Suzuki GA413, Service Manual

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6-72 ENGINE GENERAL INFORMATION AND DIAGNOSIS
GA413
supple
INSPECTION
NOTE:
If starter circuit is open (i.e., start signal circuit is OK but starter fails to run), this DTC is stored in memory
at starter switch ON, even though CKP sensor is in good condition.
When starter motor fails to run and this DTC appears, check starter circuit first.
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.
FLOW TABLE”.
2 Is there DTC P1500 (Engine starter signal circuit)? Go to DTC P1500
Diag. Flow Table. Go to Step 3.
3 Check CKP Sensor for Resistance.
1) Disconnect CKP sensor connector with ignition
switch OFF.
2) Then check for proper connection to CKP sensor at
“RED/BLU” and “WHT/BLU” wire terminals.
3) If OK, measure sensor resistance between termi-
nals. See Fig. 1.
CKP sensor resistance: 360 – 460 at 20 C, 68 F
4) Measure resistance between each terminal and
ground.
Insulation resistance: 1 M or more.
Were measured resistance values in step 3) and 4) as
specified?
Go to Step 4. Replace CKP sensor.
4 Check visually CKP sensor and pulley for the follow-
ing. See Fig.2.
Damage
No foreign material attached.
Correct installation.
Are they in good condition?
“RED/BLU” or
“WHT/BLU” wire open
or shorted to ground,
or poor connection at
C23-7 or C23-15.
If wire and connection
are OK, intermittent
trouble or faulty ECM.
Recheck for intermit-
tent referring to “Inter-
mittent and Poor Con-
nection” in Section 0A. Clean, repair or re-
place.
Fig. 1 for Step 3 Fig. 2 for Step 4