Suzuki Intruder VZR1800 Service Manual page 280

5-86 FI SYSTEM DIAGNOSIS
Step 1 (When indicating P1658:)
1) Turn the ignition switch OFF.
2) Remove the lower frame cover. (#7-8)
3) Check the EXCVA motor coupler for loose or poor contacts.
Is the contacting OK?
YES Go to Step 6.
Loose or poor contacts on the EXCV motor cou-
NO
pler
4) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
Step 2
1) Turn the ignition switch OFF.
2) Check the installation of EXCV cables. (#7-12)
If it is necessary, adjust the EXCV cables. (#7-4)
3) Disconnect the EXCVA position sensor lead wire coupler.
4) Turn the ignition switch ON.
5) Measure the voltage between the Red wire terminal 1 and
ground.
6) If OK, then measure the voltage between the Red wire
terminal 1 and B/Br wire terminal 2.
$ Position sensor input voltage: 4.5 – 5.5 V
! 09900-25008: Multi circuit tester set
& Tester knob indication: Voltage (')
Is the voltage OK?
YES Go to Step 3.
• Loose or poor contacts on the ECM coupler
(terminal A or S)
NO
• Open or short circuit in the Red wire or B/Br
wire
7) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
(+ Red – - Ground)
(+ Red – - B/Br)
1
2
2
2
V