to test relays.

Please let me know if you need any further assistance.


carsandcomps,

Guru, Premium Expert @Fixya.com

Right . its not all bad.
When you have zero electrics , its a major componant failure ie; battery cables , battery fuse links, earth strap ot body etc. A set of jump leads would be helpful. Check battery is charged, check voltage at battery terminal conections and NOT the battery posts as they may be corroded and dirty but look sound (+ and -) bridge Battery neg to metal of engine . This eliminates earth connection (NEG) failure. A simple circuit tester check of the major connections (under dash) and links attached to the POS + terminal at battery should solve the problem. Remember your looking for large connectors (look on bulkhead also for fuse links) and not fuses in interior fusebox. (too many circuits down to be a single fuse type problem.

check all battey connections and system grounds. Check that the battery has 12v and holds properly when load tested. To check charging system, don't disconnect any battery leads...put a volt meter across the battery. when running, you should have at least 12.9v and volts should not drop. (usual reading is generally at or near 13) at idle with all accessories on voltage should be close to that as well. voltage should not exceed 14.Also make sure that drive belt is not slipping.

You should disconnect the neg. battery cable and disarm the air bag. Remove the floor console and the front console panel, remove ashtray and ashtray holder, remove 2 screws holding the radio at the rear of the unit, carefully push unit out the front of the dash. When it clears enough, disconnect the antenna and multi pin connector. Remove the unit. Reverse to install. Enjoy the new sound system. countrycurt0