Clearing codes on 1994?
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by ckalkhof
Thanks - I would still like to what pins on the connector reset the codes.
Burning Brakes
Joined: Jun 2005
Posts: 861
Likes: 1
From: Hyde Park NY
St. Jude Donor '05
Originally Posted by FD2BLK
You can read the codes by shorting pins 4 and 12 but I am fairly positive you need a scann tool to clear the codes or disconnect t he bat. I know on both my Freescan software and TTS datmaster ther is a software selection for clear codes.
Burning Brakes
Joined: Apr 2005
Posts: 1,109
Likes: 2
Hello, 94 corvettes left bowling green in two configurations:
1. OBD I diagnostics with an OBD I connector and
2. OBD I diagnostics with OBD II connector that has 16 pins. That is how mine is set up.
Which one do you have?
I can scan my car directly and there is a procedure to even delete historical trouble codes. This comes explained in the service manual but you have to first tell me what connector you have.
1. OBD I diagnostics with an OBD I connector and
2. OBD I diagnostics with OBD II connector that has 16 pins. That is how mine is set up.
Which one do you have?
I can scan my car directly and there is a procedure to even delete historical trouble codes. This comes explained in the service manual but you have to first tell me what connector you have.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Originally Posted by Kinkajou
Hello, 94 corvettes left bowling green in two configurations:
1. OBD I diagnostics with an OBD I connector and
2. OBD I diagnostics with OBD II connector that has 16 pins. That is how mine is set up.
Which one do you have?
I can scan my car directly and there is a procedure to even delete historical trouble codes. This comes explained in the service manual but you have to first tell me what connector you have.
1. OBD I diagnostics with an OBD I connector and
2. OBD I diagnostics with OBD II connector that has 16 pins. That is how mine is set up.
Which one do you have?
I can scan my car directly and there is a procedure to even delete historical trouble codes. This comes explained in the service manual but you have to first tell me what connector you have.
I can post what OBDII codes are available when I get home if anyone is interested.
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Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
Short either pin 4 or 5 to pin 12.
Turn ignition to run (don't start the engine).
|01|02|03|04|05|06|07|08|
|09|10|11|12|13|14|15|16|
Look at the cluster LCD it will cycle thru the modules
and display any error codes for that module.
Module 1 is the CCM (Central Control Module)
Module 4 PCM/ECM (Engine Computer)
Module 9 ABS (Anti Lock Brake)
Module A DERM (Air Bag System)
After the error codes are displayed, you'll see 1.0
in the LCD which indicates the system is waiting for further instructions.
To Clear any codes for the CCM
Press the Trip/Odo until you see 1.7
Press Eng/Met button and hold until ____ appears.
To clear any codes for the other modules.
Press the Trip Reset button until the desired module is displayed.
1.0 CCM
4.0 ECM
9.0 ABS
A.0 Derm
Then Press the Trip/Odo button until you see
For CCM 1.7
For ECM 4.7
For ABS 9.7
For DERM A.7
To clear any codes for that module Press Eng/Met and hold until ____ appears.
Turn ignition off and back on and verify the error codes are cleared.
C12 is not an error code but indicates the On board diagnostics are operational.
Turn ignition to run (don't start the engine).
|01|02|03|04|05|06|07|08|
|09|10|11|12|13|14|15|16|
Look at the cluster LCD it will cycle thru the modules
and display any error codes for that module.
Module 1 is the CCM (Central Control Module)
Module 4 PCM/ECM (Engine Computer)
Module 9 ABS (Anti Lock Brake)
Module A DERM (Air Bag System)
After the error codes are displayed, you'll see 1.0
in the LCD which indicates the system is waiting for further instructions.
To Clear any codes for the CCM
Press the Trip/Odo until you see 1.7
Press Eng/Met button and hold until ____ appears.
To clear any codes for the other modules.
Press the Trip Reset button until the desired module is displayed.
1.0 CCM
4.0 ECM
9.0 ABS
A.0 Derm
Then Press the Trip/Odo button until you see
For CCM 1.7
For ECM 4.7
For ABS 9.7
For DERM A.7
To clear any codes for that module Press Eng/Met and hold until ____ appears.
Turn ignition off and back on and verify the error codes are cleared.
C12 is not an error code but indicates the On board diagnostics are operational.
