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If your instrument panel (speedometer - aka the Combination Meter) won't turn on, the most common cause is a faulty capacitor on the CM circuit...
Should look like this[ATTACH] .
Where is the HV battery cable that should go to this post on the relay?[ATTACH] .
So (AFAIK), on the Gen2 Prius the downstream (S2) O2 sensor is only used to monitor catalyst function (after the fact). On many other cars, the...
Again, can you post pics of the HV relays and wiring? The ecu actuates the main relay 3 (high current negative) and main relay 1 (low current...
You need a more capable scantool. C1310 is a code in ABS that says "there's a problem in the Hybrid Control ecu". P3000 is a code in Hybrid...
I would look at all of the HV connections that were touched during repair. Can you post some pics of the contactor relays, and the HV fuse cable...
The linked post says the defroster is a 40A fuse, which is the green one. I usually have to gently grab those with needle nose pliers and wiggle...
I suppose you could check the relay that controls the CHS pump. Lives in the relay box above the engine valve cover.[ATTACH][ATTACH] Posted via...
x2 to bisco. Could be lots of things. Getting codes from all ecu's with a capable scantool would help narrow down the possibilities. That said,...
Me, I would use a "Prius capable" scantool to watch what the evaporator core temperature sensor reads - both when the system works and when it...
Calculated load was originally "current airflow divided by peak airflow"(with BARO correction). Google says that the car makers used different...
According to the wayback machine, DoctorPrius.com was a mobile (refurbished) HV battery installer in the Washington DC area. Posted via the...
R8 is the ABS MOTOR relay (1). That's what the ecu tries to use for normal brake operation. When the ecu turns it on, it should connect B+ power...
If you have Techstream, look at the code list. If there's a snowflake symbol next to a code, then click on the symbol (that's FreezeFrame). The FF...
When the engineers design the ICE, they measure all the sensor inputs (everything except the Air-Fuel or O2 sensors) while figuring out how much...
As mentioned, make sure the brake switch works. What scantool are you using? DrPrius is handy but is very limited. I would use a capable...
A common problem is a water leak that runs down the inside of the body to behind the wheel wells. The source is cracked seam sealer around the...
So, there are two relays for the brake actuator pump. Both just supply power to the pump motor when the ecu turns one of them on. The pump pushes...
I would expect you have to clear the code from ecu memory. .
