Radiator fan always on - driver side
11-13-2015, 10:17 PM
#1
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Radiator fan always on - driver side
The fan is running whenever the ignition is in the ON position. My 95 is running a DIYPNP 2, wired as Brain advised:
2.2k resistor on R14
WLED --> 1L (radiator fan)
Input 1 IN --> 1Q (A/C switch)
Input 1 OUT --> PE1
ALED --> 1J, 4S
Input 2 IN --> 1V
Input 2 OUT --> FLEX
PA0 --> BOOST IN
BOOST OUT --> DB pin 15
Neither RELAY 1 or RELAY 2 is in use.
I'm assuming the issue has to do with the WLED setting. I took a screenshot of TunerStudio.
What numbers are normally here? These were the defaults on the basemap.
2.2k resistor on R14
WLED --> 1L (radiator fan)
Input 1 IN --> 1Q (A/C switch)
Input 1 OUT --> PE1
ALED --> 1J, 4S
Input 2 IN --> 1V
Input 2 OUT --> FLEX
PA0 --> BOOST IN
BOOST OUT --> DB pin 15
Neither RELAY 1 or RELAY 2 is in use.
I'm assuming the issue has to do with the WLED setting. I took a screenshot of TunerStudio.
What numbers are normally here? These were the defaults on the basemap.
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11-14-2015, 12:22 PM
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11-14-2015, 10:17 PM
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11-20-2015, 07:43 AM
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This has to be map configuration or how you built the DIYPNP.
the WLED output is built into the microquirt module. The only way I could see WLED constantly being active is if you something jumped WLED to a ground, or configured your map wrong.
The above settings are exactly what I send with my basemap.
The fan should only come on if the coolant reaches 200°F and TPS is under 85% TPS. Since it's coming on when you have confirmed your coolant temps are reading well under 200°F, I'm leaning heavily to be mechanical.
If you have WLED going straight to 1L, I just don't see how this could be happening.
I'm assuming that the fans run even if you uncheck enabled from the configuration settings above?
If youre having issues with ALED too that really makes me think there's a larger issue. Maybe reflash the firmware (3.4.0), make sure you select option 3 when it prompts for the MS variant.
the WLED output is built into the microquirt module. The only way I could see WLED constantly being active is if you something jumped WLED to a ground, or configured your map wrong.
The above settings are exactly what I send with my basemap.
The fan should only come on if the coolant reaches 200°F and TPS is under 85% TPS. Since it's coming on when you have confirmed your coolant temps are reading well under 200°F, I'm leaning heavily to be mechanical.
If you have WLED going straight to 1L, I just don't see how this could be happening.
I'm assuming that the fans run even if you uncheck enabled from the configuration settings above?
If youre having issues with ALED too that really makes me think there's a larger issue. Maybe reflash the firmware (3.4.0), make sure you select option 3 when it prompts for the MS variant.
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11-21-2015, 01:45 AM
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I'm assuming that the fans run even if you uncheck enabled from the configuration settings above?
If you're having issues with ALED too that really makes me think there's a larger issue. Maybe reflash the firmware (3.4.0), make sure you select option 3 when it prompts for the MS variant.
Last edited by Windows95; 11-21-2015 at 10:58 AM. Reason: links
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11-29-2015, 08:57 PM
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Have you tried plugging the factory ecu back in and turn the key to the accessory on position? When I use my oem ecu, the rad fans only turn on when the required temp is reached. But with the MS installed, the fans turn on as soon as I turn the key to acc on.
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