1B-1 Aux. Emission Control Devices:
Engine
Aux. Emission Control Devices
Diagnostic Information and Procedures
EGR System Inspection
S7RS0B1204001
1) Connect SUZUKI scan tool to data link connector
(DLC) with ignition switch turned OFF.
2) Turn ON ignition switch and erase DTC using
“CLEAR DTC” in “TROUBLE CODES” menu.
3) Start engine and warm it up to normal operating
temperature, then select “DATA LIST” mode on scan
tool.
4) Make sure that vehicle condition is as follows.
• Vehicle speed = 0 km/h (0 KPH)
• Engine speed ≤ 900 rpm
• Engine coolant temp. ≥ 90 °C, 164 °F
5) With engine idling (without depressing accelerator
pedal), open EGR valve by using “STEP EGR” mode
in “MISC TEST” menu. In this state, as EGR valve
opening increases engine idle speed drops. If not,
possible cause is clogged EGR gas passage, stuck
or faulty EGR valve.
Repair Instructions
EVAP Canister Purge Inspection
S7RS0B1206001
NOTE
Before inspection, check to make sure that gear shift lever is in neutral position (with A/T model,
selector lever in “P” range) and that parking brake lever is pulled all the way up.
1) Disconnect purge hose (1) from EVAP canister (2).
2) Place finger against the end of disconnected hose and check that vacuum is not felt there when engine is cool and
running at idle speed. If check result is not satisfactory, check EVAP canister purge valve, wire harness and ECM.
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full open)
Step EGR
Step EGR Flow Duty 21 %
Step EGR (con) 23%
Engine Speed 771 RPM
Desired Idle 698 RPM
IAC Flow Duty 20.0 %
Ignition Advance 11.5 BTDC
Closed Throttle Pos ON
1
2
I4RS0B120001-01
1
2
I6RS0C120001-01
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