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DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-439 C D E F G H I J K L M A EC Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- Diagnostic Procedure NBS001XM 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten three ground screws on the body. OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. TER- MINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 32 G EVAP control system pres- [Ignition switch: ON] Approximately 1.8 - 4.8V 48 R Sensor power supply [Ignition switch: ON] Approximately 5V 67 B Sensor ground [Engine is running] ● Warm-up condition ● Idle speed Approximately 0V PBIB2417E |