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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

help w/code after tune

  • Thread starter Thread starter bgrd351
  • Start date Start date Jun 25, 2006

bgrd351

Member
Jun 10, 2005
109
0
17
Jacksonville, Fl
Jun 25, 2006
#1
  • Jun 25, 2006
  • #1
I just got my car tuned on a dyno yesterday and went out to see if any codes had appeared and found this:

P1474 Low Fan Control Primary circuit

does anyone know what this means and what is causing it?
 

Mike97gt

it doe snot
Founding Member
Jan 26, 1999
10,633
7
89
the people's republic of massachusetts
Jun 25, 2006
#2
  • Jun 25, 2006
  • #2
that code might have happend durring programing. I woukld clear this code and see if it comes back in a few days.
P1474 - Low Fan Control (LFC) Primary Circuit Failure Monitors the low fan control (LFC) (fan control [FC] for one speed fan application) primary circuit output from the PCM. The test fails if: When the PCM grounds the LFC/FC circuit, excessive current draw is detected on the LFC/FC circuit; or with the LFC/FC circuit not grounded by the PCM, voltage is not detected on the LFC/FC circuit (the PCM expects to detect VPWR voltage coming through the low speed FC relay [or CCRM] coil to the LFC/FC circuit). Open or shorted LFC/FC circuit
Open VPWR circuit to low speed FC relay
Damaged low speed FC relay (or CCRM)
Damaged PCM
When the LFCF PID reads YES, a fault is currently present
An open circuit or short to ground can only be detected when the PCM is not grounding the LFC/FC circuit
A short to power can only be detected when the PCM is grounding the LFC/FC circuit.
During KOEO and KOER Self-Test, the LFC/FC circuit will be cycled on and off
Click to expand...
the most common causes of this code is a bad CCRM or short to power.
 

bgrd351

Member
Jun 10, 2005
109
0
17
Jacksonville, Fl
Jun 29, 2006
#3
  • Jun 29, 2006
  • #3
sorry for the slow reply to you but I got slammed at work the last few days but here is the update: I can clear it and it comes right back after a few minutes of driving. I called the tuner and he says he needs to adjust a switch in the tune.
 
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