YH4
GRAND
VITARA
TERMINAL ARRANGEMENT OF ECM (PCM)
COUPLER (VIEWED FROM HARNESS SIDE)
C51-3-20
C51-3-23
6E2-32
ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE)
MASS AIR FLOW SENSOR (MAF SENSOR)
Inspection
NOTE:
Use voltmeter with high-impedance (10 k
/ V minimum) or dig-
ital type voltmeter.
1) Remove ECM (PCM) cover from bracket.
2) With ignition switch OFF, disconnect MAF sensor connector (1).
3) Connect voltmeter to C32-3 terminal (2) of MAF sensor connec-
tor disconnected and ground.
4) Turn ignition switch ON and check that voltage is battery volt-
age.
If not, check if wire harness is open or connection is poor.
5) Turn ignition switch OFF and connect MAF sensor connector to
MAF sensor.
6) Turn ignition switch ON and check voltage between C51-3-23
and C51-3-20 terminal.
Standard voltage:
0.5 – 1.0 V
7) Start engine and check that voltage is lower than 5V and it rises
as engine speed increases.
(Reference data:
1.5 – 1.8 V at specified idle speed)
If check result is not as specified above, cause may lie in wire
harness, coupler connection, MAF sensor or ECM (PCM).
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...