YH4
GRAND
VITARA
1. Knock sensor
6-70
ENGINE DIAGNOSIS (G16 / J20 ENGINES)
DTC P0325 (DTC No.43) KNOCK SENSOR CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
DTC DETECTING CONDITION
TROUBLE AREA
Knock sensor output voltage: 3.98 V or more
Knock sensor output voltage: 0.90 V or less
“B” circuit open or shorted to ground
Knock sensor malfunction
ECM malfunction
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition OFF.
2) Turn ON ignition switch and clear DTC by using scan tool and run engine at idle speed for 5 sec. or more.
3) Check DTC by using scan tool.
INSPECTION
STEP
ACTION
YES
NO
1
Was “ENGINE DIAG. FLOW TABLE” performed?
Go to Step 2.
Go to “ENGINE
DIAG. FLOW TABLE”.
2
1) With engine running, check voltage from C51-3-3
terminal of ECM connector to body ground.
2) Is voltage about 0.90 – 3.98 V?
Knock sensor and its
circuit are in good
condition.
Intermittent trouble or
faulty ECM. Recheck,
referring to INTER-
MITTENT TROUBLE
in Section 0A.
Go to Step 3.
3
1) Stop engine.
2) With ignition switch at OFF position, disconnect
knock sensor connector.
3) With ignition switch at ON position, check voltage
from “B” to body ground terminal of knock sensor
connector. See Fig. 1.
4) Is it 4 – 5 V?
Substitute a known-
good knock sensor
and recheck.
“B” wire open, shorted
to ground circuit or poor
C51-3-3 connection.
If wire and connection
are OK, substitute a
known-good ECM 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...