P0017

The content of this article and images reflects the changes identified in TSB-10-13-010.

DTC P0017: Crankshaft/camshaft (exhaust) Position Sensor Phase Problem

TECHNICAL DESCRIPTION
- The ECM checks the variable valve timing system for malfunction.

DESCRIPTIONS OF MONITOR METHODS
The close timing of the exhaust valve is faster or slower than the specified value.

MONITOR EXECUTION
Continuous

MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- Not applicable

Sensor (The sensor below is determined to be normal)
- Camshaft position sensor
- Crankshaft position sensor
- Engine coolant temperature sensor
- Throttle position sensor
- Engine oil control valve

DTC SET CONDITIONS

Logic Flow Chart

Logic Flow Chart:

Check Conditions
- Engine speed is between 594 r/min and 1,500 r/min.
- Engine coolant temperature is between 20°C (68°F) and 88°C (190°F).
- Exhaust engine oil control valve is "OFF".
- 1 second has elapsed after the above mentions have been met.

Judgment Criterion
- The close timing of the exhaust valve is faster than -7.7 degrees (ATDC) for 10 seconds.

or

- The close timing of the exhaust valve is slower than 5.4 degrees (ATDC) for 10 seconds.

FAIL-SAFE AND BACKUP FUNCTION
- None

OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 20. OBD- II Drive Cycle

TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
- Timing chain in out of place.
- Loose timing chain.
- Exhaust variable valve timing sprocket tooth coming off.
- ECM failed.

DIAGNOSIS

Required Special Tools:
- MB991958: Scan tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A

STEP 1. Check the exhaust engine oil control valve.
Refer to: engine oil control valve check. Testing and Inspection
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the exhaust engine oil control valve. Then go to Step 2.

STEP 2. Timing chain elongation visual check.
Procedures
Q: Is the check result normal?
YES : Initialize the learning value for the elongation of the timing chain. Refer to Timing Chain maintenance. Procedures Then go to Step 4.
NO : Replace the timing chain and the oil pump chain. Then initialize the learning value for the elongation of the timing chain. Refer to Timing Chain maintenance. Procedures Then go to Step 4.

STEP 3. Check the timing mark on the timing chain.
Q: Is the timing chain out of place?
YES : Repair it. Then go to Step 2.
NO : Go to Step 2.

STEP 4. Test the OBD-II drive cycle.
1. Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 20. OBD- II Drive Cycle
2. Check the diagnostic trouble code (DTC).
Q: Is DTC P0017 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.