Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 (P001400,P001500,P002400,P002500)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / 2gr-fks Engine Control / Sfi System / Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 (P001400,P001500,P002400,P002500)

DESCRIPTION

Refer to DTC P001313.

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P001400	Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1	Exhaust valve timing is stuck at a certain value when in the advance range (2 trip detection logic).	Valve timing Cam timing oil control solenoid assembly (for exhaust camshaft of bank 1) Camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft of bank 1]) Camshaft timing exhaust gear assembly (bank 1) Oil control valve filter (for exhaust camshaft of bank 1) ECM	Comes on	DTC stored	SAE Code: P0014
P001500	Camshaft Position "B" - Timing Over-Retarded Bank 1	Exhaust valve timing is stuck at a certain value when in the retard range (1 trip detection logic).	Valve timing Cam timing oil control solenoid assembly (for exhaust camshaft of bank 1) Camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft of bank 1]) Camshaft timing exhaust gear assembly (bank 1) Oil control valve filter (for exhaust camshaft of bank 1) ECM	Comes on	DTC stored	SAE Code: P0015
P002400	Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 2	Exhaust valve timing is stuck at a certain value when in the advance range (2 trip detection logic).	Valve timing Cam timing oil control solenoid assembly (for exhaust camshaft of bank 2) Camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft of bank 2]) Camshaft timing exhaust gear assembly (bank 2) Oil control valve filter (for exhaust camshaft of bank 2) ECM	Comes on	DTC stored	SAE Code: P0024
P002500	Camshaft Position "B" - Timing Over-Retarded Bank 2	Exhaust valve timing is stuck at a certain value when in the retard range (1 trip detection logic).	Valve timing Cam timing oil control solenoid assembly (for exhaust camshaft of bank 2) Camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft of bank 2]) Camshaft timing exhaust gear assembly (bank 2) Oil control valve filter (for exhaust camshaft of bank 2) ECM	Comes on	DTC stored	SAE Code: P0025

MONITOR DESCRIPTION

The ECM optimizes the exhaust valve timing using the Variable Valve Timing (VVT) system to control the exhaust camshaft. The VVT system includes the ECM, cam timing oil control solenoid assembly, camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]) and camshaft timing exhaust gear assembly. The ECM sends a target duty-cycle control signal to the cam timing oil control solenoid assembly. The camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]) is operated to control the oil pressure supplied to the camshaft timing exhaust gear assembly based on this signal. The camshaft timing exhaust gear assembly can advance or retard the exhaust camshaft.

If the difference between the target and actual exhaust valve timing is large, and changes in the actual exhaust valve timing are small, the ECM interprets this as the camshaft timing exhaust gear assembly stuck malfunction and stores a DTC.

Example:
A DTC is stored when the following conditions are met:
1. It takes 5 seconds or more to change the valve timing by 5°CA.
2. After the above condition is met, the cam timing oil control solenoid is forcibly activated for 9.5 seconds.

DTC P001400 and P002400 (Advanced Camshaft Timing) is subject to 2 trip detection logic.

DTC P001500 and P002500 (Retarded Camshaft Timing) is subject to 1 trip detection logic.

These DTCs indicate that the camshaft timing exhaust gear assembly cannot operate properly due to a camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]) malfunction or the presence of foreign matter in the camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]).

MONITOR STRATEGY

Related DTCs	P0014: Advanced camshaft timing (for exhaust camshaft of bank 1) P0015: Retarded camshaft timing (for exhaust camshaft of bank 1) P0024: Advanced camshaft timing (for exhaust camshaft of bank 2) P0025: Retarded camshaft timing (for exhaust camshaft of bank 2)
Required Sensors/Components (Main)	Cam timing oil control solenoid assembly (for exhaust camshaft) Camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]) Camshaft timing exhaust gear assembly
Required Sensors/Components (Related)	Crankshaft position sensor VVT sensor Engine coolant temperature sensor
Frequency of Operation	Continuous
Duration	Within 10 seconds
MIL Operation	Advanced camshaft timing: 2 driving cycles Retarded camshaft timing: Immediate
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored	P0013, P0023 (Exhaust VVT oil control solenoid bank1, 2) P0017, P0019 (Exhaust VVT system bank1, 2 - misalignment) P0101, P0102, P0103 (Mass air flow meter) P0117, P0118 (Engine coolant temperature sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (Camshaft position sensor) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust camshaft position sensor)
Battery voltage	11 V or higher
Engine speed	500 to 4000 rpm
Engine coolant temperature	75 to 100°C (167 to 212°F)

TYPICAL MALFUNCTION THRESHOLDS

P0014 and P0024: Advanced Camshaft Timing

Both of the following conditions are met	-
Deviation of actual valve timing and target valve timing	More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT hold duty ratio learned value reaches the upper or lower limit.
Valve timing	No change at advanced valve timing

P0015 and P0025: Retarded Camshaft Timing

Both of the following conditions are met	-
Deviation of actual valve timing and target valve timing	More than 5°CA (Crankshaft Angle) for 5 seconds or more after the VVT hold duty ratio learned value reaches the upper or lower limit.
Valve timing	No change at retarded valve timing

If the difference between the target and actual camshaft timing is greater than the specified value, the ECM operates the VVT actuator for 10 seconds by applying and releasing oil pressure. Then, the ECM monitors the camshaft timing change for 10 seconds.

MONITOR RESULT

Refer to detailed information in Checking Monitor Status.

Click here

P0014, P0015: Exhaust Gas Recirculation/VVT / EX VVT STUCK B1

Monitor ID	Test ID	Scaling	Unit	Description
$35	$85	Multiply by 0.01	Second	Forced movement of cam timing control actuator time

P0024, P0025: Exhaust Gas Recirculation/VVT / EX VVT STUCK B2

Monitor ID	Test ID	Scaling	Unit	Description
$36	$85	Multiply by 0.01	Second	Forced movement of cam timing control actuator time

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) [A].
Turn the Techstream on.
Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [C].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Idle the engine for 3 minutes or more [D].
Enter the following menus: Powertrain / Engine / Trouble Codes [E].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P001400, P001500, P002400 or P002500.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions

HINT:

If the judgment result is NORMAL, the system is normal.
If the judgment result is ABNORMAL, the system has a malfunction.
If the judgment result is INCOMPLETE, perform steps [F] through [H].
[A] to [E]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

Repeat the pattern of accelerating the vehicle from rest to approximately 60 km/h (37 mph) and then decelerating the vehicle 10 to 15 times [F].
CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

Depress the accelerator pedal by a large amount.
Idle the engine for 3 minutes or more [G].
Enter the following menus: Powertrain / Engine / Trouble Codes [H].
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Check the DTC judgment result again.
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system has a malfunction.
- [A] to [H]: Normal judgment procedure.
  The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

Refer to DTC P001313.

Click here

CAUTION / NOTICE / HINT

Abnormal Bank

Timing Over Advanced

(Valve timing is out of specified range)

Timing Over Retarded

(Valve timing is out of specified range)

Bank 1

P001400

P001500

Bank 2

P002400

P002500

If DTC P001400 or P001500 is output, check the VVT system (for exhaust camshaft of bank 1) circuit.
If DTC P002400 or P002500 is output, check the VVT system (for exhaust camshaft of bank 2) circuit.
Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
Bank 2 refers to the bank that does not include the No. 1 cylinder.
DTC P001400, P001500, P002400 or P002500 may be stored when foreign matter in the engine oil is caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. This foreign matter may then be captured by the oil filter.
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.	CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P001400, P001500, P002400 OR P002500)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTC P001400, P001500, P002400 or P002500 is output	A
DTC P001400, P001500, P002400 or P002500 and other DTCs are output	B

HINT:

If any DTCs other than P001400, P001500, P002400 or P002500 are output, troubleshoot those DTCs first.

GO TO DTC CHART

2.	PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EXHAUST VVT OCV DUTY RATIO)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 or Control the Exhaust VVT OCV Duty Ratio Bank 2.

Powertrain > Engine > Active Test

Tester Display
Control the Exhaust VVT OCV Duty Ratio Bank 1

Powertrain > Engine > Active Test

Tester Display
Control the Exhaust VVT OCV Duty Ratio Bank 2

(e) Check the engine speed while operating the cam timing oil control solenoid assembly (for exhaust camshaft) using the Techstream.

OK:

Techstream Operation	Engine Condition
0%	Normal engine speed
100%	Engine idles roughly or stalls

HINT:

Refer to "Data List / Active Test" [Exhaust VVT OCV Control Duty Ratio Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 2 and Exhaust VVT Change Angle Bank 2].

Click here

GO TO STEP 4

3.	CHECK WHETHER DTC OUTPUT RECURS (DTC P001400, P001500, P002400 OR P002500)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and wait for at least 30 seconds.

(f) Turn the engine switch on (IG).

(g) Turn the Techstream on.

(h) Start the engine and warm it up.

(i) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(j) Enter the following menus: Powertrain / Engine / Trouble Codes.

(k) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTC P001400, P001500, P002400 or P002500 is output	B

HINT:

DTC P001400, P001500, P002400 or P002500 may be stored when foreign matter in the engine oil is caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. This foreign matter may then be captured by the oil filter.

CHECK FOR INTERMITTENT PROBLEMS

4.	INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR EXHAUST CAMSHAFT)

(a) Inspect the cam timing oil control solenoid assembly (for exhaust camshaft).

Click here

GO TO STEP 10

5.	INSPECT CAMSHAFT TIMING GEAR BOLT (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY [FOR EXHAUST CAMSHAFT])

(a) Inspect the camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]).

for Bank 1: Click here
for Bank 2: Click here

GO TO STEP 12

6.	CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH)

(a) Remove the cylinder head cover sub-assembly and cylinder head cover sub-assembly LH.

*a	Timing Mark	*b	TDC Timing Mark
*c	Groove	-	-

(b) Turn the crankshaft pulley and align its groove with the TDC timing mark of the timing chain cover.

(c) Check that the timing marks of the camshaft timing gear assemblies and camshaft timing exhaust gear assemblies are aligned with the timing marks of the bearing cap as shown in the illustration.

HINT:

If the timing marks are not as shown, turn the crankshaft one revolution clockwise.

OK:

Timing marks on camshaft timing gear assemblies and camshaft timing exhaust gear assemblies are aligned as shown in the illustration.

HINT:

If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.

GO TO STEP 8

7.	INSPECT OIL CONTROL VALVE FILTER (FOR EXHAUST CAMSHAFT)

*A	for Exhaust Camshaft of Bank 1	*B	for Exhaust Camshaft of Bank 2
*1	Oil Control Valve Filter	-	-

(a) Remove the oil control valve filter (for exhaust camshaft of bank 1) or oil control valve filter (for exhaust camshaft of bank 2).

for Bank 1: Click here
for Bank 2: Click here

(b) Check that the filter is not clogged.

OK:

Filter is not clogged.

GO TO STEP 14

REPLACE OIL CONTROL VALVE FILTER (FOR EXHAUST CAMSHAFT)

8.	CHECK ENGINE MECHANICAL SYSTEM

(a) Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.

HINT:

Perform "Inspection After Repair" after repairing or replacing the engine mechanical system.

Click here

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

9.	CHECK WHETHER DTC OUTPUT RECURS (DTC P001400, P001500, P002400 OR P002500)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and wait for at least 30 seconds.

(f) Turn the engine switch on (IG).

(g) Turn the Techstream on.

(h) Start the engine and warm it up.

(i) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(j) Enter the following menus: Powertrain / Engine / Trouble Codes.

(k) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTC P001400, P001500, P002400 or P002500 is output	B

CHECK FOR INTERMITTENT PROBLEMS

REPLACE ECM

10.	REPLACE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR EXHAUST CAMSHAFT)

(a) Replace the cam timing oil control solenoid assembly (for exhaust camshaft).

Click here

11.	INSPECT CAMSHAFT TIMING GEAR BOLT (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY [FOR EXHAUST CAMSHAFT])

(a) Inspect the camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]).

for Bank 1: Click here
for Bank 2: Click here

GO TO STEP 13

12.	REPLACE CAMSHAFT TIMING GEAR BOLT (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY [FOR EXHAUST CAMSHAFT])

(a) Replace the camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]).

for Bank 1: Click here
for Bank 2: Click here

13.	PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EXHAUST VVT OCV DUTY RATIO)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 or Control the Exhaust VVT OCV Duty Ratio Bank 2.

Powertrain > Engine > Active Test

Tester Display
Control the Exhaust VVT OCV Duty Ratio Bank 1

Powertrain > Engine > Active Test

Tester Display
Control the Exhaust VVT OCV Duty Ratio Bank 2

(e) Check the engine speed while operating the cam timing oil control solenoid assembly (for exhaust camshaft) using the Techstream.

OK:

Techstream Operation	Engine Condition
0%	Normal engine speed
100%	Engine idles roughly or stalls

HINT:

Refer to "Data List / Active Test" [Exhaust VVT OCV Control Duty Ratio Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 2 and Exhaust VVT Change Angle Bank 2].

Click here

END

14.	REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

(a) Replace the camshaft timing exhaust gear assembly.

Click here

HINT:

Perform "Inspection After Repair" after replacing the camshaft timing exhaust gear assembly.

Click here

15.	CHECK WHETHER DTC OUTPUT RECURS (DTC P001400, P001500, P002400 OR P002500)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and wait for at least 30 seconds.

(f) Turn the engine switch on (IG).

(g) Turn the Techstream on.

(h) Start the engine and warm it up.

(i) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(j) Enter the following menus: Powertrain / Engine / Trouble Codes.

(k) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTC P001400, P001500, P002400 or P002500 is output	B

END

REPLACE ECM

Camshaft Position "B" - Actuator Bank 1 Circuit Open (P001313,P002313)

Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A (P001600,P001800)

See More:

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 (P001400,P001500,P002400,P002500)

Camshaft Position "B" - Actuator Bank 1 Circuit Open (P001313,P002313)

Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A (P001600,P001800)

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