Mazda 6 2002 Workshop Manual page 264

STEP
3 CLASSIFY INTERMITTENT CONCERN OR
CONTINUOUS CONCERN
• Clear DTC from PCM memory using WDS or
equipment.
• Drive vehicle under following conditions:
— Engine coolant temperature is above 63 ° ° ° ° C
{145 ° ° ° ° F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is below as
followings
• Engine speed below 1,500 rpm: above
35 %
• Engine speed between 1,500–2,500
rpm: between 25–35%
• Engine speed above 2,500: below 25 %
• Is pending code the same as DTC present?
4 VERIFY STORED OTHER DTCS
• Verify stored DTCs using WDS or equipment.
• Is other DTC present ecept P0117, P0118,
P0121, P0122, P0123 and/or P0335?
5 INSPECT VTCS SHUTTER VALVE ACTUATOR
• Carry out “VTCS operation inspection”.
(See F–231 Variable Tumble Control System
(VTCS) Operation
• Is VTCS shutter valve actuator okay?
6 INSPECT VARIABLE TUMBLE CONTROL
SOLENOID VALVE
• Carry out “Variable tumble control solenoid
valve airflow inspection”.
(See F–15 VARIABLE TUMBLE CONTROL
SOLENOID VALVE
• Is variable tumble control solenoid valve okay?
7 INSPECT PCM FOR POOR CONNECTION
• Inspect for poor connection at PCM terminal 4T
(damaged/pulled-out terminals, corrosion,
etc.).
• Is there malfunction?
8 VERIFY TROUBLESHOOTING OF DTC P2006
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Start engine.
• Clear DTC from PCM memory using WDS or
equipment.
• Start engine.
• Drive vehicle under following conditions:
— Engine coolant temperature is above 63 ° ° ° ° C
{145 ° ° ° ° F}.
— Engine speed: below 3,750 rpm
— Throttle opening angle is below as
followings
• Engine speed below 1,500 rpm: above
35 %
• Engine speed between 1,500–2,500
rpm: between 25–35%
• Engine speed above 2,500: below 25 %
• Is pending code the same as DTC present?
9 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR
• Is there any DTC present?
End Of Sie
ON-BOARD DIAGNOSTIC
INSPECTION
Inspection.)
INSPECTION.)
PROCEDURE.)
Yes Go to net step.
No Intermittent concern eists. Go to INTERMITTENT
CONCERN TROUBLESHOOTING procedure.
(See F–227 INTERMITTENT CONCERN
TROUBLESHOOTING.)
Yes Go to appropriate DTC troubleshooting procedures.
No Go to net step.
Yes Go to net step.
No Replace VTCS shutter valve actuator, then go to Step 8.
Yes Go to net step.
No Replace variable tumble control solenoid valve, then go to
Step 8.
Yes Repair terminal, then go to net step.
No Go to net step.
Yes Replace PCM, then go to net step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to net step.
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.
ACTION
F–167
F