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Diagnostic Procedure
NFEC0786
1 RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
SEC047D
© GO TO 2.
2 CHECK CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.
Water should not exist.
OK or NG
OK © GO TO 3.
NG © Repair or replace harness connector.
3 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “ON”.
2. Check voltage between EVAP control system pressure sensor terminal 1 and ground with CONSULT-II or tester.
SEC063D
Voltage: Approximately 5V
OK or NG
OK © GO TO 5.
NG © GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors B2, M2
I Harness connectors M81, F49
I Harness for open or short between EVAP control system pressure sensor and ECM
© Repair harness or connectors.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0452 EVAP SYSTEM PRESSURE SENSOR
Diagnostic Procedure
EC-393
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