This is an **ECU** PCB and the measurement of resistance between Vcc and GND for the **TC1762 Tricore MCU** in the PCB is **18.7 Ω**. 

I have a reference board, the resistance there is **400 Ω** between Vcc and GND for the same IC. When I power up the PCB in the first board, the MCU gets hot, while it doesn't in the reference board, although the reference board lacks a firmware in the MCU. 

The voltage reading on the Vcc is **3.3 V**. I'm suspicious that this resistance between Vcc and GND is the reason why the PCB's current is higher in the first board, it has **0.41 A**, while in the reference board is **0.26 A**. 

Is **18.7 Ω** between Vcc and GND in this PCB the possible cause for this problem? Given that the there's a problem in the first board, and I was debugging it. Is such resistance can be considered as a **short** between Vcc and GND?