Question about 2000 Plymouth Neon
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Posted on Jan 02, 2017
P0743 is the Torque Converter Circuit Solenoid.The solenoid plug is on the front of the transmission and has a dark green/white and orange/black wire. The dark green/white should have 12V on it from fuse #10 when the ignition is on. The orange/black is a grounding wire from pin 79 of the powertrain controller which should only be grounded when the car is going over 45 mph or so. You could check that the wire is patent between the plug and the powertrain plug (near 0 ohms). The solenoid is a coil or wire so it would have a low, but non-0 resistance, maybe less than an ohm, but still not 0. To really test it you would need an impedence meter, but a good digital ohmmeter should show it to be slightly more resistance than is shown when you test the resistance of the meter leads themselves.If the resistance, the patency, and the 12V supply is all shown to be OK, then I would suspect the solenoid is not functing properly. If you are getting torque converter lock up when you accelerate slowly from 40 to 50 mph then it is working and the code is false. P1899 Park or neutral position switch stuck in park or gear. Recap: P0743 Torque converter clutch circuit faulty, P1899 Position switch to park and nutral stuck. Check the wire harness and look for any clips may be lose or disconnected and wires condition. Good luck and keep me posted. be glad to help
Posted on Jun 06, 2009
the tensioner is on the alternator there is usually a cover over it you need to loosen the 2 screws on the alternator and turn the "adjuster" screw till the belt is loose enough to come off note the whay it is run then install and tighten the new belt it must be very tight or it will slip
Posted on Sep 14, 2009
OBD Code 12 - No Distributor Reference Pulse (Diagnostic Test Active)
The Engine Control Module-ECM uses the distributor reference pulse to calculate the engine speed. On
newer engines, the Crank Shaft Position Sensor performs this function.
OBD Code 46 - Pass-Key II System Error - Circuit out of Frequency Range The ECM receives a signal from the Pass-Key module. When the correct signal is received, the ECM will allow the engine to start and run. Please review the RepairPal article on the GM Pass-Key Anti-theft systems for more information.
OBD Code 43 - Knock Sensor error The ECM receives a signal from the Knock Sensor based on the amount of engine ping detected. The ECM uses information from this sensor to help calculate fuel delivery and spark timing.
OBD Code 55 - End Test.
Hope ehit help (remember comment and rated this).
Posted on Jul 22, 2010
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