Question about 1999 Dodge Neon

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Code 1491 and 1492

Star with the cooling fans, they are supposed to start running wend I turn the AC on or wend the car is very hot. I check the fans motors they works fine by then self, change the relay and temperature sensor, also checks the wires and fuses are OK to the only think left is the PCM I check the wires going to. they are looking OK I want to make sure is not other think because the PCM is not cheap.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: code 1491

1491-radiator fan relay control circut
1492-ambient/battery temp sensor volts to high
check and make sure your radiator fan is coming on
samboiv















Posted on Jun 19, 2008

dgjtex
  • 405 Answers

SOURCE: No power to blower motor resistor

Bad ground is only solution !

Posted on Dec 29, 2008

  • 25 Answers

SOURCE: my 1997 dodge neon sohc auto check engine light is

First, the easy way is to just bypass the relays all together. Install a switch on the inside of the car like you would fog lights. This will solve the problem of replacing thing after thing and wasting money. Just a $7.00 fix. After doing that unplug all the sensors and then the battery for at least 60 second to reset the computer. Than restart the car and the check engine light should go out, may take a day or so. Same thing with your gas cap, re-securing it will take a day or so for the light to go out. Good luck. I love my '97 neon.

Posted on May 10, 2009

joe7379
  • 93 Answers

SOURCE: 2000 Caravan-Engine cooling fans not running, replaced temperature sensor and fan relay, still not working-HELP

Did you replace the sensor by the thermostat in the engine block or the one under the drivers headlight, There are two, the one next to the thermostat controls the temp gauge in the vehicle. the one under the headlight assembly controls the actual fans and is a electronic module. You have to remove the head light assembly to get to it.

Joe

Posted on May 29, 2009

  • 534 Answers

SOURCE: blower motor will not work

Do further tests at the relay to ascertain whether the fault lies before or after the relay.
Check power availability at the supply side of the relay contacts - should have 12v from a supply fuse on one side of the normally open contact (note -this supply may only be available when Ign or Acc sw is on).
If power supply is ok at the relay contact, check control input to relay operate coil.

If a ground (or 12v) operates the relay, operate the relay with a local ground (or 12v) and check blower motor runs.

If all above OK, check control signal from fan switch is arriving at the relay control coil.- if not trace wiring back to the switch.

Posted on Jul 03, 2009

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Code 1491


1491-radiator fan relay control circut
1492-ambient/battery temp sensor volts to high
check and make sure your radiator fan is coming on
samboiv















Jun 18, 2008 | 1999 Dodge Neon

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