SCION xA (EM00D0U)
149
The current is applied at all times through the RDI fuse to TERMINAL 3 of the FAN NO.1 relay.
When the ignition SW is turned on, the current flows through the ECU–IG fuse to FAN NO.1 relay (Coil side) to TERMINAL 6
of the engine control module. At the same time as this current flow, the current from ECU–IG fuse flows to the FAN NO.2
relay (Coil side) to TERMINAL 7 of the engine control module.
1. Low Speed Operation
When the A/C system is operating, the FAN NO.1 Relay is turned on. As a result, the current flows from the RDI fuse to FAN
NO.1 relay (Point side) to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to
TERMINAL 4 to TERMINAL 2 of the A/C condenser fan resistor to TERMINAL 1 to GROUND, and the radiator fan motor
rotates at low speed.
2. High Speed Operation
When the engine control module operated, the FAN NO.1 and NO.2 relay is turned on. As a result, the current flows from the
RDI fuse to FAN NO.1 relay (Point side) to radiator fan motor to TERMINAL 3 of the FAN NO.2 Relay to TERMINAL 5 to
GROUND, and the radiator fan motor rotates at high speed.
: Parts Location
Code See Page Code See Page Code See Page
A1 28 E6 30 R1 29
Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1B 24 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
ID3 36 Engine Room Main Wire and Instrument Panel Wire (Upper Side of the Instrument Panel J/B)
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