Suzuki Intruder VZR1800 Service Manual page 253

Step 2
1) Turn the ignition switch OFF.
2) Disconnect the STVA lead wire coupler.
3) Check the continuity between each terminal and ground.
$ STVA continuity: ∞ Ω (Infinity)
4) If OK, then measure the STVA resistance (between Black
wire A and Pink wire B) and (between Green wire C and
W/BI wire D).
$ STVA resistance: Approx. 7 Ω
! 09900-25008: Multi-circuit tester set
% Tester knob indication: Resistance (Ω)
Is the resistance OK?
• W/B, P/W, Green and B/Lg wire open or shorted
to ground, or poor 1, 2, H and I connection
• 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.
• Loose or poor contacts on the ECM coupler.
NO
• Replace the STVA with a new one.
5) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
(Terminal – Ground)
(B/Lg A – P/W B)
(Green C – W/B D)
FI SYSTEM DIAGNOSIS
2
2
2
ECM coupler (Harness side)
(Black)
5-59
(Gray)