DESCRIPTION
Refer to DTC P001313.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
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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). |
| Comes on | SAE: 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). |
| Comes on | SAE: 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, camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly) 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 oil control valve assembly (exhaust camshaft timing gear bolt assembly) is operated to control the oil pressure supplied to the camshaft timing exhaust gear assembly based on this signal. The camshaft timing 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.
These DTCs indicate that the camshaft timing exhaust gear assembly cannot operate properly due to a camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly) malfunction or the presence of foreign matter in the camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly).
MONITOR STRATEGY
Required Sensors/Components (Main) | Cam timing oil control solenoid assembly Camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly) Camshaft timing exhaust gear assembly |
Required Sensors/Components (Related) | Crankshaft position sensor Camshaft position sensor Engine coolant temperature sensor |
Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
GTS Display | Description |
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NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
Depress the accelerator pedal by a large amount.
HINT:
HINT:
WIRING DIAGRAM
Refer to DTC P001313.
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CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P001400 OR P001500) |
(a) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
P001400 or P001500 and other DTCs are output | A |
P001400 or P001500 is output | B |
HINT:
If any DTCs other than P001400 or P001500 are output, troubleshoot those DTCs first.
A | GO TO DTC CHART |
|
2. | PERFORM ACTIVE TEST USING GTS (CONTROL THE EXHAUST VVT OCV DUTY RATIO BANK 1) |
(a) Start the engine.
(b) Check the engine speed while operating the cam timing oil control solenoid assembly using the GTS.
Powertrain > Engine > Active Test Active Test Display |
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Control the Exhaust VVT OCV Duty Ratio Bank 1 |
Data List Display |
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Exhaust VVT OCV Control Duty Ratio Bank 1 |
Standard:
GTS Operation | Engine Condition |
---|---|
0% | Normal engine speed |
100% | Engine idles roughly or stalls |
HINT:
Refer to "Data List / Active Test" [Exhaust VVT Hold Learn Value Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 1 and Exhaust VVT Target Angle Bank 1].
Click here
NG | GO TO STEP 5 |
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3. | CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
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4. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001400 OR P001500) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
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. That foreign matter may then be captured by the oil filter.
A | CHECK FOR INTERMITTENT PROBLEMS |
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5. | INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR EXHAUST CAMSHAFT) |
Click here
NG | GO TO STEP 8 |
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6. | INSPECT CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING OIL CONTROL VALVE) |
Click here
NG | GO TO STEP 10 |
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7. | CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN) |
*a | Timing Mark |
*b | TDC Timing Mark |
*c | Groove |
(a) Remove the cylinder head cover sub-assembly.
(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 assembly and camshaft timing exhaust gear assembly are at the positions 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 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.
OK | GO TO STEP 12 |
NG | REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
8. | REPLACE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY |
HINT:
Click here
|
9. | INSPECT CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING OIL CONTROL VALVE) |
HINT:
Click here
OK | GO TO STEP 11 |
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10. | REPLACE CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING OIL CONTROL VALVE) |
HINT:
Click here
|
11. | PERFORM ACTIVE TEST USING GTS (CONTROL THE EXHAUST VVT OCV DUTY RATIO BANK 1) |
(a) Start the engine.
(b) Check the engine speed while operating the cam timing oil control solenoid assembly using the GTS.
Powertrain > Engine > Active Test Active Test Display |
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Control the Exhaust VVT OCV Duty Ratio Bank 1 |
Data List Display |
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Intake VVT OCV Control Duty Ratio Bank 1 |
Standard:
GTS Operation | Engine Condition |
---|---|
0% | Normal engine speed |
100% | Engine idles roughly or stalls |
HINT:
Refer to "Data List / Active Test" [Exhaust VVT Hold Learn Value Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 1 and Exhaust VVT Target Angle Bank 1].
Click here
OK | END |
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12. | REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY |
HINT:
Click here
Perform "Inspection After Repair" after replacing the camshaft timing exhaust gear assembly.
Click here
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13. | CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
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14. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001400 OR P001500) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
P001400 or P001500 is output | B |
A | END |
B | REPLACE ECM |
The fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full.
Full 1/4 Full Empty