P0113 and Active Handling Warming Up Issues

My mag red 6 speed 99 has been problem free since I bought it until last night. I've never see a Active Handling Warming message on my DIC. My friend
see's it all the time on his 04 and it goes out within 30 sec each time. Well mine last night did not go for about 10 minutes and a check engine light came up while the active handling light was illuminated. The AH light eventually did go out after about 15 min of driving with a message saying the system was warm.
This morning I went to a friends garage to look into the Engine light. While going over the AH warming message came up again and stayed on for about 10 miles. It did go out before I got to the shop. We found a P0113 code. We cleared it and ran the motor. The light came back on after putting about 5 miles. I got a new temp sensor (the one that goes in the bellows just in front of the TB,) cleared the fault. Drove home with no problems. About an hour later took the car out and the check engine light came on again. Same code P0113. During this entire ordeal the AH warming would come and eventually go away. But it would take about 15-20 min for that to happen.
Can these two problems be tied together? I have the download device that connects under the column to get the codes. All I'm seeing is the P0113. If there were codes for the AH systems should I be seeing them there or is there another location to download a different computer? If these are two different problems what else can be causing the P113 code? Is there another sensor I should be looking at? What is actually warming up when this message is being displayed? I've never gotten the service message.
--
Jim



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It's not the sensor, the sensor is receiving a high voltage, P0113 Intake Air temperature (IAT) Sensor Circuit High Voltage -B.
Open the DIC by the "diagnostic display" mode entered by the following procedure: 1) turn on the ignition but don't start the engine.
2) press the "reset" button to turn off any warning messages
3) press and hold "options" and
4) while holding "options", press "fuel" four times within a 10-second period.
Initially, the on-board diagnostics go into the "automatic" mode which shows each module's DTCs in a pre-set sequence.
See if you get the same information.
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A problem with the IAT results in the car thinking the temp is below 16F which will put the car into the AH Warming Up mode.
Check the wiring and connector going to the IAT first. Often that is where the problem is. If that doesn't change the situation, then change the IAT.
If you need more help, check out www.c5forum.com or www.corvettemechanic.com

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wrote:

Thanks for all the inputs. I thought changing the sensor fixed it but it repeated later last night. I'll look at the connector....plan on changing it out.
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