YH4
GRAND
VITARA
IGNITION SYSTEM (FOR J20 / H25 ENGINES)
6F2-5
No.1 ignition
trigger signal
Oscilloscope waveforms
REF signal of
CMP sensor
2V / Div.
1V/Div.
No.1 ignition
trigger signal
Primary coil
current flow time
Waveforms at specified idle speed
10ms / Div.
H25 Engine
J20 Engine
CMP sensor
2V / Div.
1V / Div.
Primary coil
current flow
time
5ms / Div.
Waveforms at specified idle speed
STEP
ACTION
YES
NO
6
Ignition Coil Assembly Check
1) Substitute a known-good ignition coil assembly
and then repeat Step 2.
Is check result of Step 2 satisfactory?
Malfunction of igni-
tion coil assembly.
Go to Step 7.
7
CMP Sensor Check
1) Check CMP sensor.
Refer to Step 6 or 7 of DTC P0340 Diag.
Flow Table in SECTION 6 or 6-1.
Is check result satisfactory?
Substitute a known-
good ECM (or PCM)
and then repeat Step
2.
Tighten CMP sensor
bolt or replace CMP
sensor.
8
Ignition Timing Check
1) Check initial ignition timing and ignition timing
advance, referring to “Ignition Timing Check
And Adjustment” in this section.
Is check result satisfactory?
System is in good
condition.
Adjust ignition timing
or check ECM (PCM)
input signals related
to this system.
Reference
J20 engine
Oscilloscope waveforms of CMP sensor and No.1 ignition trigger
signal are as shown in figure when connecting oscilloscope be-
tween terminals C51-2-26 and C51-3-26 of ECM (PCM) connec-
tors connected to ECM (PCM), and between terminal C51-2-24 and
ground.
H25 engine
Oscilloscope waveforms of CMP sensor REF signal and No.1 igni-
tion trigger signal are as shown in figure when connecting oscillo-
scope between terminal C51-3-10 of ECM (PCM) connector con-
nected to ECM (PCM) and ground, and between terminal C51-2-13
and ground.
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...