1. Shine a fluorescent light or expose the solar radiation sensor to natural sunlight.
2. Connect the positive (+) lead to terminals B, C and negative (-) lead to terminal A of the solar radiation sensor, and verify that the voltage value is output.

If the voltage is 0 V
, replace the solar radiation sensor.
Resistor [Manual Air Conditioner]
Solar Radiation Sensor Removal/Installation [Full Auto Air Conditioner]Body Sealing [Water Proof And Rust Preventive]
Sealant is applied to the parts where the panels meet and to the hemmed parts
of the door panel and hood panel to provide water proofing and rust proofing.
...
Air Fuel Ratio (A/F) Sensor Heater Control
Outline
Based on the control of the A/F sensor heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
...
Evaporative Emission (Evap) Control System
Purpose, Outline
Prevents release of evaporative gas into the atmosphere.
The intake manifold vacuum introduces evaporative gas to the intake manifold
via the charcoal canister and the purge solenoid valve.
System Diagram
U.S.A. and CANADA
Except U.S.A. and CANADA
...