Suzuki SX4 Service Manual page 106

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1A-56 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
"Precautions for DTC Troubleshooting".
Step
1
Was "Engine and Emission Control System Check"
performed?
2
Oil control valve electrical circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection at "C01-60" and "C01-59"
terminals of ECM connector.
3) If OK, measure resistance between "C01-60" and "C01-
59" terminals of ECM connector.
Is resistance below 10
3
Oil control valve electrical circuit check
Was resistance more than 6.5
4
Oil control valve electrical circuit for power short check
1) Turn ON ignition switch.
2) Measure voltage between "C01-60" terminal of ECM
connector and engine ground.
Is voltage below 1 V?
5
Oil control valve electrical circuit for ground short
check
1) Disconnect connector from oil control valve with ignition
switch turned OFF.
2) Measure resistance between "C01-60" terminal of ECM
connector and engine ground.
Is resistance infinity?
6
Oil control valve electrical circuit for ground short
check
1) Measure resistance between "C01-59" terminal of ECM
connector and engine ground.
Is resistance infinity?
7
Oil control valve electrical circuit for short check
1) Disconnect connector from oil control valve with ignition
switch turned OFF.
2) Measure resistance between "C01-60" and "C01-59"
terminals of ECM connector.
Is resistance infinity?
8
Oil control valve electrical circuit check
1) Disconnect connector from oil control valve with ignition
switch turned OFF.
2) Measure resistance between "C01-60" terminal of ECM
connector and "GRN/RED" wire terminal of oil control
valve connector and between "C01-59" terminal of ECM
connector and "GRN/WHT" wire terminal of oil control
valve connector.
Is resistance below 1
Action
?
in Step 2?
?
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
No
Go to "Engine and
Emission Control
System Check".
Go to Step 8.
Go to Step 7.
"RED", "GRN/RED",
"YEL" or "GRN/WHT"
wire is shorted to power
supply circuit.
"GRN/RED" wire is
shorted to ground
circuit.
"GRN/WHT" wire is
shorted to ground
circuit.
"GRN/RED" wire is
shorted to "GRN/WHT"
wire.
"GRN/RED" wire or
"GRN/WHT" wire circuit
is open or high
resistance.

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