Hello all,

Had a toyota with a CO error, narrowed is down to a defective transistor.
Replaced, after measuring the other components according to the manual.
Only the DF1 measures another value, book states app. 3Kohm when measured i get 6kOhm, compared to a known good panel it is the same value.
Used an analog meter..

Lift is driving but when touching the brake, it is like the brakes lock.
When going into full speed, C1 appears
My believe is that the RB is the cause to blow up the the transistor.
But the values are good according to manual..

Does anyone know what the problem might be?

Or how to test the powercomponents under load, RB resistor, diode and RG transistor.