93 LT1 TCC Wiring
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93 LT1 TCC Wiring
Hey guys, I'm going over the wiring on my '88 GTA which has a '93 FBody LT1 in it.
I'm pretty confused with the TCC interface points. From what I can tell I have the following:
On the car:
C207 H (tan/blk) - as far as I can tell this goes to the ALDL pin F
C207 P (ppl) - to brake switch (is it +12v or ground)? Not sure my car has this either.
C100 E7 (ppl) - ?
On the '93 LT1 harness:
C230 H (lt blu) - Switched TCC power feed
C230 K (tan/blk) - TCC control
Where should the two wires from the LT1 C230 go?
I'm pretty confused with the TCC interface points. From what I can tell I have the following:
On the car:
C207 H (tan/blk) - as far as I can tell this goes to the ALDL pin F
C207 P (ppl) - to brake switch (is it +12v or ground)? Not sure my car has this either.
C100 E7 (ppl) - ?
On the '93 LT1 harness:
C230 H (lt blu) - Switched TCC power feed
C230 K (tan/blk) - TCC control
Where should the two wires from the LT1 C230 go?
Thread Starter
Junior Member
Joined: Mar 2012
Posts: 2
Likes: 0
Re: 93 LT1 TCC Wiring
Hey guys, I'm going over the wiring on my '88 GTA which has a '93 FBody LT1 in it.
I'm pretty confused with the TCC interface points. From what I can tell I have the following:
On the car:
C207 H (tan/blk) - as far as I can tell this goes to the ALDL pin F
C207 P (ppl) - to brake switch (is it +12v or ground)? Not sure my car has this either.
C100 E7 (ppl) - ?
On the '93 LT1 harness:
C230 H (lt blu) - Switched TCC power feed
C230 K (tan/blk) - TCC control
Where should the two wires from the LT1 C230 go?
I'm pretty confused with the TCC interface points. From what I can tell I have the following:
On the car:
C207 H (tan/blk) - as far as I can tell this goes to the ALDL pin F
C207 P (ppl) - to brake switch (is it +12v or ground)? Not sure my car has this either.
C100 E7 (ppl) - ?
On the '93 LT1 harness:
C230 H (lt blu) - Switched TCC power feed
C230 K (tan/blk) - TCC control
Where should the two wires from the LT1 C230 go?
C207P does not exist on my car. So I'm guessing I have to wire C100 E7 (ppl) to the ecm's LT1 C230 H (lt blue). From what I understand, this provides power for the tcc solenoid whenever the brake pedal is not depressed.
The remaining wire, C207 H (tan/blk) connects to LT1 C230 K (tan/blk) and tells the ecm to lockup the converter when someone grounds the correct ALDL pin.
Is this correct?
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