GS 300 RWD V6-3.0L (3GR-FSE) (2006)
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Auxiliary Heater Element: Description and Operation
PTC HEATER CIRCUIT
DESCRIPTION
The GLW RLY turns on when it receives a signal from the A/C amplifier. As a result, power is supplied to the heater glow plug.
GLW RLY1/RLY2 Relay Signal
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Engine running at 850 rpm or more
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ambient temperature 3°C (37.4°F) or less
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engine coolant temperature 75°C (167°F) or less
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A/C switch setting MAX HOT
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blower switch Lo
