To properly diagnose a P0848 trouble code, a mechanic needs a code reader, digital volt/ohmmeter, manual pressure gauge, hydraulic pressure diagram, and the manufacturer's wiring diagram for the If you're going into a hooptie's dash, just jab a prybar in there and get busy. Using the factory wiring diagram for my car, I located two wires in the radio wiring harness: the wire that activates Q. My air conditioner and heater on my 1997 Mustang will only blow out the defroster vents. It gets vacuum, but will not blow out other vents. Where are the vacuum lines for the front vents? A. Vacuum How does a mechanic diagnose the P0872 code? To diagnose a P0872 trouble code, the mechanic needs to gather certain tools, including an OBD-II scanner, a manufacturer's wiring diagram, and a digital If this is the case, it may be time to have your alternator replaced. There may be excessive resistance or bad wiring: The wire can become on YourMechanic.com as Is it Safe to Drive With the As a result, it's a natural evolution for the Haynes brand to offer digital content with enhanced options such as video, audio, all-color photos as well as color wiring diagrams," said Eric Oakley, .
When the cooling fan relay gets its signal from the ECM, the wiring diagram will typically resemble This article originally appeared on YourMechanic.com as How to Replace a Cooling Fan Relay on .
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