Electrical ignition, not starting?

Hi,

I looked at the wiring schematic and I suspect it is one of three issues. The easiest thing to try is replacing the starter relay. It is located in the vehicle behind the left kick panel. With it with a different relay having the same part number. Next would be the neutral safety switch, but I don't think that is the case. It allows power to pass through the switch to the starter motor when it is in the correct position. It shouldn't cause what you are describing.

Now if you look at the wiring schematic below, the only time the relay should actuate to crank the engine is when the key is in the start position. At that point, you send power (from the switch) to the relay primary. In this case, I suspect something is shorting in the switch allowing power to feed in the run and start positions. We can check that by watching for power at the relay when the key is turned to the run position. However, try the relay first.

I attached the wiring schematic below so that you would have a reference. Let me know if it helps or if you have questions,

Take care,

Joe

See pics below. Note: The schematic was only one page. I cut it in half to make it readable. I did overlap the two so you can follow from one to the next.

Hi,

Danny, I need you to remove the relay. One of the connector pins will have battery voltage at all times (white wire in pic below). The black wire should get power with the key in the start position. Check it that is the case. Also, see if the power to the black shuts off when the key is released.

Let me know.

Joe

See pic below.

Hi,

Pin 1 shouldn't have power in the ACC or on position. If you have power at pin 1 with the key in ACC or run, that is going to actuate the secondary side of the relay and engage the starter.

To me, that indicates a short in the ignition switch itself. Pin 1 shouldn't have power until the switch is in the start position. It also explains the starter engaging when you turn the key to the first position. Has the starter ever engaged if the key is in the ACC position?

Let me know your thoughts.

Joe

Hi,

I suspect that is what will be needed. However, I attached the diagnostics for testing the switch itself. Note that pin 6 should only have continuity when the key is in the start position. If it has power in any of the other positions, replace the switch. If you find any variations to the pin connectors in pic 3, replace it.

Let me know what you find.

Joe

See pics below.

Hi Danny,

Thanks, for the update. Take your time. I'll be here. LOL

I look forward to hearing from you. If you run into any trouble, let me know.

Take care,

Joe

Hi,

Do me a favor. At the neutral safety switch on the transmission, there will be two wires. One is black. The other wire will either be black with an orange tracer or black with a yellow tracer. Determine which you have and then check that wire for power when the key is in the start position.

If there is power, with the vehicle in park, check the black wire out for power with the key in the start position.

Let me know what you find. We are going to walk through this one section at a time. LOL

Take care,

joe