fearlesschicken
New member
- Joined
- Jan 4, 2024
- Messages
- 1
Hi, I have a 2011 Leaf with a 2018 (totalled car) 40 kwh battery swap done with a 2 port can-bridge and an ev-enhanced battery adapter cable.
While the car will drive fine during most times, I have had these DTCs pop up when stopped and once as soon as I turned on the car for the first time that day. I would then have:
. Now it really gives me anxiety driving this car because I never know when these codes will pop! Help!
I believe the HV codes are related to the battery swap and are not causing issues (2011-2012: Some permanent fault codes on after battery upgrade · Issue #8 · dalathegreat/Nissan-LEAF-Battery-Upgrade). I am unsure of the L-ION code but they are persistent like the HV code.

While the car will drive fine during most times, I have had these DTCs pop up when stopped and once as soon as I turned on the car for the first time that day. I would then have:
- Put on the hazards and feel embarrassed being stuck in traffic
- Open up leafspy and read the codes
- Clear the EPS, BRAKE, ABS codes (usually in this order)
- Cycle off/on the car and hope its all cleared, if not repeat clearing of any codes
- Be able to drive again
- Drive for seemingly random miles and have it happen again at the next stop.
I believe the HV codes are related to the battery swap and are not causing issues (2011-2012: Some permanent fault codes on after battery upgrade · Issue #8 · dalathegreat/Nissan-LEAF-Battery-Upgrade). I am unsure of the L-ION code but they are persistent like the HV code.
