Suzuki Grand Vitara XL-7 Service Manual page 188

TROUBLESHOOTING
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 CKP Sensor and Its Circuit Resistance Check:
1) With ignition switch OFF, disconnect ECM coupler
(E228).
2) Check for proper connection to ECM at E228-3 and
E228-4 terminals.
3) If OK, check resistance of followings.
Resistance between E228-3 and E228-4 terminals:
315 – 405 Ω at 20_C, 68_F
Resistance between each terminal and ground:
1M Ω or more
Is check result satisfactory?
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?
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?
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
ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM) 6-1-49
ACTION
Fig. for Step 4
YES
Go to Step 2. Go to "ENGINE
DIAG. FLOW
TABLE".
Go to Step 4. Go to Step 3.
Faulty "ORN/BLK" Faulty CKP
wire or "BLU" wire. sensor.
Intermittent trouble Replace or
or faulty ECM. reinstall.
Recheck for
intermittent refer-
ring to "Intermittent
and Poor Connec-
tion" in Section 0A.
(See NOTE.)
Fig. for Step 4.
NO