Suzuki Jimny Service Manual page 444

Step
4 With ignition switch at ON, check voltage
between E19-28, 17, 29, 18 terminals of ECM
and body ground. See Fig. 2.
Is voltage within 10 – 14 V?
5 Do you have SUZUKI scan tool?
6 Check EGR system referring to "EGR System"
in Section 6E.
Is check result satisfactory?
7 1) Disconnect EGR valve connector with igni-
tion switch OFF.
2) Check voltage between "Bl/B" wire terminal
(2) of EGR valve connector (1) and body
ground with ignition switch ON. See Fig. 1.
3) Are they about 10 – 14 V?
8 Check EGR valve referring to "EGR System" in
Section 6E.
Is it good condition?
[A] Fig. 1 for Step 7 / [B] Fig. 2 for Step 3 and 4
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-87
Yes
Go to Step 5.
Go to Step 6.
Substitute a known-good
ECM and recheck.
Go to Step 3.
EGR valve harness
("Gr/B", "Gr/Bl", "Gr/R" or
"Gr" wire) open or short or
poor connector connec-
tion (EGR valve connec-
tor, E19-28, 17, 29, 18) If
wire harness and connec-
tion are OK, substitute a
known-good ECM and
recheck.
No
Go to Step 8.
Stuck or faulty EGR valve
or clogged EGR gas pas-
sage.
If all above are OK, sub-
stitute a known-good
ECM and recheck.
Stuck or faulty EGR valve
or clogged EGR gas pas-
sage.
"Bl/B" wire open or short.
Faulty EGR valve.