Ajzride
Well-known member
- Thread starter
- #1
I was doing some work with the Comma and swapped harnesses at the IPMA, and got a U2108 - Adaptive Cruise Control error. Nothing else useful in the message. Forscan couldn't reset it. Obviously I removed all of the comma gear and was on stock while I was troubleshooting. These were the only two clues I've turned up on the internet:
From the 2017 Manual:
```U2108:62 This DTC sets in the ABS module when the module detects over- braking during automated vehicle deceleration. If the vehicle deceleration exceeds the 1.0 m/s threshold, the DTC is stored and the adaptive cruise control is deactivated until the next ignition cycle. RETRIEVE and REPAIR all non-network diagnostic trouble codes (DTCs) in the CCM.```
From this forum:
```Under 1,000 miles on new F150 PB. Fault occurred after spirited highway entrance. In concurrence came fault code U2108 from the IPMA module, this is just to prevent the user from setting cruise control while the PCM is faulted. In my case the cause was a missing E-Clip on the passenger side turbo wastegate controller arm, lower side. She has a C-Clip on there temporarily until she's at the dealer for a new windshield (which I've been waiting on for weeks). Had to go through the wheel well to get to the damn thing, not a cool morning.```
I didn't think I had a waste gate sensor issues or unexpected decelleratnov error from plugging and unplugging the IPMA harness.
Thankfully unplugging both 12V batteries (powerboats) for 20 minutes seems to have cleared the issue.
Hopefully someone finds this helpful one day.
From the 2017 Manual:
```U2108:62 This DTC sets in the ABS module when the module detects over- braking during automated vehicle deceleration. If the vehicle deceleration exceeds the 1.0 m/s threshold, the DTC is stored and the adaptive cruise control is deactivated until the next ignition cycle. RETRIEVE and REPAIR all non-network diagnostic trouble codes (DTCs) in the CCM.```
From this forum:
```Under 1,000 miles on new F150 PB. Fault occurred after spirited highway entrance. In concurrence came fault code U2108 from the IPMA module, this is just to prevent the user from setting cruise control while the PCM is faulted. In my case the cause was a missing E-Clip on the passenger side turbo wastegate controller arm, lower side. She has a C-Clip on there temporarily until she's at the dealer for a new windshield (which I've been waiting on for weeks). Had to go through the wheel well to get to the damn thing, not a cool morning.```
I didn't think I had a waste gate sensor issues or unexpected decelleratnov error from plugging and unplugging the IPMA harness.
Thankfully unplugging both 12V batteries (powerboats) for 20 minutes seems to have cleared the issue.
Hopefully someone finds this helpful one day.
Sponsored
