NR Series ENGINE CONTROL SFI SYSTEM P001400 Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 P001500 Camshaft Position "B" - Timing Over-Retarded Bank 1
DESCRIPTION
Refer to DTC P001313.
| 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) ·
Camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]) ·
Camshaft timing exhaust gear assembly ·
Oil control valve filter ·
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) ·
Camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]) ·
Camshaft timing exhaust gear assembly ·
Oil control valve filter ·
ECM |
Comes on | DTC stored | SAE Code:
P0015 |
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 (for exhaust camshaft), camshaft timing gear bolt (camshaft timing oil control valve [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 (for exhaust camshaft). The camshaft timing gear bolt (camshaft timing oil control valve [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 VVT controller stuck malfunction and stores a DTC.
Example:
DTC P001400 is stored when the following conditions are met:
It takes 5 seconds or more for exhaust valve timing to change 5 deg(CA).
After the malfunction condition above has been detected, the same condition continues 60 seconds or more.
DTC P001500 is stored when the following conditions are met:
It takes 5 seconds or more for exhaust valve timing to change 5 deg(CA).
After the malfunction condition above has been detected, the same condition continues 9.5 seconds or more.
DTC P001400 (Advanced Camshaft Timing) is subject to 2 trip detection logic.
DTC P001500 (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 [for exhaust camshaft]) malfunction or the presence of foreign matter in the camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]).
MONITOR STRATEGY
| Required Sensors/Components (Main) | Cam timing oil control solenoid assembly (for exhaust camshaft)
Camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]) Camshaft timing exhaust gear assembly |
| Required Sensors/Components (Related) | Camshaft position sensor
Crankshaft position sensor Engine coolant temperature sensor |
| Frequency of Operation | Continuous |
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.
·When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON [A].
Turn the GTS 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 or P001500.
Check the DTC judgment result.
| GTS 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 shows NORMAL, the system is normal.
·If the judgment result shows ABNORMAL, the system has a malfunction.
·If the judgment result shows 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 shows NORMAL, the system is normal.
·If the judgment result shows 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.
CAUTION / NOTICE / HINT
- HINT:
- ·
DTC P001400 or P001500 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 GTS. 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
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTC P001400 or P001500 is output A DTC P001400 or P001500 and other DTCs are output B
- HINT:
-
If any DTCs other than P001400 or P001500 are output, troubleshoot those DTCs first.
A
B
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 / Data List / Exhaust VVT Change Angle Bank 1.
- Powertrain > Engine > Active Test
-
Active Test Display Control the Exhaust VVT OCV Duty Ratio Bank 1 -
Data List Display Exhaust VVT Change Angle Bank 1 - 50004 372 5 398
Read the Data List while performing the Active Test with the engine idling.
- OK:
GTS Operation Data List (Exhaust VVT Change Angle Bank 1) -100% to 100% Varies by 40 DegFR or more
- Result:
Proceed to OK NG
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
- Powertrain > Engine > Clear DTCs
- 50002 372
Turn the ignition switch off and wait for at least 30 seconds.
- Result:
Proceed to NEXT
NEXT
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
Read the pending DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTCs are not output A DTC P001400 or P001500 is output B
- HINT:
-
DTC P001400 or P001500 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.
A
B
Inspect the cam timing oil control solenoid assembly (for exhaust camshaft).
- Result:
Proceed to OK NG
OK
NG
Inspect the camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]).
- Result:
Proceed to OK NG
OK
NG
Remove the cylinder head cover sub-assembly.
Turn the crankshaft pulley and align its cutout with the "0" timing mark of the timing chain cover assembly.
| *a | 14.07° |
| *b | 5.93° |
| *c | Timing Mark |
| *d | "0" Timing Mark |
| *e | Cutout |
Check that the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions shown in the illustration.
- HINT:
-
If the timing marks are not at the positions shown, turn the crankshaft one revolution clockwise.
- OK:
Timing marks on camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions 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.
- Result:
Proceed to OK NG
OK
NG
| *1 | Oil Control Valve Filter |
Remove the oil control valve filter.
Check that the filter is not clogged.
- OK:
Filter is not clogged.
- Result:
Proceed to OK NG
OK
NG
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.
- Result:
Proceed to OK NG
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
- Powertrain > Engine > Clear DTCs
- 50002 372
Turn the ignition switch off and wait for at least 30 seconds.
- Result:
Proceed to NEXT
NEXT
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTCs are not output A DTC P001400 or P001500 is output B
A
B
Replace the cam timing oil control solenoid assembly (for exhaust camshaft).
- Result:
Proceed to NEXT
NEXT
Inspect the camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]).
- Result:
Proceed to OK NG
OK
NG
Replace the camshaft timing gear bolt (camshaft timing oil control valve [for exhaust camshaft]).
- Result:
Proceed to NEXT
NEXT
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 / Data List / Exhaust VVT Change Angle Bank 1.
- Powertrain > Engine > Active Test
-
Active Test Display Control the Exhaust VVT OCV Duty Ratio Bank 1 -
Data List Display Exhaust VVT Change Angle Bank 1 - 50004 372 5 398
Read the Data List while performing the Active Test with the engine idling.
- OK:
GTS Operation Data List (Exhaust VVT Change Angle Bank 1) -100% to 100% Varies by 40 DegFR or more
- Result:
Proceed to OK NG
OK
NG
Replace the camshaft timing exhaust gear assembly.
- HINT:
-
Perform "Inspection After Repair" after replacing the camshaft timing exhaust gear assembly.
- Result:
Proceed to NEXT
NEXT
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
- Powertrain > Engine > Clear DTCs
- 50002 372
Turn the ignition switch off and wait for at least 30 seconds.
- Result:
Proceed to NEXT
NEXT
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTCs are not output A DTC P001400 or P001500 is output B
A
B