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Feb 3, 2022 - In order to turn off the wipers for now you can try smacking the top of the fuse panel to see if the relay disengages.
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hello james
i recommend consulting the vehicle's wiring diagram to identify all components and circuits connected to the PCM B fuse and inspect all the wiring
View wiring diagrams an using a DVOM - digital volt ohm meter is the normal way to find this type problem's. If unsure on how to proceed watch these video's Electric Testing Techniques You Need to KnowBasic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model an engine size . Then under system click on lighting ,then under subsystem click turn signals .Click the search button then the blue link .Looking at the wiring diagram i see the BCM - body control module make's the turn lamps in the rear work .
All the P**** codes can be found on Google. Here is the first one. All the links tell the problem and the fix. They are all regarding the throttle pedal position.
https://www.google.com/search?q=2003+Silverado+P0120
and the second one
The P0220 code means that the vehicle's powertrain control module has detected a voltage or resistance reading that is outside of specifications that were set by the manufacturer for this circuit.
It may seem like the problems are related, but they most likely are not at all, unless it's an actual battery power issue. Your fuel gauge consists of 2 parts and wires to connect them, the sending unit, which is in the gas tank connected to your fuel pump on your truck I believe, and the gauge itself inside your dash. It is most likely your sending unit/fuel pump which sucks cause that's like $350, altho easy enough to replace yourself with very little gas in the tank. As for the radio check fuses, and AC I have no idea...
Here are the torque specs you seek:
• Caliper mount bolts are to be set at 74 ft-lb
• Driveshaft axle nut should be at 177 ft-lb
• Hub and bearing mounting bolts should be at 133 ft-lb
The plastic line in the wiring harness goes to the heater controls; and believe it or not , the other end goes to the vacuum tank - but its in the FENDER !!!!! behind the ABS, kinda under the drivers side hood hinge - great place to put one ain't it ? No wonder GM is going broke !! Good Luck
Having repair info manual is all well an good , but not knowing how to use the info. won't do you any good . Fuse's that blow means that there is an electrical short circuit on the wiring that fuse protects . Looking at electrical distribution diagrams to see what all that fuse supply's battery voltage too an isolating them until you find the problem circuit . Videos on youtube showing how to find a short circuit .
The Trainer 29 Understanding How Electrical CIrcuits Work and How to Test...The Trainer 73 Building Solid Electrical Foundation
Training is how professional technicians solve this type problem's . Plus there is enough free info on the internet that a problem like this could be fixed without paying for repair manual . Free wiring diagrams here http://www.bbbind.com/free-tsb
Enter vehicle info. year , make , model an engine size. The ETC / ECM fuse supply's battery voltage to the engine computer an the electronic throttle control system . If you know any of this , your best bet would be to take it to a qualified repair shop , not pay for a repair manual . That would be a waste of money
https://ibb.co/bKq6WV
1500--4wd
Click on the link, there are some specs. On the right side, the first set of numbers is ft lbs. I see the hub nut spec. If that isn't what you need, can you be more specific?
Don't waste your money on unnecessary sources and unwanted repairs. Get this manual online at www.reliable-store.com and get complete guide on whether to repair or not, service it, and how to repair etc
Sometimes these radios have what is called a logic lock up. First thing to try is to remove BOTH positive and negative cables from the battery. Then while holding both cables away from the battery, touch the metal ends of the cables together and hold for 20 seconds. This will usually reset locked electronic modules. Hook them back up to the battery and try radio.
