Suzuki XL7 2007 Service Manual page 166

1A-61 Engine General Information and Diagnosis:
4. Connect a test lamp between the control circuit
terminal 2 and B+.
5. Command the appropriate CMP actuator solenoid
ON with a scan tool.
NOTE
The voltage must be measured at the control
side of the circuit.
6. Test for less than 1 volt between the probe of the test
lamp and the ECM housing.
➢ If greater than the specified value, test the control
circuit for an open/high resistance. If the circuit/
connections test normal, replace the ECM.
7. Remove the CMP actuator solenoid. Inspect the
CMP actuator solenoid and mounting area for the
following conditions:
– For a torn, restricted, mispositioned, or missing
screens at the CMP actuator solenoid
– For engine oil leaks between the oil sealing lands
of the CMP actuator solenoid—Inspect the lands
of the CMP actuator solenoid for nicks.
– For oil seepage at the CMP actuator solenoid
connector
➢ If a condition is found, replace CMP actuator
solenoid.
8. Ignition OFF, swap the suspected CMP actuator
solenoid with a CMP actuator solenoid that is
operating correctly.
9. Engine idling, command the suspected camshaft
actuator from 0 degrees to 40 degrees and back to
zero while observing the appropriate CMP Angle
Variance parameters, with a scan tool. The CMP
Angle Variance should be less than 2 degrees in
each of the commanded states.
➢ If the CMP Angle Variance is greater than 2
degrees, replace the camshaft position (CMP)
actuator.
10. If all circuits/connections test normal, test or replace
the CMP actuator solenoid.
Component Testing
1. Measure for 7-12 ohms of resistance between the
terminals of the CMP actuator solenoid.
➢ If the resistance is not within the specified range,
replace the CMP actuator solenoid.
2. Test for infinite resistance between each terminal of
the CMP actuator solenoid and the CMP actuator
solenoid housing.
➢ If less than infinite resistance, replace the CMP
actuator solenoid valve.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Camshaft Position Actuator Solenoid Valve Solenoid
Replacement - Bank 1 (Right Side) Intake: "
• "Camshaft Position Actuator Solenoid Valve Solenoid
Replacement - Bank 1 (Right Side) Exhaust: "
• "Camshaft Position Actuator Solenoid Valve Solenoid
Replacement - Bank 2 (Left Side) Intake: "
• "Camshaft Position Actuator Solenoid Valve Solenoid
Replacement - Bank 2 (Left Side) Exhaust: "
• "Camshaft Position Actuator Replacement - Bank 1
(Right Side) Intake: "
• "Camshaft Position Actuator Replacement - Bank 1
(Right Side) Exhaust: "
• "Camshaft Position Actuator Replacement - Bank 2
(Left Side) Intake: "
• "Camshaft Position Actuator Replacement - Bank 2
(Left Side) Exhaust: "
• "Control Module References: " for engine control
module replacement, setup, and programming
DTC P0016, P0017, P0018, or P0019
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
• Review "Strategy Based Diagnosis: " for an overview
of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle
Diagnostic Information: " provides an overview of
each diagnostic category.
DTC Descriptors
DTC P0016: Crankshaft Position (CKP) - Intake
Camshaft Position (CMP) Correlation Bank 1
DTC P0017: Crankshaft Position (CKP) - Exhaust
Camshaft Position (CMP) Correlation Bank 1
DTC P0018: Crankshaft Position (CKP) - Intake
Camshaft Position (CMP) Correlation Bank 2
DTC P0019: Crankshaft Position (CKP) - Exhaust
Camshaft Position (CMP) Correlation Bank 2