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Home >> Toyota >> 2003 >> Highlander Base, 2.4 D, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 878 (Suspension Control System) >> DTC/Circuit Diagnosis >> DTC C1802: Compressor Relay >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
DTC CONSULT Diagnostic item is detected when... Probable malfunction location
C1802 COMPRESSOR RELAY
  • Driving transistor for the compressor relay is OFF and monitor voltage continues at a high level for more than 10 seconds.
  • Driving transistor for the compressor relay is ON and monitor voltage continues at a low level for more than 5 seconds.
 Compressor motor relay. Refer to "COMPONENT FUNCTION CHECK ".
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