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SX4 SportBack, Standard Trans
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Section 75 (Air Conditioning System - Auto A/C)
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Diagnostic Information and Procedures
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DTC B1552: HVAC Control Module Check Sum Error
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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.
B1552: SYMPTOM DIAGNOSIS DESCRIPTION CHART
DTC detecting condition
Trouble area
Data received by HVAC control module from BCM is erroneous continuously.
BCM
HVAC control module