Power Source Mode does not Change to ON (READY) [09/2014 - ]: Description

When the electrical key transmitter sub-assembly is in the vehicle and the power switch is pressed, the power management control ECU receives a signal and changes the power source mode. In addition, when the shift lever is in P and the brake pedal is depressed, the hybrid control system can be started by pressing the power switch.

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.

RELATED DATA LIST AND ACTIVE TEST ITEMS

Problem Symptom	Data List Item	Active Test Item
Power source mode does not change to ON (READY)	Power Source Control Stop Light Switch1 Steering Unlock Switch Power Supply Condition IG1 Relay Monitor (Inside) IG2 Relay Monitor (Inside) IG1 Relay Monitor (Outside) IG2 Relay Monitor (Outside) Latch Circuit Shift P Signal Starter Request Signal Smart Access Immobilizer S Code Check L Code Check Engine Start Condition	-

Problem Symptom

Data List Item

Active Test Item

Power source mode does not change to ON (READY)

Power Source Control

Stop Light Switch1
Steering Unlock Switch
Power Supply Condition
IG1 Relay Monitor (Inside)
IG2 Relay Monitor (Inside)
IG1 Relay Monitor (Outside)
IG2 Relay Monitor (Outside)
Latch Circuit
Shift P Signal
Starter Request Signal

Smart Access

Immobilizer
S Code Check
L Code Check
Engine Start Condition