Can't Understand the Code

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Mar 24, 2008 | 06:37 PM

Counted Out

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Joined: Jan 2006

Posts: 1,025

From: Tucson, AZ

Can't Understand the Code

So I was running the codes on my car for the first time, and after the DTC 12, the SES light did the following sequence:

Flash, Flash, Pause, Flash, Flash, Flash, Flash, Flash, Flash, Flash, Flash

It repeated this code 3 times, like it is supposed to. What code is that?

Mar 24, 2008 | 07:44 PM

shoebox

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Joined: Dec 1969

Posts: 27,727

From: Little Rock, AR

Well, if 12 is flash, pause flash flash then your long sequence is code 28.

1993 only--
Quad-Driver Module (QDM) #3 circuit
applies to:
- fan control relays
- a/c relay

Mar 24, 2008 | 07:55 PM

Counted Out

Thread Starter

Registered User

Joined: Jan 2006

Posts: 1,025

From: Tucson, AZ

Quote:

Originally Posted by shoebox

Well, if 12 is flash, pause flash flash then your long sequence is code 28.

1993 only--
Quad-Driver Module (QDM) #3 circuit
applies to:
- fan control relays
- a/c relay

Could that be showing up because I have a Fan Control Switch?

Last edited by Counted Out; Mar 24, 2008 at 07:58 PM.

Mar 24, 2008 | 08:09 PM

shoebox

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Joined: Dec 1969

Posts: 27,727

From: Little Rock, AR

Quote:

Originally Posted by Counted Out

Could that be showing up because I have a Fan Control Switch?

It depends on what it is and how it is wired.

Mar 31, 2008 | 05:45 PM

Counted Out

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Joined: Jan 2006

Posts: 1,025

From: Tucson, AZ

Quote:

Originally Posted by shoebox

It depends on what it is and how it is wired.

How can I clear the code?

Mar 31, 2008 | 09:46 PM

Injuneer

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Joined: Nov 1998

Posts: 71,099

From: Hell was full so they sent me to NJ

You clear the code by fixing the problem. If you don't wire the fan switch correctly, you can get a code.

Apr 2, 2008 | 04:32 PM

Counted Out

Thread Starter

Registered User

Joined: Jan 2006

Posts: 1,025

From: Tucson, AZ

Quote:

Originally Posted by Injuneer

You clear the code by fixing the problem. If you don't wire the fan switch correctly, you can get a code.

I think after that you have to disconnect the computer from the battery for so long though. I could be wrong.

Apr 2, 2008 | 05:53 PM

Injuneer

Administrator

Joined: Nov 1998

Posts: 71,099

From: Hell was full so they sent me to NJ

Removing power from the PCM for 30-seconds will clear the code. However, if the problem is still there, the code and the SES light will come right back the first time the PCM runs the diagnostic.