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	 2011 Toyota Corolla S 1.8L MIL Lamp on 
		
		Hi, I'm in the process of diagnosing this evap problem. Can anyone describe the power supply circuit to the leak detection pump? I have constant B+ at terminal 1 at the LDP. It never changes, even with scanner actuation. The ground at terminal 6 is ok. I c... 
                        
                            Summary posted 3/14/2022
                             
                 
                            
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         Message Closed w/Summary 
	   
	   
	   
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| VIN | 2T1BU4EE0B | 
| Engine | 1.8 L / 4 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P043E | EVAP System Reference Orifice Flow Insufficient | 
| P043F | EVAP System Reference Orifice Flow Excessive | 
| P2401 | EVAP System Leak Detection Pump Control Circuit Low Voltage | 
| P2402 | EVAP System Leak Detection Pump Control Circuit Low Voltage | 
Message Closed w/Summary
            
            
 Vehicle Data
                2011 Toyota Corolla S
| VIN | 2T1BU4EE0B | 
| Engine | 1.8 L / 4 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P043E | EVAP System Reference Orifice Flow Insufficient | 
| P043F | EVAP System Reference Orifice Flow Excessive | 
| P2401 | EVAP System Leak Detection Pump Control Circuit Low Voltage | 
| P2402 | EVAP System Leak Detection Pump Control Circuit Low Voltage | 
                            
7 Replies Received
          7 Replies Received
          
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