2012 Toyota Prius Hybrid System Problems

Try dr Prius , a phone app for hybrid battery assessment. It requires an OBD port dongle; Carista works well. Just do the static test, and post a screenshot.

it’ll look like this:


App is $10~20 IIRC.

 

99 and 44/100ths percent of the time, people who have P0A0D and say "the orange safety switch is correctly placed" simply haven't completed the last step of placing it, where the handle slides sideways to engage the small contacts in the safety interlock circuit.

The other 56/100ths percent of the time, there's still a P0A0D even when that handle is definitely slid over and its small contacts are definitely engaged. In that case, the safety interlock circuit is open somewhere else. Its wiring runs from ground point S1 (high on the right quarter panel) through the safety contacts at the battery, toward the front of the car, through other safety contacts under cover panel(s) on the inverter, to the power management control ECU that reads its status. It passes through a handful of wire-harness-to-wire-harness connectors and junction connectors on the way. It is a dead-simple series circuit, so that an open anywhere along it will give a P0A0D code. There are no skills beyond basic diagram reading and multimeter use needed to attack it.

The P0A0F is a report of the engine not providing power when expected, probably because of the throttle actuator code.

 

152758_P2102_-_Throttle_Actuator_Control_Motor.pdf

code-p2102.240682

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