bluto5

2007 Lexus RX 400h - 195,,000 miles. Hit pot hole 2 months ago - all warning lights came on the next day. I turn them off with an Innova 3130 scanner borrowed from Autozone - as there is no loss of brakes, no loss of fluid I keep driving with no problems. Inspected lines - seem fine. Fluid has never been changed since 30,000 miles. Originally, only c1391 ( Abnormal leak of ACC Press) code showed up and stayed off for a few days. Now the lights come back on after 1 day and as of yesterday I have this new c1241 code (low or high power supply voltage) which is more concerning as I have no idea what is causing that. Any help is appreciated in Diagnosing this problem. The actuator motor does seem to run longer than it used to after turning off car and it turns on whenever i open the driver door - even when the car is not on. However, it sounds the same - not squealing or making any other abnormal sounds. So, it seems the system is not holding pressure - BUT WHY???. I also have been searching for a scanner to brake bleed. Might go with the Autel MX 808 ($500+) which Autel rep says will bleed the brakes or the Autel maxipro with brake bleed - might not actually work to bleed brakes but its only $250 and will read and reset codes. I plan to bleed the brakes, check the wiring harnesses first. Any other ideas? Thank you

Margate330

Hi bluto,

Hopefully the new code will give a clue and more direction for your diagnosis.
Now to downplay anyone's scanner but unless another RX400H owner could recommend it for brake issues on a ***HYBRID*** I wouldn't drop the cash $$$. JMHO

There are other Active Tests & Calibrations that are Hybrid specific that Techstrem will do but you won't know if this scanner will do unitl you need it.

iMSQ

https://www.clublexus.com/forums/hyb...l#post10388337