OBD-I and OBD-II diagnostic systems utilize event indicators on the dashboard.
Problems with your Ford Mustang's engine can be diagnosed with attentive driving, a eager notion of Aroma and acute hearing. You can too pop the hood and delve into the engine, on the contrary diagnosing an engine by analysis and fault can be time-consuming. A 1993 Ford Mustang has a self-testing diagnostic development in field, and using it Testament save you a portion of date. By reason of the Mustang predates 1996 and the standardization of On-Board Diagnostics, you Testament carry to build the vehicle perform a self-test, which is light to close.
Instructions
1. Inauguration the engine and let the Mustang perspiring to prevalent operative temperature, then shut the engine off. Shift into impartial or stadium, then engage the parking brake. You are looking for two things. The "Self Test Outlet" is a six-sided, trapezoidal hub with six slots. Nearby, you'll find a single outlet on pigtailed wire. This is the "Self Test Input."
Produce positive the air conditioning is off.2. Open the Mustang's hood to access the engine compartment.
3. Locate the grounding slot on the six-sided "Self Test Outlet." Stare at the bottom row then start from the right and count three holes over. Connect the "Self Test Input" to the "Self Test Outlet" with a jumper wire.
4. Insert your key into the Mustang's ignition to the "Accessories" position.
5. Count the code as it is relayed to you through the Mustang's check engine light. Ford trouble codes are either two- or three-digit sequences. The first number will be shown through long flashes, and subsequent numbers will be shorter flashes. For instance, code 22 will have two long flashes, a short pause and two short flashes. There will be a longer pause to show the beginning of a new code. Write all the codes down.
6. Look up Ford's OBD-I codes online. Once you have found the definitions for the codes you have recorded, you know where in the engine to begin a further investigation.
