Wiring diagram

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Jan 18, 2009 | 10:01 AM

jwdenney2

Thread Starter

Mountain Pass

Joined: Mar 2002

Posts: 190

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Wiring diagram

I am trying to find what color/pattern wires lead to each of the four O2 sensors from the PCM. Are there wiring diagrams available (for free) online?

2005 F150 Supercab, 4.6L, E4OD

Thanks in advance for your help!

Jan 18, 2009 | 08:58 PM

deisele75

Elder User

Joined: Dec 2004

Posts: 892

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From: Las Vegas

Be right back.

Jan 18, 2009 | 09:19 PM

deisele75

Elder User

Joined: Dec 2004

Posts: 892

Likes: 1

From: Las Vegas

HO2S #11

Pin 1 (RD-WH)
Pin 2 (RD-YE)
Pin 3 (GY-LB)
pin 4 (GY-RD)

HO2S #12

Pin 1 (VT-WH)
Pin 2 (WH-BK)
Pin 3 (GY-RD)
Pin 4 (RD-LG)

HO2S #21

Pin 1 (YE-LB)
Pin 2 (RD-YE)
Pin 3 (RD-BK)
Pin 4 (GY-RD)

HO2S #22

Pin 1 (VT-WH)
Pin 2 (TN-YE)
Pin 3 (GY-RD)
Pin 4 (VT-LG)

Jan 19, 2009 | 03:43 PM

jwdenney2

Thread Starter

Mountain Pass

Joined: Mar 2002

Posts: 190

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Which one is the signal wire (to the PCM) for each sensor?

Thanks,
JD

Jan 19, 2009 | 07:36 PM

ohboy44

Senior User

Joined: Sep 2006

Posts: 392

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HO2S #11

Pin 1 (RD-WH) -Heater control
Pin 2 (RD-YE) -12 volts
Pin 3 (GY-LB) -Signal to PCM
pin 4 (GY-RD) -Signal return

HO2S #12

Pin 1 (VT-WH) -12 volts
Pin 2 (WH-BK) -Heater control
Pin 3 (GY-RD) -Signal return
Pin 4 (RD-LG) -Signal to PCM

HO2S #21

Pin 1 (YE-LB) -Heater control
Pin 2 (RD-YE) -12 volts
Pin 3 (RD-BK) -Signal to PCM
Pin 4 (GY-RD) -Signal return

HO2S #22

Pin 1 (VT-WH) -12 volts
Pin 2 (TN-YE) -Heater control
Pin 3 (GY-RD) -Signal return
Pin 4 (VT-LG) -Signal to PCM