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Home >> Acura >> 1998 >> Integra GS-R, 4D Sedan >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (A/C-Heater System) >> Self-Diagnostics >> Code C: Sunlight Sensor
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Code C: Sunlight Sensor

WARNING: This page is about a different car, the 1998 Acura 3.5RL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove climate control unit and disconnect 8-pin and 20-pin connectors. Remove sunlight sensor and disconnect connector. See SUNLIGHT SENSOR R & I  . Check for continuity between ground and climate control unit 20-pin connector terminal No. 16 (White/Red wire).
  2. If continuity does exist, repair shorted White/Red wire between climate control unit and sunlight sensor. If continuity does not exist, check for continuity in White/Red wire between climate control unit connector and sunlight sensor connector. If continuity does not exist, repair open White/Red wire between climate control unit and sunlight sensor.
  3. If continuity does exist, check for continuity in Pink/Blue wire between climate control unit 8-pin connector and sunlight sensor connector. If continuity does not exist, repair open Pink/Blue wire between climate control unit and sunlight sensor. If continuity does exist, reconnect sunlight sensor connector.
  4. Test sunlight sensor. See SUNLIGHT SENSOR TESTING  . If sunlight sensor is okay, check for loose wires or poor connections at climate control unit 8-pin and 20-pin connectors and sunlight sensor connector. If connections are okay, substitute known-good climate control unit and recheck. If symptom does not exist after substituting known-good climate control unit, replace original climate control unit.
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