LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2007 >> Grand Vitara Base, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information And Procedures >> Engine Basic Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Basic Check

This check is very important for troubleshooting when ECM has detected no DTC and no abnormality has been found in VISUAL INSPECTION .

Follow the flow carefully.

TROUBLESHOOTING TABLE

Step Action YES NO
1 Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2
  1. Check battery voltage.

Is it 11 V or more? 		 Go to Step 3. Charge or replace battery.
3 Is vehicle equipped with keyless start control system?  Go to Step 4. Go to Step 5.
4 Check keyless start control system malfunction 
  1. Check keyless start control system by referring to KEYLESS START SYSTEM OPERATION INSPECTION .

Is check result satisfactory? 		 Go to Step 5. Keyless start control system malfunction.
5 Is engine cranked?  Go to Step 6. Go to CRANKING SYSTEM SYMPTOM DIAGNOSIS .
6 Does engine start?  Go to Step 7. Go to Step 9.
7
  1. Check engine idle speed by referring to IDLE SPEED AND IAC THROTTLE VALVE OPENING INSPECTION .

Is check result as specified? 		 Go to Step 8. Go to ENGINE SYMPTOM DIAGNOSIS .
8
  1. Check ignition timing by referring to IGNITION TIMING INSPECTION .

Is check result as specified? 		 Go to ENGINE SYMPTOM DIAGNOSIS . Check ignition control related parts by referring to IGNITION TIMING INSPECTION .
9 Check immobilizer system malfunction 
  1. Check immobilizer control system by referring to IMMOBILIZER CONTROL SYSTEM CHECK .

Is it in good condition? 		 Go to Step 10. Immobilizer control system malfunction.
10 Check fuel supply 
  1. Check to make sure that enough fuel is filled in fuel tank.
  2. Turn ON ignition switch for 3 seconds and then OFF.
  3. Repeat step  2 a few times.

Is fuel return pressure (returning sounds) felt from fuel return hose when ignition switch is turned ON? 		 Go to Step 12. Go to Step 11.
11 Check fuel pump for operation 
Was fuel pump operating sound heard from fuel filler for about 3 seconds after ignition switch ON and stop? 		 Go to FUEL PRESSURE CHECK . Go to FUEL PUMP AND ITS CIRCUIT CHECK .
12 Check ignition spark 
  1. Check ignition spark by referring to IGNITION SPARK CHECK .

Is it in good condition? 		 Go to Step 13. Go to IGNITION SYSTEM SYMPTOM DIAGNOSIS .
13 Check fuel injector for operation 
  1. Check fuel injector referring to FUEL INJECTOR CIRCUIT CHECK .

Is it in good condition? 		 Go to ENGINE SYMPTOM DIAGNOSIS . Go to FUEL INJECTOR CIRCUIT CHECK .
scientia non olet · About LEMON Manuals