Without Using SUZUKI Scan Tool

Check 2WD/4WD indicator referring to 2WD/4WD INDICATOR OPERATION CHECK .
With ignition switch OFF position, disconnect SUZUKI scan tool if connected and using service wire (1), connect diagnosis switch terminal ("PNK" wire) (2) to ground terminal ("BLK" wire) (3) in diagnosis connector (4).

Fig 1: Identifying Service Wire, Diagnosis Switch Terminal, Ground Terminal & Diagnosis Connector
Courtesy of SUZUKI OF AMERICA CORP.
With ignition switch ON position and leaving engine OFF, read DTC from flashing pattern of 2WD/4WD indicator which represents DTC as shown in example below and write it down. For detail of DTC, refer to DTC TABLE .
NOTE:
- DTC No.12 means none of the malfunction DTCs is identified.
- When more than 2 DTCs are stored in memory, flashing for each DTC is repeated three times starting with the smallest DTC number in increasing order.
  And flashing of these codes is repeated as long as diagnosis terminal is grounded and ignition switch is ON position.
- If DTC is not outputted, check according to DTC is Not Outputted Even When Diagnosis Switch Terminal is Connected to Ground .
Fig 2: Identifying Blinking Pattern
Courtesy of SUZUKI OF AMERICA CORP.
After completing the check, turn ignition switch OFF, disconnect service wire from diagnosis connector.