Hand-held tester:

WARNING: This page is about a different variant/trim than selected.

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0011, P0012: CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE/TIMING OVER-RETARDED (BANK 1) )

Connect a hand-held tester to the DLC3.
Turn the ignition switch to ON and turn the tester ON.
Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.

Read DTCs.

Result:

DTC OUTPUT RESULT

Display (DTC Output)	Proceed To
P0011 or P0012	A
P0011 or P0012 and other DTCs	B

HINT: If any DTCs other than P0011 or P0012 are output, troubleshoot those DTCs first.

B: GO TO DIAGNOSTIC TROUBLE CODE CHART
A: GO TO NEXT STEP

PERFORM ACTIVE TEST USING HAND-HELD TESTER (OPERATE OCV)

Connect the hand-held tester to the DLC3.
Start the engine and turn the tester ON.
Warm up the engine.
On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.

Check the engine speed while operating the Oil Control Valve (OCV) using the tester.

OK:

TESTER OPERATIONS AND SPECIFIED CONDITIONS

Tester Operations	Specified Conditions
OCV OFF	Normal engine speed
OCV ON	Engine idles roughly or stalls (soon after OCV switched from OFF to ON)

NG: Go to step 4
OK: GO TO NEXT STEP

CHECK WHETHER DTC OUTPUT RECURS ( DTC P0011, P0012: CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE/TIMING OVER-RETARDED (BANK 1) )
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch to ON and turn the tester ON.
3. Clear DTCs (see DIAGNOSTIC TROUBLE CODES CHECK/CLEAR ).
4. Start the engine and warm it up.
5. Switch the ECM from normal mode to check mode using the tester (see CHECK MODE PROCEDURE ).
6. Drive the vehicle for more than 10 minutes.
7. Read DTCs using the tester.
  OK: No DTC output.
1. NG: Go to step 4
2. OK: GO TO NEXT STEP
  END
CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)
1. Remove the cylinder head cover (see REPLACEMENT ).
2. Turn the crankshaft pulley, then align its groove with the timing mark "0" on the timing chain cover.
3. Check that the point marks of the camshaft timing gears are as shown in the illustration.
  If not, turn the crankshaft 1 revolution (360°), then align the marks as above.
  
  OK: The point marks on the camshaft timing gears are as shown in the illustration.
4. Reinstall the cylinder head cover (see REPLACEMENT ).
  
  Fig 1: Checking Valve Timing (Checking Loose And Jumped Teeth On Timing Chain)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: ADJUST VALVE TIMING
2. OK: GO TO NEXT STEP
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY (OCV)
1. Remove the OCV.
2. Measure the resistance between the terminals of the OCV.
  Standard: 6.9 to 7.9 Ω at 20°C (68°F)
3. Apply the positive battery voltage to terminal 1 and negative battery voltage to terminal 2. Check the valve operation.
  OK: The valve moves quickly.
4. Reinstall the OCV.
  
  Fig 2: Inspecting Camshaft Timing Oil Control Valve Assy (OCV)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
2. OK: GO TO NEXT STEP
INSPECT OIL CONTROL VALVE FILTER
1. Remove the generator (see REPLACEMENT ).
2. Remove the OCV filter.
3. Check that the filter is not clogged.
  OK: The filter is not clogged.
4. Reinstall the OCV filter (see OVERHAUL ).
5. Reinstall the generator (see REPLACEMENT ).
  
  Fig 3: Removing OCV Filter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: CLEAN OIL CONTROL VALVE FILTER
2. OK: GO TO NEXT STEP
  REPLACE CAMSHAFT TIMING GEAR ASSY
  
  After replacing the camshaft timing gear, confirm that the DTC output does not recur.
  1. Connect the hand-held tester to the DLC3.
  2. Turn the ignition switch to ON and turn the tester ON.
  3. Clear DTCs.
  4. Start the engine and warm it up.
  5. Switch the ECM from normal mode to check mode using the tester (see CHECK MODE PROCEDURE ).
  6. Drive the vehicle for more than 10 minutes.
  7. Confirm that no DTC is set using the tester.