Suzuki Swift Sport 2004 Service & Repair Manual page 160

1A-110 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to "Inspection of ECM and Its Circuits".
• Upon completion of inspection and repair work, perform "DTC Confirmation Procedure" and
confirm that the trouble has been corrected.
Step
1 Was "Engine and Emission Control System Check"
performed?
2 CKP sensor and connector for proper installation check
Is CKP sensor installed properly and connector connected
securely?
3 Wire harness and connection check
1) Disconnect connector from CKP sensor with ignition
switch turned OFF.
2) Check for proper connection to CKP sensor at "BLK/
RED", "PNK" and "BLK/ORN" wire terminals.
3) If OK, turn ON ignition switch and check voltage at "BLK/
RED", "PNK" and "BLK/ORN" wire terminals of
disconnected CKP sensor connector.
CKP sensor voltage
Terminal "B+": 10 – 14 V
Terminal "Vout": 4 – 5 V
Terminal "GND": 0 V
Is check result satisfactory?
4 Was terminal "Vout" voltage in Step 3 within specification?
5 Ground circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between "BLK/ORN" wire terminal
of CKP sensor connector and engine ground.
Is measured resistance value less than 3
Action
I2RH0B110048-01
Ω
?
Yes
Go to Step 2.
Go to Step 3.
Go to Step 7.
Go to Step 5.
Go to Step 6.
No
Go to "Engine and
Emission Control
System Check".
Correct.
Go to Step 4.
"PNK" wire is open or
shorted to ground /
power supply circuit.
If wire and connection
are OK, substitute a
known-good ECM and
recheck.
"BLK/ORN" wire is open
or high resistance.