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Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 75 (Air Conditioning System - Auto A/C) >> Diagnostic Information and Procedures >> DTC B1504: Sunload Sensor Circuit Malfunction >> DTC Detecting Condition and Trouble Area
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DTC Detecting Condition and Trouble Area

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • When DTC B1502, B1503, B1511 and B1512 are indicated together, it is possible that sensor ground circuit is open.
  • As DTC B1504 cannot be displayed on SUZUKI scan tool, check B1504 in "Not Using SUZUKI Scan Tool" under DTC Check :Auto A/C.
B1504: SYMPTOM DIAGNOSIS DESCRIPTION CHART

DTC Detecting Condition Trouble Area
Sunload sensor signal voltage is higher than or lower than specified value for specified time continuously.
  • Sunload sensor circuit
  • Sunload sensor
  • HVAC control module