Fuel pump control circuit check carefully troubleshooting

Fuel pump control circuit Description: When the ignition switch is turned on, the engine control module to the fuel pump relay to provide 12V supply voltage, the fuel pump to work. If the pump does not receive an ignition reference pulse from the ECM, the engine control module will shut off the power to the fuel pump relay and the fuel pump will stop working. Fuel pump control circuit check the following steps: 1, confirm the fuel pump circuit is fault â‘  ignition switch to turn off 10s. â‘¡ Ignition switch to turn on, but the engine does not run. â‘¢ listen to the action of the fuel pump. Fuel pump should be able to work 2s, if you can hear the fuel pump work 2s, said the fuel pump control circuit is normal. If you can not hear the fuel pump work, you should proceed to the next inspection. 2, check the fuel pump relay terminal 30 (harness side) to the line No. 30 circuit is faulty â‘  turn off the ignition switch. â‘¡ disassemble the fuel pump relay. â‘¢ Connect the other end of the well-grounded test lamp to the fuel pump relay terminal 30 (harness side). If the test light does not turn on, repair the circuit. If the test light turns on normally, the next step should be checked. 3, check the fuel pump relay terminal 85 and ECM terminal K54 circuit is faulty â‘  turn off the ignition switch. â‘¡ disconnect the fuel pump relay. â‘¢ Connect the other end of the test lamp with good grounding to the fuel pump relay 85 (harness side). If the test lamp does not turn on, disconnect the ECM harness and check if the circuit between the fuel pump relay terminal 85 and ECM terminal K54 is open. Circuit, should be circuit repair, if the circuit is not open, should be replaced ECM. If the test light to normal light 2, the next step should be checked. 4, check the fuel pump relay 86 and the ground circuit is faulty â‘  remove the fuel pump relay. â‘¡ Connect the other end of the test lamp that is connected to the positive terminal of the battery to the fuel pump relay terminal 86 (harness side). If the test light does not turn on, repair the circuit. If the test light turns on normally, the next step should be checked. 5, check the fuel pump relay is defective â‘  Replace the fuel pump relay. â‘¡ One end of a good test light grounded fuse Efi8. â‘¢ Connect the ECM harness. Turn the ignition switch to ON. If the test light does not light, should check the fuel pump and fuse Efi8 circuit. If necessary, carry out repairs. Fuel pump relay and fuse Efi8 between the circuit if normal, you should replace the fuel pump relay. If the test light turns on normally for 2s, the next step should be checked. 6 Check if the fuel pump is faulty â‘  Disconnect the fuel pump harness. â‘¡ Span the test lamp between fuel pumps 2 and 3 (harness side). Turn the ignition switch to ON. If the test light does not turn on, maintain the ground connection of the fuel pump or the Efi8 circuit between the fuel pump and the fuses. If the test light can be turned on normally 2s, should replace the fuel pump.

Stainless Steel Sliding Door

Characteristics and Advantages

(1) Intelligent control design: adjustable main parameter and secondary parameter automatically according to the weight of door leaves;

(2) Low noise: Special static sound track, integration of motor, worm-gear and retarder.

(3) Anti-clamping function: automatically reverse when meeting barriers;

(4) Unique electronic motor lock: the motor will lock up when the door is forced to open.(controlled by remote or switch)

(5) Tighten force: seal door when closed, power consumption approximately 10W under standby;

(6) Advanced brushless motor(36V,100W) can automatically adopt different heavy door leaves;

(7) Bi-doors inter-locking: one of the door leaves always remains closing;

(8)Safety sensor terminal: sensor stops working when door closed;

(9)Unique coating technology: never rusty;

(10)Easy and convenient to install;

(11)Working Process: when the door leaf closes to the right place, the door leaf will slightly shift to the door frame and the ground. The rubbers on the four sides of the door leaf will completely combine with door frame and ground, which ensures air tightness. When the door is open, the rubbers will separate from door frame and ground, which avoids contraction on the ground.

Technical Specification

Specification	Light Duty		Heavy Duty
Rang of the Door	Single-Leaf	Double-Leaf	Single-Leaf	Double-Leaf
Door leaf max weight	100kg	100kg x 2	200kg	200kg x 2
Mounting Method	Surface mounting or built-in mounting
Open Width	700-2000mm	650-2000mm	750-2000mm	650-2000mm
Power Supply	AC 220v ± 10%, 50-60 Hz
Opening Speed	300-500mm/s (adjustable)
Closing Speed	250-550mm/s (adjustable)
Creep speed	30-100mm/s (adjustable)
Hold-open time	0.5-20s (adjustable)
Airproof Force (Max.)	>70N
Manual Pushing Force	<100N
Electronic Lock Force	>800N
Power consumption	150W
Ambient temperature	-20+50 C

Technical Details:

(1) Rubber lining sealing technology combined with V groove on the guide rail enables the door completely sealed when the door closed;

(2)Special door body location technology. Semicircular surface beam on the ground matches with the V style groove at the bottom of door leaf, which stop the door from swing and make sure it moves stable and smooth;

(3) The door body decorated with matte stainless steel or spray surface, and on the middle and both sides with sealing stripes to ensure the hermetic effect.

(4)Feet sensor switch applied to avoid contagion;

Stainless Steel Sliding Door,Stainless Steel Bypass Sliding Door,Stainless Steel Interior Sliding Door,Stainless Steel Folding Sliding Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com