2006-2009 Suzuki LT-R450 Service Manual, Page 181Get this manual

2006-2009 Suzuki LT-R450 Service Manual, Page 181

FI SYSTEM DIAGNOSIS Step 1) Connect the TO sensor coupler and ECM coupler2) Insert the needle pointed probes to the lead
voltage OK? .RiOt! 09900-25008: Multi-circuit tester set ECM coupler (Harness side) BrIW, Red or BBr wire open or shorted
to ground, or poor or connection If wire and connection are OK, intermittent trouYES ble or faulty ECMRecheck each terminal
and wire harness for open circuit and poor connection Replace the ECM with known good one, and inspect it again 0 0DO DO
DODD 0 Loose or poor contacts on the ECM coupler NO Open or short circuit Replace the TO sensor with new one ICAUTION I When
using the multi-circuit tester, do not storongly touch the terminal of the ECM coupler with needle pointed tester probe to