2004 freestar pcm connector
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Filed Under (Ford) by admin on 02-03-2011
Some 2006-2007 Freestar and Monterey vehicles may experience a melted or damaged spark plug electrode, malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC’s) P030X, rough idle, engine knock/ping on acceleration. Pre-ignition (which yields these symptoms) may be caused by water entering the powertrain control module (PCM). ACTION: Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE 1. Remove PCM from vehicle. Refer to Workshop Manual (WSM), Section 303-14. 2. Remove the PCM cover by carefully bending back the four (4) retaining clips holding the galvanized metal cover to the top plate. (Figure 1) Figure 1 – Article 07-14-1 3. Look for evidence of water within the PCM (liquid water, rust, water stains or deposits). (Figure 2) If found – obtain a replacement PCM before continuing on to Step 4. If no water is found, continue on to step 4 with the vehicle’s original PCM. Figure 2 – Article 07-14-1 4. Set the PCM top plate in a clean, dry location where the circuitry will be protected from damage. 5. With the PCM cover removed, drill a 1/4″ hole on each of the four (4) corners of the PCM cover. Get as close to the corner as possible. (Figure 3) Figure 3 – Article 07-14-1 6. De-burr the edges on both inside and outside surfaces. (Figure 3) Be sure to vacuum off all chips and wipe off all metal dust and any machining oil. 7. Clean the surfaces of the PCM cover with Motorcraft ZC-21 (Metal Surface Cleaner) or equivalent. Also clean the edges of the PCM top plate. The metal surfaces must be completely clean before proceeding to Step 8. 8. Apply Motorcraft TA-29 Ultra Silicone Sealant to all edges depicted. (Figure 4, 5, 6, 7) Proceed directly to Step 9 – do not let the sealant skin over. NOTE: Motorcraft TA-32 can NOT be used since its constituents may damage the PCM circuitry.
Filed Under (Chevrolet) by admin on 28-08-2010
CAUTION: To prevent possible Electrostatic Discharge damage to the Powertrain Control Module (PCM), Do Not touch the connector pins or soldered components on the circuit. Service of the PCM should normally consist of either replacement of the PCM or a Programmable Read Only Memory (PROM) change. If the diagnostic procedures call for the PCM to be replaced, the engine calibrator (PROM) and PCM should be checked first to see if they are the correct parts. If they are remove the PROM from the faulty PCM and install it in the new service PCM. THE SERVICE PCM WILL NOT CONTAIN A PROM. Diagnostic Trouble Code (DTC) 51 indicates the PROM is installed improperly or has malfunctioned. When DTC 51 is obtained, check the PROM installation for bent pins or pins not fully seated in the socket. If the PROM is installed correctly and DTC 51 still shows, replace the PROM. Important: When replacing the production PCM with a service PCM (controller), it is important to transfer the Broadcast code and production PCM number to the service PCM label. Please do not record on PCM cover. This will allow positive identification of PCM parts throughout the service life of the vehicle. CAUTION: To prevent internal PCM damage, the ignition must be “OFF” when disconnecting or reconnecting power to PCM (for example, battery cable, PCM pigtail, PCM fuse, jumper cables, etc.). REMOVE OR DISCONNECT 1. Negative battery cable. 2. Right side sound insulator. 3. Vacuum center. 4. Connectors to PCM. 5. PCM. 6. PROM access cover. 7. PROM from PCM. INSTALL OR CONNECT 1. PROM to PCM. 2. PROM access cover. 3. PCM. 4. Connectors to PCM. 5. Vacuum center. 6. Right side sound insulator. 7. Negative battery cable.
Filed Under (Audi) by admin on 15-09-2009
Check the following wire connection for open circuit according to wiring diagram:Relay carrier in E-box, plenum chamber, position 3Terminal Harness connector atignition coils Terminal 8 1 Specified value: Wire resistance max 1.5 – If necessary, repair wire connection. Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 – 1.8 Liter 4-Cyl. 5V Turbo Generic Scan Tool, Engi…Page 5 24-158 If no malfunctions are found in wires: – Check voltage supply of Motronic Engine Control Module (ECM) voltage supply relay – J271 – Page 24-158 . – Check activation of Motronic Engine Control
Module (ECM) voltage supply relay – J271 – Page 24-159 . Checking voltage supply If specified value is not obtained:
- Connect multimeter for voltage measurement as follows. Relay carrier in E-box, plenum chamber, position 3
Filed Under (Ford) by admin on 11-05-2010
Some 1999-2004 Navigator, 2002-2003 Blackwood, 2003-2005 Aviator, 2003-2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316. ACTION Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s). SERVICE PROCEDURE
Filed Under (Hyundai) by admin on 25-04-2010
1. At the crank position sensor, check for battery voltage to be present on the Red wire with the key on and cranking. The Black wire should be a good ground and the Blue wire should have 5 volts on it from the computer. One may have to disconnect the crank sensor to check for the 5 volt reference. 2. During crank look for a good 5 volt square wave signal on the Blue wire. 3. Check at the ignition coils for good battery voltage key on and cranking. If there is a loss of voltage during crank check the ignition failsafe relay. 4. Check for any stored engine codes. Crankshaft Position (CKP) Sensor Ignition Failsafe Sensor The ignition failsafe sensor supplies battery voltage to the ignition coils. The ignition coils can look like they have good battery voltage key on but during crank the ignition failsafe relay can stop sending voltage to the ignition coils.