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Home >> Suzuki >> 2011 >> Grand Vitara Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 141 (Transfer) >> Diagnostic Information and Procedures >> DTC P1801 & DTC P1811: Power Supply Circuit for Transfer Control Unit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Suzuki Equator. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART

DTC SDT Diagnostic item is detected when... Reference
[P1801] *INITIAL START* Due to removal of battery which cuts off power supply to transfer control unit, self-diagnosis memory function is suspended. Diagnosis Procedure 
[P1811] BATTERY VOLTAGE Power supply voltage for transfer control unit is abnormally low while driving.
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