![]() You can disconnect the fuel feed line, run it into a suitable container and activate the pump in order to completely drain the tank & lines. This can also be helpful when trying to drain old fuel. This makes it easier to see if a pump is functional and provides the correct amount of fuel pressure. Test the Automatic TCC Circuit Terminal F is used to test the TCC circuit in the automatic transmission.įuel Pump Test Terminal G is used to test the operation of the fuel pump without removing the tank or unplugging the relay.Īpply 12 volts directly to terminal G and the fuel pump should run. ![]() View the ECM Trouble Codes link in the Tech section for a full list of codes and their possible causes. Any stored trouble codes will follow code 12. This sequence would denote code 12 which should be present every time you test for codes. The check engine light will start a sequence of blinks. Turn the ignition to the "run" position but do not start the car. Testing for Engine Trouble Codes With the ignition "off", insert a jumper wire between the A & B terminals. These terminals are used to test for engine trouble codes, fuel pump operations, engine light functionality and automatic TCC operation Results are given in milligrams per deciliter (mg/dL). Ask your healthcare provider what your test results mean for you. Your test results may not mean you have a problem. Testing Codes & Understanding the ALDL Connector Testing Codes & Understanding the ALDL Connector Test results may vary depending on your age, gender, health history, the method used for the test, and other things.
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