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Yesterday afteroon, I noticed a stunning lack of power when I tried to accellerate into traffic. Looking at the assist gauge verified that I was receiving no assist. Battery gauge was nearly full (as always), regen and auto stop functioned as normal. I continued driving slowly and carefully, observing what was happening. After several nice long regen brakes, the battery was totally topped off and regen ceased to be available (as expected). So I drove home, shut the car off, then turned it back on. Tore down the street a few times and had full assist as normal. Chalking it up to random weirdness, I went about my normal evening business of eating, working on my RX-7, and sleeping.
Fast forward to this morning. After starting the car and backing out of the driveway, I was again surprised to find no assist. As the car warmed up, idle stop began to function as normal, as did regen. I had no choice but to get through my morning service calls, and worry about the afterwards. During my morning routine, the check engine light came on. Still had regen and auto stop, just no assist.
Once back at the shop, I disconnected the 12V battery and tested it. 12.5V no-load, 11.5V load, so it seemed that the DC-DC was not doing any charging. After reconnecting the battery and going through the standard recal, I took the car for a spin. I had assist for about 5 seconds, just long enough to get out of the driveway. After that, nada.
At this point, I figured I would take the car to London Honda as it is still under warrenty and I don't have a code reader. Unfortunately, by disconnecting the battery I cleared the check engine light, and any stored codes. This light did not come back on during my trip to the dealer.
As it stands, London Honda has no idea what's wrong. Everything functions as it should, but no assist or DC-DC. 12V battery is nearly dead, so they have replaced it (I don't think they are aware of how that battery is charged, and the effects of cycling a standard starting battery). Still no code even though the car has been driven by the dealer for an hour or so. The car is still at London Honda, and I am assured that they will troubleshoot it.
This is a weird one...
Fast forward to this morning. After starting the car and backing out of the driveway, I was again surprised to find no assist. As the car warmed up, idle stop began to function as normal, as did regen. I had no choice but to get through my morning service calls, and worry about the afterwards. During my morning routine, the check engine light came on. Still had regen and auto stop, just no assist.
Once back at the shop, I disconnected the 12V battery and tested it. 12.5V no-load, 11.5V load, so it seemed that the DC-DC was not doing any charging. After reconnecting the battery and going through the standard recal, I took the car for a spin. I had assist for about 5 seconds, just long enough to get out of the driveway. After that, nada.
At this point, I figured I would take the car to London Honda as it is still under warrenty and I don't have a code reader. Unfortunately, by disconnecting the battery I cleared the check engine light, and any stored codes. This light did not come back on during my trip to the dealer.
As it stands, London Honda has no idea what's wrong. Everything functions as it should, but no assist or DC-DC. 12V battery is nearly dead, so they have replaced it (I don't think they are aware of how that battery is charged, and the effects of cycling a standard starting battery). Still no code even though the car has been driven by the dealer for an hour or so. The car is still at London Honda, and I am assured that they will troubleshoot it.
This is a weird one...