Aux. Emission Control Devices; Diagnostic Information And Procedures; Egr System Inspection; Repair Instructions - Suzuki Grand Vitara Service Manual
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Also See for Grand Vitara:
- Owner's manual (1736 pages) ,
- Service manual (836 pages) ,
- Supplementary service manual (481 pages)
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1B-1 Aux. Emission Control Devices:
Aux. Emission Control Devices
EGR System Inspection
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 mph)
• Engine speed ≤ 900 rpm
• Engine coolant temp. ≥ 90 °C, 194 °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.
EVAP Canister Purge Inspection
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) Hoist vehicle.
2) Disconnect purge hose (1) from EVAP canister (2).
3) 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.
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Diagnostic Information and Procedures
S5JB0A1204001
Repair Instructions
S5JB0A1206001
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1
Step EGR
Step EGR Flow Duty
Step EGR (con)
Engine Speed
Desired Idle
IAC Flow Duty
Ignition Advance
Closed Throttle Pos
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full open)
2
2
21 %
23%
771 RPM
698 RPM
20.0 %
11.5 BTDC
ON
I5JB0A120001-01
1
I5JB0A120002-01
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