Mazda 6 2002, Workshop Manual

Page: 298 / 1248

F–168
ON-BOARD DIAGNOSTIC
DTC P2009
A6E397001083W04
Diagnostic procedure
DTC P2009 Variable tumble control solenoid valve circuit low input
DETECTION
CONDITION
•
PCM monitors variable tumble control solenoid valve control signal at PCM terminal 4T. If PCM turns
variable tumble control solenoid valve off but voltage at PCM terminal 4T still remains low, PCM
determines that VTCS solenoid valve circuit has malfunction.
Diagnostic support note
•
This is a continuous monitor (CCM).
•
MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one
drive cycle while the DTC for the same malfunction has been stored in the PCM.
•
PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
•
FREEZE FRAME DATA is available.
•
DTC is stored in PCM memory.
POSSIBLE
CAUSE
•
Poor connection of connectors at PCM and/or variable tumble control solenoid valve
•
Short to ground in wiring between variable tumble control solenoid valve terminal B and PCM terminal 4T
•
Open circuit in wiring between main relay and variable tumble control solenoid valve terminal A
•
Open circuit in wiring between variable tumble control solenoid valve terminal B and PCM terminal 4T
•
Variable tumble control solenoid valve malfunction
•
PCM malfunction
STEP INSPECTION ACTION
1 PERFORM DTC CONFIRMATION PROCEDURE
•
Perform DTC CONFIRMATION PROCEDURE.
(See
F–66 DTC CONFIRMATION
PROCEDURE .)
•
Is same DTC present?
Yes Go to next step.
No Intermittent concern exists. Go to INTERMITTENT
CONCERN TROUBLESHOOTING procedure.
(See
F–227 INTERMITTENT CONCERN
TROUBLESHOOTING .)
2 INSPECT VTCS SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
•
Turn ignition key to OFF.
•
Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
•
Is there malfunction?
Yes Repair or replace terminal, then go to Step 8.
No Go to next step.
3 INSPECT VARIABLE TUMBLE CONTROL
SOLENOID VALVE
•
Perform variable tumble control solenoid valve
inspection.
(See
F–15 VARIABLE TUMBLE CONTROL
SOLENOID VALVE INSPECTION .)
•
Is variable tumble control solenoid valve okay?
Yes Go to next step.
No Replace variable tumble control solenoid valve, then go to
Step 8.