Engine - MIL ON/DTC P0335 Stored In Memory

S-SB-0025-12

October 15, 2012

Intermittent MIL "ON" DTC P0335

Service Category
Vehicle Interior

Section
Meter/Gauge/Display

Market
USA





Applicability

Introduction

Some 2005 - 2012 model year vehicles equipped with the 2AZ-FE engine may exhibit an intermittent MIL "ON" condition with Diagnostic Trouble Code (DTC) P0335 (Crankshaft Position Sensor "A" Circuit) stored. The intake camshaft gear assembly has been improved to help prevent this condition.





Parts Information





Warranty Information

Repair Procedure

1. Using Techstream review the Freeze Frame Data for DTC P0335.

Does the FFD indicate the engine was at operating temperature and near idle speed when the DTC was stored?

^ Coolant Temperature is approximately 185°F (85°C) or more.

^ Engine RPM is less than 1000 RPM.

YES - Proceed to step 2.

NO - This bulletin does NOT apply.

Refer to the applicable Repair Manual for diagnostic information.





Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:

2. Remove and replace the camshaft timing gear assembly.

For 2006 - 2010 tC repairs, refer to the Repair Manual procedure for 2005 tC to simplify the repair instructions for camshaft removal instead of cylinder head removal.








Refer to TIS applicable model and model year Repair Manual:





3. Identify whether the camshaft timing gear is unlocked or locked. (See Figure 1).

^ If the camshaft timing gear is unlocked it is ready to install.

^ If it is LOCKED follow the steps below to unlock the camshaft timing gear before installing.





A. To disengage the camshaft timing gear lock pin apply and hold approximately 21 psi of air pressure at the oil feed hole located 90 degrees clockwise of the oval slot. (See Figure 2.)

B. With the 21 psi of air still applied to the gear turn the interior assembly counterclockwise. (See black arrow in Figure 2.)





C. Install the timing gear assembly onto the camshaft with the straight pin slightly to the right of the key groove as shown in Figure 3.

D. Turn the camshaft timing gear assembly while pushing it lightly against the camshaft until the straight pin engages the key slot.





E. Check that the camshaft timing gear is fully seated on the camshaft and that there is no clearance between the end of the camshaft and the timing gear. Install the camshaft bolt finger tight.

F. While holding the camshaft with a wrench torque the camshaft bolt.

Torque: 54 N*m (551 kgf*cm, 40 ft*lbf)





G. After torquing the camshaft bolt rotate the camshaft timing gear clockwise while holding the camshaft stationary until the dots are aligned to engage the camshaft timing gear lock pin.

H. Install the timing chain.

Camshaft timing is performed with the camshaft timing gear in the locked position (dots aligned).

4. Clear DTCs using Techstream.

5. Test drive the vehicle to confirm the repair.