My 2010 Patriot Sport has been experiencing an intermittent C2116 code with accompanying ABS and Traction Control lights. The only correlations that I could see when the problem occurred for me were:
1. When the temperature outside was above about 70F, the problem was more likely to occur, and/or:
2. The code and lights mostly appeared after the Jeep had warmed up and had been parked for several minutes.
3. When the code and lights cleared spontaneously, it was usually in the morning (when it was cooler), and most often before I had started driving or before I hit door-locking speed.
I did have at least one occasion in which I was not able to clear the C2116 code (It eventually cleared by itself).
I did a few low-cost things on speculation such as changing the fuse for the ABS system and probing my refurbished grounds, but as expected, didn’t uncover the problem. I did check the live data using JScan in the ABS system module for the ABS Pump Feed and the Power Supply voltage. The voltages with the engine running were 25.5V and 13.3V respectively both when there was no C2116 and when the code was set.
I took the Jeep into my favorite mechanic today, as the ABS/TRAC lights were on. Fortunately, they stayed on for him, and he could not get them to clear. I had told him about a mention in one of the threads about tapping the ABS module to temporarily ‘fix’ the problem. He found that, by repeated tapping of the ABS module, he could sometimes toggle the ABS Pump Feed voltage between the 25V level and about a 6V level (and back again).
We’ve got a used ABS module on order, which should be in early next week. He told me it would be about $300, which I am assuming is the part cost.
Older threads that I mined for info:
https://www.jeeppatriot.com/posts/818242/
https://www.jeeppatriot.com/posts/802401/
https://www.jeeppatriot.com/posts/1878753/
https://www.jeeppatriot.com/posts/1890791/
I also made use of the applicable parts of the Operation CHARM service manual for the 2010 Patriot: Free Service Manual for the 2010 Jeep Truck Patriot 4WD L4-2.4L | Operation CHARM
1. When the temperature outside was above about 70F, the problem was more likely to occur, and/or:
2. The code and lights mostly appeared after the Jeep had warmed up and had been parked for several minutes.
3. When the code and lights cleared spontaneously, it was usually in the morning (when it was cooler), and most often before I had started driving or before I hit door-locking speed.
I did have at least one occasion in which I was not able to clear the C2116 code (It eventually cleared by itself).
I did a few low-cost things on speculation such as changing the fuse for the ABS system and probing my refurbished grounds, but as expected, didn’t uncover the problem. I did check the live data using JScan in the ABS system module for the ABS Pump Feed and the Power Supply voltage. The voltages with the engine running were 25.5V and 13.3V respectively both when there was no C2116 and when the code was set.
I took the Jeep into my favorite mechanic today, as the ABS/TRAC lights were on. Fortunately, they stayed on for him, and he could not get them to clear. I had told him about a mention in one of the threads about tapping the ABS module to temporarily ‘fix’ the problem. He found that, by repeated tapping of the ABS module, he could sometimes toggle the ABS Pump Feed voltage between the 25V level and about a 6V level (and back again).
We’ve got a used ABS module on order, which should be in early next week. He told me it would be about $300, which I am assuming is the part cost.
Older threads that I mined for info:
https://www.jeeppatriot.com/posts/818242/
https://www.jeeppatriot.com/posts/802401/
https://www.jeeppatriot.com/posts/1878753/
https://www.jeeppatriot.com/posts/1890791/
I also made use of the applicable parts of the Operation CHARM service manual for the 2010 Patriot: Free Service Manual for the 2010 Jeep Truck Patriot 4WD L4-2.4L | Operation CHARM
