Components


On-vehicle inspection
RemovalBack-up power source circuit
Description
This is the back-up power source circuit for the air conditioning amplifier.
Power is supplied even when the
ignition switch is turned off and is used for functions such as the diagnostic
trouble code memory.
wiring diagram
Inspection procedure
Inspect fuse (ecu-b2)
...
Terminals of ecu
Check sliding roof drive gear subassembly (sliding roof ecu)
Disconnect the p6 ecu connector.
Measure the resistance and voltage of the wire
harness side connector.
Reconnect the p6 ecu connector.
Measure the voltage of the connector.
If the result is not as speci ...
If a warning light turns
on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your toyota dealer.
Stop t ...