Question about 1998 Dodge Neon
Cannot find the cooling fan relay on a 1998 plymouth neon. fan will not come on when engine gets hot. DTC is 1491 (rad fan relay control circuit).
rans are good and so are the fuses. want to test the relay next but dont know where it is. anybody help?
On the left(driver's) side of the lower rad support. It's a small flat relay with a plug on the bottom and usually has a blue colored front. held on by two screws. Also, there may be more rad fan relays in the underhood fuse/relay box.
Posted on Feb 27, 2009
This may be a late posting, however for future neon fan relay searchers just look under the battery tray. Remove the battery and battery tray then it will be located on the same wall as the two bolts that hold the bottom of the battery tray. Just before the radiator. Its tough to catch but u can access it from the bottom of the vehicle also. its much simpler just to remove the battery tray. Hope this helps.
Posted on Dec 28, 2009
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Posted on Jan 02, 2017
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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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