Dtc P2401[L3 With Tc] - Mazda CX-7 2007 Workshop Manual

DTC P2401[L3 WITH TC]

DTC P2401 EVAP system leak detection pump motor circuit low
• The PCM monitors the pump load current (EVAP line pressure), while the EVAP leak monitor is operating.
If the pump load current is lower than specified, the PCM determines that the EVAP system leak detection
pump motor circuit 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 malfunction
• Open circuit between main relay and EVAP system leak detection pump terminal A
• Open circuit between EVAP system leak detection pump terminal D and PCM terminal 1AS
POSSIBLE
• Short to ground circuit between EVAP system leak detection pump terminal D and PCM terminal 1AS
CAUSE
• Poor connection at the EVAP system leak detection pump or the PCM connector
• PCM malfunction
EVAP SYSTEM LEAK
DETECTION PUMP
9
EVAP SYSTEM DETECTION PUMP
WIRING HARNESS SIDE CONNECTOR
C
ON-BOARD DIAGNOSTIC [L3 WITH TC]
MAIN RELAY
5
4
A
4
C
4
M
D
8
4
B
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M
A
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z 1V 1R 1N
B
D
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X
PCM
6
1V
6
1AS
PCM
WIRING HARNESS SIDE CONNECTOR
id010239813500
1I 1E 1A
1J 1F 1B
1K 1G 1C
1T 1P 1L 1H 1D
01-02–243
01-02