Suzuki GRAND VITARA XL-7, Руководство по обслуживанию

Страница: 79 / 597

ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-19
ENGINE BASIC CHECK
This check is very important for troubleshooting when ECM (PCM) has detected no DTC and no abnormality has
been found in visual inspection.
Follow the flow table carefully.
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE
DIAG. FLOW
TABLE”.
2 Check battery voltage.
Is it 11 V or more? Go to Step 3. Charge or replace
battery.
3 Is engine cranked? Go to Step 4. Go to “DIAGNOSIS”
in Section 6G or
6G1.
4 Does engine start? Go to Step 5. Go to Step 6.
5 Check engine idle speed referring to “Idle speed
Inspection” in Section 6E3.
Is check result as specified? Go to Step 11 in
“ENGINE DIAG.
FLOW TABLE”. Go to “Engine
Diagnosis Table” in
this section.
6 Is immobilizer control system equipped?
D
Go to step 7 if
Suzuki scan tool is
available.
D
Go to
“DIAGNOSIS” in
Section 8G if
Suzuki scan tool is
not available.
Go to Step 8.
7 Check immobilizer system malfunction as follows.
1) Execute Data List mode of Suzuki mode using ECM
application of Suzuki scan tool.
Dose Suzuki scan tool indicate communication error
message?
Go to “DIAGNOSIS”
in Section 8G. Go to Step 8.
8 Check fuel supply as follows:
1) Check to make sure that enough fuel is filled in fuel
tank.
2) Turn ON ignition switch for 5 seconds and then OFF.
Repeat this a few times.
Is fuel return pressure (returning sounds) felt from fuel
return hose when ignition switch is turned ON?
Go to Step 10. Go to Step 9.
9 Check fuel pump for operating.
1) Was fuel pump operating sound heard from fuel pump
for about 5 seconds after ignition switch ON and stop?
Go to “LOW
PRESSURE
FUEL SUPPLY
INSPECTION” in
Section 6E3. Go to “Diag. Flow
Table B-1”.
10 Check fuel injector referring to “Fuel Injector Inspection”
in Section 6E3.
Is it in good condition? Go to “Engine
Diagnosis Table” in
this section. Go to “DTC
P0201 / 0202 / 0203 /
0204 Flow Table”.