Dtc P2405[L3 With Tc] - Mazda CX-7 2007 Workshop Manual

DTC P2405[L3 WITH TC]

DTC P2405 EVAP system leak detection pump sensor circuit low input
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
If the current is lower than the specification while the PCM obtains the reference current value, the PCM
determines that the EVAP system leak detection pump orifice has a malfunction.
Diagnostic support note
• This is a intermittent monitor (CCM).
DETECTION
• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in
CONDITION
one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive
cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
• EVAP system leak detection pump orifice has fallen off
POSSIBLE
• EVAP system leak detection pump motor malfunction
CAUSE
• PCM malfunction
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
3 VERIFY TROUBLESHOOTING OF DTC P2405
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Perform the EVAP system test using the M-
MDS.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Is the same DTC present?
Note
• If EVAP system test function is not
available, take following procedure.
— Start the engine and perform the
"EVAP System Repair Verification
Drive Mode".
(See01-02-10 OBD-II DRIVE
MODE[L3 WITH TC].)
— Is the PENDING CODE for this DTC
present?
4 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See01-14-4 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Go to the next step.
No Record FREEZE FRAME DATA on the repair order, then go
to the next step.
Yes Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Replace the EVAP system leak detection pump, then go to
the next step.
Yes Replace the PCM, then go to the next step.
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Troubleshooting completed.
id010239813800
ACTION
01-02–249
01-02