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Discussion Starter · #1 ·
I have two light gauge wires from ECM for backup lights and don't know how they should be wired. Do they require a relay?
Thanks,
Jim
 

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If the wires go through the ECM, I'd put them on a relay.

The T56 has a reverse switch on it, you don't need to go through the ECM. And maybe yours is that way, but just bundled into the harness.
 

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If the wires go through the ECM, I'd put them on a relay.

The T56 has a reverse switch on it, you don't need to go through the ECM. And maybe yours is that way, but just bundled into the harness.
I agree....I'm using the T56 switch. You don't need a relay for it. I don't understand why you'd need to go through the ECM either. Why would the engine need to know when you're in reverse?
 

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Discussion Starter · #5 ·
Thanks for the responses and I'll take the harness apart to see if they are just bundled with the wires from the ECM and really originate at the trans.
Jim
 
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