YH4
GRAND
VITARA
6-42
ENGINE DIAGNOSIS (G16 / J20 ENGINES)
TABLE A-2 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK – MIL REMAINS “ON”
AFTER ENGINE STARTS
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
INSPECTION
STEP
ACTION
YES
NO
1
DTC Check:
1) With ignition switch OFF, install scan tool.
2) Start engine and check DTC.
Is there any DTC(s).
Go to Step 2 of
“ENGINE DIAG.
FLOW TABLE” in
this section.
Go to Step 2.
2
MIL circuit Check:
(1) With ignition switch OFF, disconnect couplers
from ECM (PCM).
Does MIL turn ON at ignition switch ON?
“V / Y” wire shorted
to ground circuit.
Substitute a
known-good
ECM (PCM) and
recheck.
TABLE A-3 MIL CHECK – MIL FLASHES AT IGNITION SWITCH ON (vehicle with monitor
connector)
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
INSPECTION
STEP
ACTION
YES
NO
1
MIL Flashing Pattern Check:
1) Turn ignition switch ON.
Does lamp flashing pattern indicate diagnostic trouble
code?
Go to Step 2.
Go to “Diagnosis” in
Section 8G.
2
Diag. Switch Circuit Check:
Is diag. switch terminal connected to ground via service
wire?
System is in good
condition.
“Y” circuit shorted to
ground. If circuit is
OK substitute a
known-good ECM
(PCM) and recheck.
TABLE A-4 MIL CHECK – MIL DOES NOT FLASH OR JUST REMAINS ON EVEN WITH
GROUNDING DIAGNOSIS SWITCH TERMINAL
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
INSPECTION
STEP
ACTION
YES
NO
1
MIL Circuit Check:
1) Turn ignition switch OFF and disconnect connectors
from ECM (PCM).
Does MIL turn ON at ignition switch ON?
“V / Y” circuit shorted
to ground.
Go to Step 2.
2
ECM / PCM Connection Check:
1) Turn ignition switch OFF.
Is connector (E61-29 connection) connected to
ECM / PCM properly?
Go to Step 3.
Poor connector
connection.
3
Diag. switch Terminal Circuit Check:
1) Connect connectors to ECM (PCM).
2) Using service wire, ground E61-29 terminal with
connectors connected to ECM (PCM).
3) Turn ignition switch ON.
Does MIL flash?
“Y” or “B” circuit
open.
Substitute a known-
good ECM (PCM)
and recheck.
Содержание 2000 Grand Vitara SQ416
Страница 75: ...ENGINE DIAGNOSIS G16 J20 ENGINES 6 71 Fig 1 for Step 3...
Страница 179: ...6 1 68 ENGINE H25 ENGINE a Fig for STEP 2 3 a HO2S heater relay...
Страница 190: ...ENGINE H25 ENGINE 6 1 79 a Fig for STEP 2 3 a HO2S heater relay...
Страница 205: ...6 1 94 ENGINE H25 ENGINE Fig for STEP 4 1 Disconnected CMP sensor coupler 2 BI B wire terminal 3 Gr Y wire terminal...
Страница 541: ...6E1 4 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES G16 ENGINE...
Страница 542: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 5...
Страница 543: ...6E1 6 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES J20 ENGINE...
Страница 544: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 7...
Страница 549: ...Or W Bl G Bl Y C51 1 22 C51 1 23 C51 1 10 C51 1 11 6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES...
Страница 552: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 15...
Страница 592: ...6E2 4 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE...
Страница 593: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 5...
Страница 597: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 9...
Страница 661: ...IGNITION SYSTEM FOR J20 H25 ENGINES 6F2 13 INSTALLATION For installation reverse removal procedure...
Страница 723: ...6H 30 CHARGING SYSTEM 17 Make sure that rotor turns smoothly...
Страница 729: ...Prepared by Overseas Service Department 1st Ed April 2000 Printed in Japan Printing April 2000 736...