c68 diagnostic
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Joined: Aug 2001
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c68 diagnostic
When I start my car up (88 coupe), the Ext Temp light flashes for about a mintue, which means that a sensor is bad according to the service manual.
The manual says there is a diagnostic mode in the C68 which helps identify the bad sensor. I'm supposed to press and hold the Rear Defog button, then press and release the Fan Manual Up button.
The temperature display is then supposed to show a number between 1 and 9. However, all I get is '00'.
Am I doing something wrong here?
Thanks.
Al.
The manual says there is a diagnostic mode in the C68 which helps identify the bad sensor. I'm supposed to press and hold the Rear Defog button, then press and release the Fan Manual Up button.
The temperature display is then supposed to show a number between 1 and 9. However, all I get is '00'.
Am I doing something wrong here?
Thanks.
Al.
Burning Brakes
Joined: Sep 1999
Posts: 786
Likes: 31
Cruise-In II Veteran
Re: c68 diagnostic (Aman)
Try the following links (don't know if they are applicable to a 1988 though):
http://vettenet.org/ac_codes.html
and/or
http://www.idavette.net/tech/c4diag.htm
http://vettenet.org/ac_codes.html
and/or
http://www.idavette.net/tech/c4diag.htm
