Suzuki GRAND VITARA XL-7, Руководство по обслуживанию

Страница: 129 / 597

ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-69
TROUBLESHOOTING
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE
DIAG. FLOW
TABLE”.
2 CKP Sensor and Its Circuit Resistance Check:
1) With ignition switch OFF, disconnect ECM coupler
(C51).
2) Check for proper connection to ECM at C51-14 and
C51-41 terminals.
3) If OK, check resistance of followings.
Resistance between C51-14 and C51-41 terminals:
315 – 405
Ω
at 20
_
C, 68
_
F
Resistance between each terminal and ground:
1M
Ω
or more
Is check result satisfactory?
Go to Step 4. Go to Step 3.
3 CKP Sensor Resistance Check:
1) With ignition switch OFF, disconnect CKP sensor
coupler and remove CKP sensor.
2) Check resistance between terminals of CKP sensor.
(See Fig.)
Were measured resistance values as specified in Step 2?
Faulty “ORN / BLK”
wire or “BLU” wire. Faulty CKP
sensor.
4 CKP Sensor Visual Inspection:
1) Check visually CKP sensor and sensing rotor for the
followings. (See Fig.)
– Damage
– No foreign material attached
– Correct installation
Are they in good condition?
Intermittent trouble
or faulty ECM.
Recheck for
intermittent refer-
ring to “Intermittent
and Poor Connec-
tion” in Section 0A.
(See NOTE.) Replace or
reinstall.
NOTE:
If DTC is checked using generic scan tool only and DTC P0340 (P0335 / P0340) Diag. Flow Table is not per-
formed yet, go to the table before ECM replacement.
Fig. for Step 3 Fig. for Step 4 Fig. for Step 4.