Suzuki Intruder VZR1800 Service Manual page 266

5-72 FI SYSTEM DIAGNOSIS
Step 2
1) Turn the ignition switch OFF.
2) Disconnect the ISC valve coupler.
3) Check the continuity between terminals 1 and 3, terminals
2 and 4.
$ ISC valve continuity: Approx. ∞ Ω (Infinity)
4) If OK, then measure the resistance between terminals 1 and
2, terminals 3 and 4.
$ ISC valve resistance: Approx. 30 ± 1.2 Ω at 20 °C (68 °F)
Is the resistance OK?
YES If wire is OK, intermittent trouble or faulty ECM.
NO Replace the ISC valve with a new one.
5) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
(Terminal 1 – Terminal 3)
(Terminal 2 – Terminal 4)
(Terminal 1 – Terminal 2)
(Terminal 3 – Terminal 4)
2