Suzuki Burgman UH125 Service Manual page 173

4-58 FI SYSTEM DIAGNOSIS
Is the main relay OK?
• O/W or Y/W wire open or short or poor L con-
nection
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
YES
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the main relay with a new one.
"
When using the multi-circuit tester, do not strongly
touch the terminal of the ECM coupler with a needle
pointed tester probe to prevent the terminal damage
or terminal bend.
4) After repairing the trouble, clear the DTC using SDS tool.
(#4-26)
Step 1 (When indicating P0230-H:)
1) Turn the ignition switch OFF.
2) Remove the front frame cover. (#8-8)
3) Check the fuel pump coupler for loose or poor contacts.
If OK, then check the main relay. (#9-21)
Is the main relay OK?
• O/W wire shorted to power source
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
YES • Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the main relay with a new one.
4) After repairing the trouble, clear the DTC using SDS tool.
(#4-26)
1
ECM coupler (Harness side)
1