Suzuki Jimny Service Manual page 454

Step
3 Check Idle Air Control System.
1) Connect SUZUKI scan tool to DLC with igni-
tion switch OFF, set parking brake and block
drive wheels. See Fig. 1.
2) Warm up engine to normal operating tem-
perature.
3) Clear DTC and select "MISC TEST" mode
on SUZUKI scan tool.
Is it possible to control (increase and reduce)
engine idle speed by using SUZUKI scan tool?
4 Check Idle Air Control System.
1) Remove IAC valve from throttle boy refer-
ring to "IAC Valve" in Section 6E.
2) Check IAC valve for operation referring to
"IAC Valve" in Section 6E. See Fig. 2.
Is check result satisfactory?
5 Check Wire Harness for Open and Short.
1) Turn ignition switch OFF.
2) Disconnect IAC valve connector.
3) Check for proper connection to IAC valve at
each terminals.
4) If OK, disconnect ECM connector.
5) Check for proper connection to ECM at
E19-6 terminal.
6) If OK, check "Bl/B", "G/Y" and "B/R" circuit
for open and short.
Are they in good condition?
[A] Fig. 1 for Step 3 / [B] Fig. 2 for Step 4
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-97
Yes
Intermittent trouble or
faulty ECM.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0A.
Intermittent trouble or
faulty ECM.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0A.
Replace IAC valve and
recheck.
No
Go to Step 5.
Go to Step 5.
Repair or replace.