DTC Check: Notes
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.
CAUTION:
Otherwise, HVAC control module detects "Back-up Power Supply Circuit Malfunction".
- When connecting battery to vehicle for this DTC check, be sure to complete the following procedure at least once before performing this DTC check.
- Turn on ignition switch.
- Turn off ignition switch.
- Wait at least 1 second and turn on ignition switch.
- As DTC B1504 cannot be displayed on SUZUKI scan tool, check B1504 in Not Using SUZUKI Scan Tool .
Otherwise, HVAC control module detects "Back-up Power Supply Circuit Malfunction".