Question about 1999 Chrysler Town & Country
ECM fails after approx. 1 month, cleaned and checked grounds, alternator voltage is 14.0, cannot get a straight answer from local service shops other than "It must have been a bad module". After 4 modules? I don't think so.
When a new module is installed, all seems well for a while, then (always when in my garage overnight) when the ignition is turned on, the odometer will not display and the starter will not engage. If I hot wire the starter, the engine will not start. - Time for a new module. - Please help!
Check to see if + wire to starter and alt.are good buy useing temperary wire of same size to jump to each component.I would also check the short braided wire on th starter from where the mian wire connects to starter and then goes into starter.
Posted on Aug 15, 2008
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A/C refrigerant pressure exceeds 1 310 kPa (190 psi).
After the vehicle is shut off if the engine coolant temperature at key-off is greater than 140?°C (284?°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes.
The BCM and PCM/ECM command High Speed Fans on under the following conditions:
Engine coolant temperature reaches 110?°C (230?°F).
A/C refrigerant pressure exceeds 1 655 kPa (240 psi).
When certain DTCs set.
The three relays are located in the under hood fuse / relay box ! You need to have it checked for DTC'S -diagnostic trouble codes ! An you need a GM Tech 2 scan tool !
This diagnostic procedure supports the following DTCs:
DTC P0480 Cooling Fan 1 Relay Control Circuit
DTC P0481 Cooling Fan 2 and 3 or S/P Relay Control Circuit
DTC P0691 Cooling Fan 1 Relay Control Circuit Low Voltage
DTC P0692 Cooling Fan 1 Relay Control Circuit High Voltage
DTC P0693 Cooling Fan 2 and 3 or S/P Relay Control Circuit Low Voltage
DTC P0694 Cooling Fan 2 and 3 or S/P Relay Control Circuit High Voltage
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