Why is the fuse blowing on the ASD relay?
If the fuse is blowing, it has to be because there is too much of a current draw somewhere in the circuit. The purpose of the ASD relay is to cut the power to the fuel pump if there is no Crank signal such as in the case of an accident.
How does the auto shut down relay work?
Auto Shut down relay—no start and fuse blowing. The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil(s). With certain emissions packages it also supplies 12–volts to the oxygen sensor heating elements. The Fuel Pump Relay is a separate relay controlled by the ASD relay input to the PCM.
Why is fuse # 24 on my fuel pump blowing?
Fuse #24 (20 amp) is Fuel pump relay output to fuel pump. Fuse #19 (10 amp) supplies 12 volts direct to the PCM. If the fuse is blowing, it has to be because there is too much of a current draw somewhere in the circuit. The purpose of the ASD relay is to cut the power to the fuel pump if there is no Crank signal such as in the case of an accident.
How does the ASD relay control the fuel pump?
The ASD relay supplies battery voltage (12+ volts) to the fuel injectors and ignition coil (s). With certain emissions packages it also supplies 12–volts to the oxygen sensor heating elements. The Fuel Pump Relay is a separate relay controlled by the ASD relay input to the PCM.
If the fuse is blowing, it has to be because there is too much of a current draw somewhere in the circuit. The purpose of the ASD relay is to cut the power to the fuel pump if there is no Crank signal such as in the case of an accident.
How to shut down a jeep ASD relay?
1 Lost 12 volt DC electric power. 2 Sees the spark weak or dead on the ignitor drive to Ignition coil primary pin. 3 Crank sensor bad. 4 Cam sensor bad, or misfiring, CMP. 5 ASD input read back pin fails. 6 Same ASD output read back. 7 Immobilizer active.
Why is my auto shut down relay not working?
Auto Shut down relay—no… ASD relay is chattering and the control fuse 15a mini was blowing. Replaced relay due to no start, vehicle started but acted as if cold circuit was not working. Drove for a few days like that and then the ASD control fuse (not the 30 amp) started blowing.
Why is the fuse not blowing on my relay?
Replaced relay due to no start, vehicle started but acted as if cold circuit was not working. Drove for a few days like that and then the ASD control fuse (not the 30 amp) started blowing. Im back to square one.. Now Fuse is not blowing but the new relay is now chattering. Please help.