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Pcm diode f150

# 60 in fuse box ,how to tell its good or not

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Posted on Jan 02, 2017

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SOURCE: open circuit at pcm diode

DO NOT JUMP OR ADD FUSE

the purpose of a is to change power levels like volts to amps or to ohms

Posted on Aug 23, 2011

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1 Answer

Which two ten amp fuses and diode in the under the hood fuse box are related to the air conditioning compressor clutch please


In the I/C fuse block look for the "HVAC" and the "RDO/HVAC" fuses.

In the underhood fuse block look for the "A/C CLUTCH" fuse. The diode is clearly marked with the diode symbol.

Since the a/c compressor is ultimately controlled by the HVAC module and the PCM it would be wise to use a scan tool to see if both of those modules are communicating the correct info for an A/C request.

Apr 23, 2016 | 2003 Buick Century

1 Answer

What's the diode fuse on a 1993 ford explorer


What's the diode fuse on a 1993 Ford Jason, Diode is the voltage leg that goes to the coil side of power control module power relay. The diode allows voltage to flow in only one direction, toward the pcm relay. Not allowing voltage/current spike in the opposing direction toward the pcm.
1993 Power Distribution Panel Woes Diode Ranger Forums The Ultimate Ford...
1993 ford diode fuse Google Search

Mar 23, 2016 | Ford Cars & Trucks

1 Answer

No reverse light, all fuse good. reverse Switch?


It's not that simple anymore . The transmission range sensor switch is what they have now . This range sensor informes the PCM - engine computer what gear the vehicle is in. When you put the gear selector into reverse B+ voltage from the range sensor to the PCM tells the PCM reverse has been selected , the PCM then will energize the reverse lamp relay (located in the under hood fuse/relay box) there by turning on the reverse lamps . There are two fuse's in the under hood fuse/relay box . F27 10amp. & F35 10amp.

Aug 11, 2017 | 2010 Ford Escape XLT

1 Answer

Not getting fire to the fuel pump shut-off switch.


Hi, first check fuses 28 and 34 in the box under the hood. If the fuses are good, use a 12 volt test light or voltmeter to see if there is battery voltage at fuse 34. If there is voltage at the fuse, the problem is likely the fuel pump relay in the interior fuse box, but could be the ground signal/wire from the PCM. If there is no voltage at the fuse, check the socket of the PCM power relay. Pull the relay out, connect your test light clip to chassis ground, and probe the terminals in the relay socket. There should be one hot terminal with the key off and 2 hot terminals with the key on. If not, the PCM diode may be bad. Please let me know the outcome of your tests or if you have any questions, and thanks for using FixYa.

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Jun 28, 2011 | 2004 Ford Expedition

1 Answer

2000 ford explorer, fuse box don't show me what fuses are for


There are two fuse boxes. A baqttery junction box under the hood on the drivers side and one inside on drivers side. Good luck.


Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

1 60A** I/P Fuse Panel

2 40A** Blower Motor Relay

3 50A** 4 Wheel Anti-Lock Brake System

(4WABS) Module

4 30A** Power Windows, Power Moon

Roof, Power Seat

5 50A** Ignition Switch, Starter Relay

6 20A** Transfer Case Relay

7 - Not Used

8 20A** Air Suspension

9 40A** Air Suspension

10 30A** PCM Power Relay

1 10A* A/C Relay

2 30A* Heated Seats

3 30A* Heated Backlight

4 15A* Fog Lamps and Daytime Running

Lamps

5 4 3 2 1

10 9 8 7 6

12 11 10 9

8 7 6 5

4 3 2 1

15 14 13

2 1 1

9

6

10

8

7

5

4

1

3 2

175

MEGAFUSE

Roadside emergencies

197

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

5 - Not Used

6 10A* Powertrain Control Module

7 30A* 4 Wheel Anti-Lock System

(4WABS) Module

8 15A* Rear Wiper Motor

9 20A* Fuel Pump Relay and RAP

Module

10 15A* Horn Relay

11 15A* Parklamps Relay and Mainlight

Switch

12 30A* Mainlight Switch and

Multifunction Switch

13 15A* Heated Oxygen Sensor, EGR

Vacuum Regulator, EVR Solenoid,

Camshaft Position (CMP) Sensor,

Canister Vent Solenoid

14 30A* Generator/Voltage Regulator

15 - Not Used

1 - Wiper Park Relay

2 - A/C Relay

3 - Wiper High/Low Relay

4 - PCM Power Relay

5 - Fuel Pump Relay

6 - Starter Relay

7 - Horn Relay

8 - Rear Wipe Down Relay

9 - Blower Motor Relay

10 - Rear Wipe Up Relay

1 - Not Used

1 - DRL Diode
2 - Electronic Engine Controls Diode

Apr 06, 2011 | 2000 Ford Explorer

1 Answer

PCM protection diode and PCM relay I have a diesel 1999 f 250, is this under the hood in with the other fuses. or by its self. I have a p0603 Inernal crtl mod cam error, and some one said to look at the...


Fuse #2 in the fuse box behind the driver's knee panel is the 5amp "KAM" fuse. The others,in under the hood fuse box would not be a concern as without them being good the engine will not start and no code read would be possible.

Oct 25, 2009 | 1999 Ford F250 Regular Cab

1 Answer

Pcm or computer fuse location, where is this fuse so I can check to see if blown?


It should be in the under hood fuse box with a PCM protection diode and PCM relay. Is your truck light duty, super duty, gas or diesel?

Oct 25, 2009 | 1999 Ford F250 Regular Cab

2 Answers

Tail light are not working


fuses under hood
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POWER DISTRIBUTION BOX Location Name Amp Circuits Protected A Trailer Tow 50 Fuse 32/Fuse 26/Electric Brake B Fan (Hi) 60 Cooling Fan (CCRM) C Start 60 Starter Solenoid/Fuse 30/Fuse 36/Fuse 2 D Ignition 60 Fuse 6/Fuse 12/
Fuse 8/Fuse 18/Fuse 14/
Fuse 24/Fuse 20/Fuse 21/Fuse 27/Fuse 33 E Rear
Blower/
RAS 60 Rear Heater Blower Motor
Rear Air Suspension F Seat 60 Power Seats G — — Not Used H Fan-Lo 40 Engine Cooling Fans J Power Accessory 60 Fuse 13/Fuse 25/
Fuse 1/Fuse 31/Fuse 37/
Fuse 40/Fuse 7/Fuse 19 K Light 60 Headlamps/Fuse 10/
Fuse 11/Fuse 3/Fuse 9/
Fuse 23/Fuse 29/Fuse 35/Fuse 41/Fuse 17 L ABS 60 ABS Control/Pump Motor Module M Heated
Backlight 60 Heated Backlite/Fuse 16/Fuse 28/Fuse 22 N Fuel 20 PCM/Fuel Pump/CCRM P — — Not Used R PCM 15 PCM Memory S PCM 30 AX4S/Cylinder Identification Sensor/EDIS Module/PCM Power/EGR Control/HEGO's/IAC/
Injectors/MAFS/VMV T Alt./Reg. 15 Generator U Air Bag 10 Air Bag (Dedicated) V Trans. Light 10 Transmission Indicator Light W Fan 10 PCM Fan Monitor X Diode — Hood Lamp Diode Y Relay — RH Trailer Turn/Stop/Hazard Lamps Z Relay — Powertrain Control Module AA Relay — Windshield Wiper Speed BB Relay — LH Trailer Turn/Stop/Hazard Lamps CC Relay — Windshield Washer Pump Motor DD Relay — Windshield Wiper Dynamic Brake/Run
The fuses are color-coded by amp rating.

Fuse Value Amps Color Code 4 Pink 5 Tan 7.5 Brown 10 Red 15 Light Blue 20 Yellow 25 Natural 30 Light Green 40 Orange 50 Red 60 Blue

Mar 14, 2009 | 1997 Ford Windstar

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