4WD Branch Line Circuit Check

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.

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the transfer control unit for damage, bend and loose connection (unit side and connector side). Is the inspection result normal?	GO TO 2.	Repair the terminal and connector.
2	CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of transfer control unit. Check the resistance between the transfer control unit harness connector terminals. Courtesy of SUZUKI OF AMERICA CORP. Is the measurement value within the specification?	GO TO 3.	Repair the transfer control unit branch line.
3	CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the transfer control unit. Refer to [P1801, P1811 POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT ] Is the inspection result normal?	Replace the transfer control unit. Refer to [TRANSFER CONTROL UNIT: REMOVAL AND INSTALLATION ]	Error was detected in the transfer control unit branch line.