One thing about modern technology is that it develops special equipment for different vehicles. In this case, the special equipment will be for medium and heavy-duty trucks. You may not have to worry about this error code if you do not drive one of those vehicles.
This error code seems to be for the Bendix ® ESP ® EC- 80™ Electronic Control Unit (ECU) and it is for three Bendix brand ABS systems. The code stands for PS Not Calibrated and you should see the ATC/ESP light turned on.
To learn more about this fault code, just continue to read our article. It has the information you want to know about so you can handle the repair quickly. Most codes for the brake sensor will start with SPN 1067 and there are 8 FMI codes that go with it.
One explanation would be- Plausibility error brake demand sensor but if you have the Bendix brand of ABS system in your vehicle, then you are looking at PS Not Calibrated and it comes under the heading rake Demand/Load Sensor DTCs.
The problem you are facing will have something to do with the brake sensors that enable your ABS system to work properly. The blink code for Bendix for this specific fault code will be 24-6.
What that blink code is telling you is that you need to perform a static sensor calibration procedure. This procedure is found on page 43 of the Bendix troubleshooting manual.
To do this procedure you need to follow these instructions:
“To perform a calibration procedure of the Brake Demand Sensor(s), ensure that the air system is fully charged. Apply ignition power, and wait 30 seconds. Perform a full application of the service brake and hold for 5 seconds. Release the service brake”
This fault code may appear when you replace your ECU. From what we can tell it is not a performance-inhibiting fault code but one that should not be overlooked or ignored. Just make sure you understand the blink code so that you get to the right code definition.
According to some owners, the location for this sensor is not in a very convenient spot. That is putting their comments mildly as they do not like the positioning of these sensors.
One of the best descriptions for this location is “Sensors are behind the plastic under clutch pedal. They have labeled wires.” Yes, they do have labeled wires. You just need to find the right label and you are good to go.
We watched a video on their location and how to find it and actually, it does not seem that hard to get to after all. We added the video at the end of this post. See what you have to do when you need to change this sensor.
If you have a hose picker, it may make removing the sensor a lot easier. Some owners tried it with a pair of pliers and did not push down on the ring and broke their sensor.
The hose pick should be designed with the right angle you need to get into that space and pop the sensor off. It should push the gold ring at the same time to release the sensor easily.
Someone suggested the following repair- “pull brass colett out and change the O-ring while the sensor is out.” What this does is help stop any air leaks from taking place.
Most of the information is the same here as it is listed above. There are about 4 steps you need to take to resolve this error code when it happens in your Volvo vehicle.
The first step is to check for faults in the ABS controller. If this code is active then you need to go to the 2nd step but if it isn’t, then you need to go to step 4. Step 2 has you checking the update status of the ACom. It needs to be version 220.127.116.11 or greater.
If it is, then you go to step three. If it isn’t, then update the ACom to the most recent version. Step three has you doing the following:
“With both the primary and secondary air tanks full and equal pressures. Open ACOMS and monitor the primary and secondary application pressure sensors.
Without the brakes depressed, pull up on the pedal and record the sensor's readings. Are they both reading 0psi (+- 2 psi)?
With the brakes are fully depressed. Are the two sensors reading full tank Pressure”
If yes, go to step 4 if no, then Diagnose the pressure sensors and
or pressure sensor's circuits. Step 4 asks the question “Are the brake lights on with no pressure being applied to the brake pedal?” If the lights stay on with your hand manipulating the brake pedal you =may have other diagnostic and repair work to do. (source for all this information)
Fortunately, we did not find any different information for this brand of truck. This is one of the keys to the fault code system. Usually, it does not matter the brand of the vehicle when it comes to certain fault codes.
What matters is the manufacturing company that made the component. In this case, it was Bendix and the same fault codes are for the same problem for all models in their ABS system is placed.
That means the repair steps will be the same as well.
This is not a difficult fix and it should be one you can do yourself without worrying about voiding your warranty. However, double-check to make sure you can do this repair on your own first.
As you can see from the video, it is not a complicated repair and if you have the right tools, you can upgrade to the latest version and re-calibrate the sensors in no time.