P0551- P/S switch failure...... that can wait
P0743-Torque converter clutch solenoid/trans relay circuit
P1684- i couldnt find either.lol
The Trans code takes a scan tool to help diagnose. You need the ability to command functions on and off to see voltages and resistances.You can check a few things without the scanner.Heres a pic of the connector to test at, and the wire colors
key off, unplug connector, use a meter to check for system voltage at fused ignition output(dark blue/white wire).Should be greater than 10 volts, if not there is a problem with the feed circuit.The orange adn black wire is the control circuit, use the meter to measure rsistance in the wire from connector to the PCM (powertrain control module) looks liek itis pin #78 in connector 2, wire reamins orange/black. if resistance is more than 5 ohms repair the wire. Nowis when you ned thescanner to command it (TCC solenoid) on so you can check for power at eh plug
Saturday, February 21st, 2009 AT 8:14 AM