Code P1569
#11
05-24-2024, 09:47 AM
Re: Code P1569
I have a 2005 HCH (door sticker states manufactured in Nov 04). I just scored a "slightly used" IMA battery that allegedly came from a 2004 HCH. I ran across this thread and I decided to check resistance at pins 1&2 which comes from the PTC strip sensors at the 6 pin temp sensor socket on the IMA battery. I found that the old battery showed 20 ohms across pins 1&2, The new (To me) battery showed open circuit across pins 1&2. Should I install a 30 ohm resistor across pins 1&2 of the sensor socket on the new IMA battery or should I assume that the firmware in the car will ignore either an open circuit or the presence of 20 ohms. I'm leaning towards installing the resistor so that the "new" battery matches the "old" battery just to err on the side of caution so it doesn't throw a code that I'd have to pay the Honda dealer to remove.
#13
05-25-2024, 08:46 PM
Re: Code P1569
I had to parallel 4 100 ohm resistors to get 25 ohms. I couldn't find my stash of resistors so I had to jury rig it with resistors that I had floating around. Then I soldered the resistor array to the wires going into pins 1&2 and then I taped them up. Then I installed the new pack into the car and topped it up overnight with a grid charger to 173V. This morning, I disconnected the 12v battery for a minute,re-connected it and started up the Honda. The IMA computer re-calibrated the system and didn't throw any codes and I drove my car all day long without it throwing any codes. Yay!
Thread
Topic Starter
Forum
Replies
Last Post
