ECM Branch Line Circuit Check

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). M/T models ECM Harness connector E152 Harness connector M31 A/T models ECM Harness connector E2 Harness connector F32 Is the inspection result normal?	GO TO 2.	Repair the terminal and connector.
2	CHECK HARNESS FOR OPEN CIRCUIT Disconnect the connector of ECM. Check the resistance between the ECM harness connector terminals. Courtesy of SUZUKI OF AMERICA CORP. Is the measurement value within the specification?	GO TO 3.	Repair the ECM branch line.
3	CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the ECM. Refer to the following. QR25DE: [POWER SUPPLY AND GROUND CIRCUIT CHECK ] VQ40DE: [POWER SUPPLY AND GROUND CIRCUIT CHECK ] Is the inspection result normal?	Replace the ECM. Refer to the following. QR25DE: [PROCEDURE AFTER REPLACING ECM ] VQ40DE: [PROCEDURE AFTER REPLACING ECM ]	Error was detected in the ECM branch line.