Should I be able to flash SES codes with 94/95 harness and ECM?
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From: Chatsworth, Ga
Car: 1965 Chevelle SS
Engine: 355
Transmission: TH350
Should I be able to flash SES codes with 94/95 harness and ECM?
I have what I think is a 95 ECM and harness, but I am not 100% sure - the person I bought it from said it was a 95.
I think I have the ALDL wired correctly:
The SES light is on when the car is on. I tried grounding the wire that goes to aldl pin b and then turning the key to the on position. The ses light does not come on(actually it flashes on very briefly) and the fans come on. I have read some info (shbox.com) that says I cannot flash codes for 94 - up ecms. Is that what the problem is?
Will a scanner be the only way to pull codes?
I think I have the ALDL wired correctly:
- ALDL pin M goes to the tan wire on pin 30 on the blue ecm connector
- ALDL pin B goes to the white w/ black wire on pin 20 of the blue ecm connector
The SES light is on when the car is on. I tried grounding the wire that goes to aldl pin b and then turning the key to the on position. The ses light does not come on(actually it flashes on very briefly) and the fans come on. I have read some info (shbox.com) that says I cannot flash codes for 94 - up ecms. Is that what the problem is?
Will a scanner be the only way to pull codes?
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Re: Should I be able to flash SES codes with 94/95 harness and ECM?
Yep scan tool only, and only certain ones will actually do it.
Thread Starter
Member
iTrader: (1)
Joined: Sep 2003
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From: Chatsworth, Ga
Car: 1965 Chevelle SS
Engine: 355
Transmission: TH350
Re: Should I be able to flash SES codes with 94/95 harness and ECM?
what year of car would be the year to use for the scan? A 93 or 94? My car is a 92 with the 12 pin aldl
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iTrader: (2)
Joined: Jan 2001
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Re: Should I be able to flash SES codes with 94/95 harness and ECM?
94 or 95, it doesnt matter too much for the scan
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From: new phila, oh
Car: 1990 RS
Engine: LS1
Transmission: T56
Axle/Gears: 3.73 9 bolt
Re: Should I be able to flash SES codes with 94/95 harness and ECM?
Yes, but for 95 they switched to a 16 pin ALDL connector so they could use the newer scanner (OBD2), but it was still OBD1. You may need to switch to a 16 pin ALDL to use a handheld scanner since you think the computer is a 95. If it is a 94 you should be able to get away using the stock 12 pin ALDL.
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iTrader: (2)
Joined: Jan 2001
Posts: 4,149
Likes: 3
From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Re: Should I be able to flash SES codes with 94/95 harness and ECM?
Yes, but for 95 they switched to a 16 pin ALDL connector so they could use the newer scanner (OBD2), but it was still OBD1. You may need to switch to a 16 pin ALDL to use a handheld scanner since you think the computer is a 95. If it is a 94 you should be able to get away using the stock 12 pin ALDL.
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