I'm experiencing an intermittent P0AA6 HV leak detected code about once every 20 or 25 times I start my 70K-mile Leaf. It doesn't keep me from running my daily driver, but it is annoying to have to reset the code to be able to drive the car when it randomly appears.
Service writer at the dealer is extremely unhelpful: You have to have an appointment for a diagnosis, so you can't just drive in when the code is on. It's highly unlikely the code will be on when my appointment time arrives, and the code has to be on for them to do anything. So I'm faced with driving it onto the dealer's lot when the code appears, then making an appointment for a diagnosis 2 or 3 weeks in the future, and leaving it. Geez.
My question is: Does the Nissan CONSULT tool provide any additional information to narrow down the fault to any of the 7 or so systems that can generate it? Is there any point to me paying them $150+ to tell me there's a random HV leak somewhere?
What I've done so far:
1) After the code started to appear, I replaced the HV pack last week with an 11-bar known good one. Sadly, I still get the code randomly, but at least now I have the car's range and regeneration ability restored to factory almost-new.
2) While the car was up on jacks, I carefully went through it looking for packrat chews on all the orange cables and no damage was found, although not every inch of every orange cable is visible, of course.
3) In the old pack, I had to replace the precharge resistor, which was burned out because water had entered the HV connector to the battery, sending the car to auction. I've owned and driven the car here in the desert for almost a year without the isolation fault until now, so any water in the cable is long gone, and I didn't find any corrosion in the connector.
My next thought was to unplug the harness to the AC compressor and the PTC heater to remove 2 more variables, but I'm uncertain if that would immobilize the car.
What else could be the most likely cause of a very intermittent HV leak?
Service writer at the dealer is extremely unhelpful: You have to have an appointment for a diagnosis, so you can't just drive in when the code is on. It's highly unlikely the code will be on when my appointment time arrives, and the code has to be on for them to do anything. So I'm faced with driving it onto the dealer's lot when the code appears, then making an appointment for a diagnosis 2 or 3 weeks in the future, and leaving it. Geez.
My question is: Does the Nissan CONSULT tool provide any additional information to narrow down the fault to any of the 7 or so systems that can generate it? Is there any point to me paying them $150+ to tell me there's a random HV leak somewhere?
What I've done so far:
1) After the code started to appear, I replaced the HV pack last week with an 11-bar known good one. Sadly, I still get the code randomly, but at least now I have the car's range and regeneration ability restored to factory almost-new.
2) While the car was up on jacks, I carefully went through it looking for packrat chews on all the orange cables and no damage was found, although not every inch of every orange cable is visible, of course.
3) In the old pack, I had to replace the precharge resistor, which was burned out because water had entered the HV connector to the battery, sending the car to auction. I've owned and driven the car here in the desert for almost a year without the isolation fault until now, so any water in the cable is long gone, and I didn't find any corrosion in the connector.
My next thought was to unplug the harness to the AC compressor and the PTC heater to remove 2 more variables, but I'm uncertain if that would immobilize the car.
What else could be the most likely cause of a very intermittent HV leak?