Active Handling Warming Up
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Active Handling Warming Up
The short version is....
Did a motor swap. After the install code C1761 RF Position Sensor (Out of Range) keeps coming up. I have had an alignment done since the swap and code is still present.
I have this.........
Can anyone dumb this down for me? What is this position sensor? In the wheelwell? Anybody have experience with this?
Did a motor swap. After the install code C1761 RF Position Sensor (Out of Range) keeps coming up. I have had an alignment done since the swap and code is still present.
I have this.........
DTC C1761 RF Position Sensor
Circuit Description
The ESC module supplies 8 volts to the position sensors. The position sensors use the supplied 8 volts to produce an analog output range of 0-5 volts. The ESC module monitors the position sensor output voltage for an out of range condition. The position sensor normal operating range is 0.35-4.75 volts. An out of range condition is current if the data is not within this range.
Conditions for Setting the DTC
The ESC module senses position sensor output voltage under 0.35 volts or over 4.75 volts.
The condition must be detected for 1 second.
Action Taken When the DTC Sets
Stores a DTC C1761 in the ESC memory.
Provides shocks absorber solenoid control based on the vehicle speed only.
Sends a message to the IPC to display the SERVICE RIDE CONTROL message.
Conditions for Clearing the DTC
A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
The ESC module senses the correct position sensor output voltage (0.35-4.75 volts) for 1 second.
The On-Board Diagnostic (clearing DTCs) feature.
Using a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction to occur:
An intermittent open or short in the RF position sensor circuit.
Bent, disconnected, or damaged position sensor linkage.
When using a scan tool in order to read position sensor voltage, always make sure the vehicle is sitting with the full vehicle weight on its wheels. Measuring position sensor voltage with the vehicle raised and the wheels hanging may lead to incorrect diagnosis.
The malfunction may be set due to a DTC C1768 Position Sensor Supply Overcurrent. If this is the case, go to DTC C1768 table before proceeding with DTC C1761.
An intermittent DTC C1761 may produce a random firm ride condition.
If the DTC is a history DTC, the problem may be intermittent. Using a scan tool, monitor the position sensor voltage while moving the wiring and the connectors. This can often cause the malfunction to occur.
Test Description
Circuit Description
The ESC module supplies 8 volts to the position sensors. The position sensors use the supplied 8 volts to produce an analog output range of 0-5 volts. The ESC module monitors the position sensor output voltage for an out of range condition. The position sensor normal operating range is 0.35-4.75 volts. An out of range condition is current if the data is not within this range.
Conditions for Setting the DTC
The ESC module senses position sensor output voltage under 0.35 volts or over 4.75 volts.
The condition must be detected for 1 second.
Action Taken When the DTC Sets
Stores a DTC C1761 in the ESC memory.
Provides shocks absorber solenoid control based on the vehicle speed only.
Sends a message to the IPC to display the SERVICE RIDE CONTROL message.
Conditions for Clearing the DTC
A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
The ESC module senses the correct position sensor output voltage (0.35-4.75 volts) for 1 second.
The On-Board Diagnostic (clearing DTCs) feature.
Using a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction to occur:
An intermittent open or short in the RF position sensor circuit.
Bent, disconnected, or damaged position sensor linkage.
When using a scan tool in order to read position sensor voltage, always make sure the vehicle is sitting with the full vehicle weight on its wheels. Measuring position sensor voltage with the vehicle raised and the wheels hanging may lead to incorrect diagnosis.
The malfunction may be set due to a DTC C1768 Position Sensor Supply Overcurrent. If this is the case, go to DTC C1768 table before proceeding with DTC C1761.
An intermittent DTC C1761 may produce a random firm ride condition.
If the DTC is a history DTC, the problem may be intermittent. Using a scan tool, monitor the position sensor voltage while moving the wiring and the connectors. This can often cause the malfunction to occur.
Test Description
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,817
From: Charlotte, NC (formerly Endicott, NY)
That code doesn't have anything to do with Active Handling Warming Up. That is one of the wheel position sensors for the F45 suspension option. Active handling is a feature of the ABS and has nothing to do with the suspension.
You should check the wiring to the sensor. Probably got screwed up in the motor install. Check for broken, torn or smashed wires/connectors.
Bill
You should check the wiring to the sensor. Probably got screwed up in the motor install. Check for broken, torn or smashed wires/connectors.
Bill
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
So when I delete the F45 RPO code from the BCM I will not have to worry about this wheel position sensor code?
If that code is not causiing the active handling warming up message than what is? That is the only code the car is throwing. The car was aligned after the front end was apart. I had the steering wheel tied to the shifter so I can not see how it was rotated. What else could cause this?
If that code is not causiing the active handling warming up message than what is? That is the only code the car is throwing. The car was aligned after the front end was apart. I had the steering wheel tied to the shifter so I can not see how it was rotated. What else could cause this?
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
So when I delete the F45 RPO code from the BCM I will not have to worry about this wheel position sensor code?
If that code is not causiing the active handling warming up message than what is? That is the only code the car is throwing. The car was aligned after the front end was apart. I had the steering wheel tied to the shifter so I can not see how it was rotated. What else could cause this?
If that code is not causiing the active handling warming up message than what is? That is the only code the car is throwing. The car was aligned after the front end was apart. I had the steering wheel tied to the shifter so I can not see how it was rotated. What else could cause this?
It is my understanding that the system needs to calibrate itself and if you make a lot of turns just after start up the car it will not calibrate as quickly as it wants and display that message. The car will calibrate itself and the message will go away.
It is not really a problem and I am not sure why GM even put that message in place. If they insist on a message, Active Handling Calibrating would be more appropriate.
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Active Handling Warm up is a message that can show up occasionally on a vette. I have only seen it show up once. When it does happen, it normally happens when you first start the car and move it while giving it a lot of steering input.
It is my understanding that the system needs to calibrate itself and if you make a lot of turns just after start up the car it will not calibrate as quickly as it wants and display that message. The car will calibrate itself and the message will go away.
It is not really a problem and I am not sure why GM even put that message in place. If they insist on a message, Active Handling Calibrating would be more appropriate.
It is my understanding that the system needs to calibrate itself and if you make a lot of turns just after start up the car it will not calibrate as quickly as it wants and display that message. The car will calibrate itself and the message will go away.
It is not really a problem and I am not sure why GM even put that message in place. If they insist on a message, Active Handling Calibrating would be more appropriate.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
I should have mentioned. The active handling warming up message shows up every time I drive the car. Sometimes it takes a minute to show up and sometimes 5 minutes but it always shows up. Its not an occasional thing, something is causing this. I'd like to have it fixed cause I'd like to have active handling next time I hit the track.
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
If the other code is only related to the F45 shocks I wont worry about that at all. I'll be deleting that from the BCM soon anyways. Its just the active handling message I'd like to get taken car of.
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Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Does anybody know why a bad battery would cause this to happen? My battery isn't bad but maybe I have a bad/dirty electrical connection somewhere while I had the front end apart and moving around?
Ideas?
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Interesting. I actually put a new battery in when I did the motor install so the battery should be good.
Does anybody know why a bad battery would cause this to happen? My battery isn't bad but maybe I have a bad/dirty electrical connection somewhere while I had the front end apart and moving around?
Ideas?
Does anybody know why a bad battery would cause this to happen? My battery isn't bad but maybe I have a bad/dirty electrical connection somewhere while I had the front end apart and moving around?
Ideas?
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Battery is only a couple months old but maybe a connection somewhere can be the culprit. At least it is something to look into since not many other ideas are being thrown my way.
Pro
Joined: Oct 2001
Posts: 668
Likes: 26
From: Wadsworth Ohio
Just tonight I got the message "active handling warming up" then about two minutes later got message "active handling warmed up" or something like that, I am not sure of actual wording. This is the first time that has done that. Every thing seems OK.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Ignore it. There is nothing wrong with the car. It is calibrating you active handling system and the second message was there to tell you it completed the calibration.
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
before this problem I had that happen a couple times. Went away and didn't come back.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
non-stock combination's are okay. You can run into problem if there isn't a sufficient difference in size between the front and rear tires. The overall height in the back needs to be higher than the ones in the front. This doesn't normally present as a warm up problem, it normal presents as a service active handling, service traction control message.
Burning Brakes
Joined: Sep 2008
Posts: 939
Likes: 0
From: Clarksville TN
non-stock combination's are okay. You can run into problem if there isn't a sufficient difference in size between the front and rear tires. The overall height in the back needs to be higher than the ones in the front. This doesn't normally present as a warm up problem, it normal presents as a service active handling, service traction control message.