Suzuki AN650 2002 - Iac Valve Inspection; Throttle Body Reassembly

7-20 FUEL SYSTEM AND THROTTLE BODY
IAC VALVE INSPECTION
The IAC valve can be checked without removing it from the
throttle body.
• Remove the front box. (9-18)
• Disconnect the IAC valve lead wire coupler.
• Check the resistance between the terminals of the IAC valve.
 Resistance: Approx. 4 Ω
ΩΩ
Ω (at 20 – 24 °C/68 – 75 °F)
[ 09900-25008: Multi circuit tester set
U Tester knob indication: Resistance (Ω
ΩΩ
Ω)
If the resistance is not within the standard range, replace the
IAC valve with a new one.

• Remove the IAC valve cover
1.
• Disconnect the IAC valve lead wire coupler.
• Connect the 12 V battery to the IAC valve terminals for more
than 3 minutes and check for change of the IAC valve temper-
ature from the cold condition.
• If the IAC valve is not warmed up, replace the IAC valve with
a new one.
THROTTLE BODY REASSEMBLY
Reassemble the throttle body in the reverse order of disassem-
bly.
Pay attention to the following points:
• Apply thread lock “1342” to the screws and tighten them.
I 99000-32050: THREAD LOCK “1342”
! Throttle cable bracket screw:
3.5 N·m (0.35 kgf-m, 2.5 lb-ft)
Ω
Do not attempt to disassemble the IAC valve. IAC
valve is available only as an assembly.
Battery