Suzuki 2000 Grand Vitara SQ625 Service Manual page 78

6-74 ENGINE DIAGNOSIS (G16 / J20 ENGINES)
TROUBLESHOOTING (DTC P0335)
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 CKP Sensor and Its Circuit Resistance Check:
1) With ignition switch OFF, disconnect ECM (PCM)
coupler (C51-2).
2) Check for proper connection to ECM (PCM) at
C51-2-19 and C51-2-20 terminals.
3) If OK, check resistance of followings.
Resistance between C51-2-19 and C51-2-20 terminals:
360 – 460 W at 20_C, 68_F (G16)
484 – 656 W at 20_C, 68_F (J20)
Resistance between each terminal and ground:
1M W or more
Is check result satisfactory?
3 CKP Sensor Resistance Check:
1) With ignition switch OFF, disconnect CKP sensor
coupler.
2) Check resistance between terminals of CKP sensor
coupler for G16 engine, between "2" and "3" terminals
for J20 engine and between each terminal and ground.
(See Fig.)
Were measured resistance values as specified in Step 2?
4 CKP Sensor Visual Inspection:
1) Check visually CKP sensor and signal rotor (crankshaft
timing belt pulley for G16 or CKP sensor plate on
crankshaft for J20) for the followings. (See Fig.)
– Damage
– No foreign material attached
– Correct installation
Are they in good condition?
Fig. for Step 3
G16 Engine
Fig. for Step 4.
J20 Engine
ACTION
J20 Engine
Starter
motor
Sensor
plate
YES
Go to Step 2.
Go to Step 4.
Faulty "W/Bl" wire
or "Or/Bl" wire.
Intermittent trouble
or faulty ECM
(PCM). Recheck for
intermittent refer-
ring to "Intermittent
and Poor Connec-
tion" in Section 0A.
Fig. for Step 4
G16 Engine
NO
Go to "ENGINE
DIAG. FLOW
TABLE".
Go to Step 3.
Faulty CKP
sensor.
Replace or
reinstall.