Power Source CircuitLost Communication with ECM / PCM "A" (U0100)
DESCRIPTION
The power management control ECU receives shift position information from 2 sources.
It receives a shift position P signal from the shift lock control unit assembly
via a direct line, and shift position information from the ECM via CAN. If the ...
Random Access Memory (RAM) (P0604)
MONITOR DESCRIPTION
The ECM continuously monitors its internal memory status. This self-check ensures
that the ECM is functioning properly. It is diagnosed by internal "mirroring" of
the main CPU and sub CPU to detect Random Access Memory (RAM) ...
Room Oscillator does not Recognize Key
DESCRIPTION
If the room oscillator does not recognize a key, one of the following may be
the cause: 1) communication between the indoor electrical key oscillator (for front
floor) and key cannot be performed; 2) communication between the indoor electrical ...