Suzuki GA413, Service Manual

Page: 460 / 1246

6E-50 ENGINE AND EMISSION CONTROL SYSTEM
STEP ACTION YES NO
4 1) Run engine at idle.
2) Monitor A/C ON signal (“A/C MAGNET CLUT”)
parameter on SUZUKI scan tool.
3) Turn A/C switch OFF.
Does scan tool indicate OFF?
Go to Step 5. Substitute a known-good
ECM and recheck.
5 1) Run engine at idle.
2) Monitor A/C ON signal (“A/C MAGNET CLUT”)
parameter on SUZUKI scan tool.
3) Turn A/C switch ON and blower speed selector
switch to any position except OFF.
Does scan tool indicate ON with A/C operating?
A/C signal circuit and
A/C ON signal circuit are
functioning normally.
“Gr/W” wire open or
short.
Poor connection.
Faulty A/C control mod-
ule.
If OK, substitute a
known-good ECM and
recheck.