DTC P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1)
DTC P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1)
DTC P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2)
DTC P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2)
HINT: If DTC P0014, P0015, P0024 or P0025 is present, check the VVT (Variable Valve Timing) system.
DESCRIPTION Refer to DTC P0013
DTC No. |
DTC Detection Condition |
Trouble Area |
P0014 P0024 |
Advanced cam timing:
With warm engine and engine speed of between 500
rpm and 4,000 rpm, all conditions (a), (b) and (c) are
met
(2 trip detection logic):
|
|
P0015 P0025 |
Retarded cam timing:
With warm engine and engine speed of between 500
rpm and 4,000 rpm, all conditions (a), (b) and (c) are
met
(1 trip detection logic):
|
|
MONITOR DESCRIPTION
DTC P0014 and P0024
The ECM compares current valve timing with target valve timing, while the engine
is running and after
being warmed up, in order to monitor the VVT system on the exhaust side. Valve
timing is calculated from
the positions of the camshaft and crankshaft. The ECM controls the engine so
that current valve timing
meets target valve timing. If these timings are not met, the ECM determines this
as a malfunction.
DTC P0015 and P0025
The ECM compares current valve timing with target valve timing, while the engine
is running and after
being warmed up, in order to monitor the VVT system on the exhaust side. Valve
timing is calculated from
the positions of the camshaft and crankshaft. The ECM controls the engine so
that current valve timing
meets target valve timing. If these timings are not met, the ECM determines this
as a malfunction.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
Advanced camshaft timing:
Retarded camshaft timing:
If the difference between the target and actual camshaft timings is greater than the specified value, the ECM operates the VVT actuator.
Then, the ECM monitors the camshaft timing change for 5 seconds.
WIRING DIAGRAM
Refer to DTC P0013.
INSPECTION PROCEDURE
HINT:
1 CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0014, P0015, P0024 OR P0025)
Result
HINT: If any DTCs other than P0014, P0015, P0024 or P0025 are output, troubleshoot those DTCs first.
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER (OPERATE OCV)
OK
3 CHECK WHETHER DTC OUTPUT RECURS (DTC P0014, P0015, P0024 OR P0025)
OK: No DTC output
SYSTEM IS OK
4 CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMP TEETH ON TIMING CHAIN)
OK: The matchmarks of the camshaft pulley and the camshaft bearing cap align when the notch of the crankshaft pulley is in the "0" position.
5 INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV)
Standard resistance
OK: Valve moves quickly.
6 CHECK OIL PIPE AND OIL CONTROL VALVE FILTER
OK: The filter and pipe are not clogged
7 REPLACE CAMSHAFT TIMING GEAR ASSEMBLY
8 CHECK WHETHER DTC OUTPUT RECURS
OK: No DTC output.
HINT: DTC P0014, P0015, P0024 or P0025 is output when foreign objects in engine oil are caught in some parts of the system. These codes will stay registered even if the system returns to normal after a short time. These foreign objects are then captured by the oil filter, thus eliminating the source of the problem.
SYSTEM IS OK
Check for intermittent
problems
1. CHECK FOR INTERMITTENT PROBLEMS
HINT:
For use of the intelligent tester only:
Inspect the vehicle's ECM using check mode.
Intermittent problems are easier to detect with an
intelligent tester when the ECM is in check mode. In
check mode, the ECM uses 1 trip detection logic, which
is more ...
How to proceed with
troubleshooting
HINT:
Use these procedures to troubleshoot the power door lock
control system.
The intelligent tester should be used in steps 3 and 5.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
Interview the customer to confirm the trouble
3 INSPECT COMMUNICATION FUNCTI ...
Installation
1. INSTALL OUTSIDE MOULDING
Using a heat light, heat the mounting surface of the
vehicle body between 40 to 60 C (104 to 140 F).
NOTICE:
Do not heat the body excessively.
Remove the tape from the vehicle body.
Wipe off the stains with cleaner.
Clean the outside moulding (if reusing t ...