Power Source Mode does not Change to ON (IG): Description

When the power switch is pushed with the key in the cabin, the power management control ECU receives signals to switch the power source mode.

Use this troubleshooting procedure when the power source mode does not change to on (IG) but does change to on (ACC).

HINT: 

• When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) auxiliary battery terminal, the power source mode changes to on (IG).
• When the auxiliary battery cable is disconnected and reconnected, the power source returns to the mode it was in before the auxiliary battery cable was disconnected.