Pcm power relay - The automobile fault code P068A indicates a problem with the Engine Control Module (ECM) relay or the ECM itself. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause of this fault code can be a faulty ECM relay, a faulty ECM, an open or shorted ECM harness, or a poor electrical connection in ...

 
1999 to 2016 Super Duty - PCM Relay fuse keeps blowing - Does anyone know what causes the PCM relay fuse to keep blowing out. All seems normal on this 00 F650 except that it keeps blowing. ... 1994.5 - 1997 7.3L Power Stroke Diesel. 4. 11-11-2011 09:10 PM. Question on fuse relays. bdub2. 1999 - 2003 7.3L Power Stroke Diesel. 2. 02 …. Colorado turnpike

Diagnostic trouble code(DTC) P0689 stands for “ECM/PCM Power Relay Sensor Circuit Low.”. The code is set once your vehicle’s computer detects a possible problem with the relay that supplies it with voltage. The PCM is in charge of controlling the powertrain, which includes the engine and transmission. It keeps track of parameters like ...Power Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS) 9--10: 10: Rear Window Defrost: 11--12--13: 5: Radio: 14: 10: Traction Control Switch, Anti-lock Brakes (ABS), Instrument Cluster: 15: 15:Ford Focus (2012-2014) fuses and relays. In this article, we consider the third-generation Ford Focus before facelift, produced from 2012 to 2014. Here you will find fuse box diagrams of Ford Focus 2012, 2013 and 2014, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout ...14152 posts · Joined 2008. #2 · Jun 1, 2018. Oh, that's not a good code to have. The service manual does say to check for loose terminals at the "IGP line connectors" so it means checking the IGP (Power Source) for the PCM which is Connector B, terminal number B3, a yellow/black wire at the PCM. Unfortunately, if the power feed to the PCM is ...A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control ...PCM – keep alive power, PCM relay coil, canister vent solenoid [3.7L, 5.0L and 6.2L engines] Fuse MINI . 20A: 27: Fuel pump relay power. Fuse MINI . 10A: 28: Upfitter 4 [SVT Raptor] Fuse MINI . 10A: 29: ... PCM – Voltage power 2 (General powertrain components, Mass air flow/Intake air temp sensor) [3.7L, 5.0L, 6.2L engines]On the 03, the COPS do not get their power through the PCM relay. When energized, the PCM relay powers three sub-circuits, each protected by its own fuse. Fuse F32 (15A) supplies engine (downstream O2 sensor heaters) and the transmission controls. Fuse F33 (20A) supplies remaining engine controls. Fuse F34 (20A) supplies the fuel …Crownvic.net! Make payments with PayPal - it's fast, free and secure! registry | CVN ...Fuse Layout Ford Taurus 2000-2007. Cigar lighter (power outlet) fuse in the Ford Taurus is the fuse #13 in the Instrument panel fuse box (2000). 2001-2003 – fuse #13 in the Instrument panel fuse box and fuse #18 in the Engine compartment fuse box. Since 2004 – fuses #25 and #29 in the Instrument panel fuse box. Table of Contents.Jun 11, 2008 ... I did find something about the PCM relay. If it were bad, it'd trip the PCM power fuse? If this is the case, I'll replace the relay, replace ...So, for clarification with diagram in view Pin 18 to Pin 52 = Wake Up signal from BCM Primary (Lazy Circuit) that is killing all power to Lights etc. Run Start Relay - Secondary Power, From Key Cycle - Powers the PCM (ISP-R) Pin 64 Pin 64 - Allows / Triggers the Ground to the PCM Power Relay (PCM - Pin 25) Normal Operation = Wake …Chevrolet’s 4.3-liter Vortec V-6 engines incorporated one or two knock sensors. These sensors detected incorrect fuel-air mixture combustion in the cylinder. The knock sensor relay...Save on Powertrain Control Module Relay at Advance Auto Parts. Buy online, pick up in-store in 30 minutes.Sep 25, 2020 ... Did any fuses blow and which ones? There's an inertia switch behind the passenger side kick panel which kills power to the fuel pump if tripped.When it comes to heating systems, maximizing comfort and savings is a top priority for homeowners. One effective way to achieve this is by using Erie Boiler Zone Relay controls. Be...P0687 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Control Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 .Circuit 361 for PCM Power at pin71. Circuit 361 to Connector 138 (C138, 42-pin connector near the UH fusebox), then changes to circuit 552 for IPR power. Location for S157 states it is in the Engine control sensor harness, near T/O (take out) to PCM. I would see if there is power to the other items as well. If there is, the open is somewhere ...PCM Power Relay. Relay . 31: Blower Motor Relay. Relay . 32: Two Speed Fuel Pump Relay [Gasoline only], Injector Driver Module Power Relay [Diesel only] Relay . 33: Washer Pump Relay. Relay . 34: Windshield Wiper Park/Run Relay. Relay . 35: Windshield Wiper HI/LO Relay. Diode ATO . 37: PCM Relay Diode. Relay . 38: Trailer Tow Backup Lamp …When you have P0688, it has detected an open circuit. An open circuit is a circuit that has not been completed. It means that no power is flowing through the PCM power relay control circuit to your car or truck’s PCM. When this happens, P0688 will be stored in the PCM’s memory, and the check engine light will come on.Conclusion. P0685 is usually caused by a bad relay or the circuits running to the relay. Good luck fixing your Ford F350. P0685 is a somewhat rare OBDII trouble code. It's a general code, so it has the same meaning for the Ford F350 as any other vehicle. It indicates that the circuit that provides power to the PCM is not functioning properly.A P068A should be categorized as severe and addressed accordingly. It may result in a no start condition and/or a variety of drivability issues. How to easily diagnose, repair, and info on causes of a P068A trouble code that indicates a detected performance problem in the ECM/PCM power relay which is de-Energizing too early.Below are some reasons to set fault code P068A: – ECM/PCM power relay defect. – Incorrect use of relay. – Damaged wires and loose or rusty connectors. Open or short circuit issues. – A defective ignition switch. – A blown fuse. A bad charging system or battery can lead to abnormally high system voltages or very low system voltages.Jun 11, 2008 ... I did find something about the PCM relay. If it were bad, it'd trip the PCM power fuse? If this is the case, I'll replace the relay, replace ...3. Test the PCM Power Relay. If your Accord won’t start and the relay is getting both power from the battery line and the keyed power (with a solid ground), it’s time to suspect the PCM power relay itself. Here’s a good video on how to test a relay. It’ll also give you a basic understanding of how they work if you’re having trouble ...This is a 2.0 Ford titanium flex fuel All power and grounds were checked that let us to believe that there was an internal failure in the PCM put another PCM in it it is still not sending a ground to activate the relay . Dtc in the BCM are u0100 and u0131 and b10e5 . Ford Mechanic: Chris (aka- Moose)The OBD-II fault code P068A means that the PCM Power Relay is de-energized too early, causing a variance in voltage and resulting in a hard or no start in co...Circuit 361 for PCM Power at pin71. Circuit 361 to Connector 138 (C138, 42-pin connector near the UH fusebox), then changes to circuit 552 for IPR power. Location for S157 states it is in the Engine control sensor harness, near T/O (take out) to PCM. I would see if there is power to the other items as well. If there is, the open is somewhere ...P068A ECM/PCM Power Relay de-energized to early. Jump to Latest Follow. 81K views 14 replies 11 participants last post by sick350 Feb 25, 2017. Flyin' Hawaiian Discussion starter. 644 posts · Joined 2008. #1 · Mar 17, 2011. Have a 6.7 that has this code, H&S Tuned, went to start truck just clicked....thought the batteries were toast charged ...Diagnostic trouble code(DTC) P0689 stands for “ECM/PCM Power Relay Sensor Circuit Low.”. The code is set once your vehicle’s computer detects a possible problem with the relay that supplies it with voltage. The PCM is in charge of controlling the powertrain, which includes the engine and transmission. It keeps track of parameters like ...Some of the symptoms of a bad powertrain control module are. 1) Illuminated check engine light. The check engine light only turns on if the ECM ( Engine control module ) is analyzing the data it receives not up to standards. 2) Intermittent cylinder misfires. The crankshaft position sensor, for example, relies on the condition of the ECU so ...There is no keep alive power PCM relay. This is simply a alwasy hot ciruit that keeps the power to the PCMs mempry banks. The PCM relay is switched on every time when the ignition is turned on. This in turn powers the PCM processor and an internal 5V power supply that then powers the two wire 5V sensors. Paul Nimz.Sep 7, 2023 · In the 1999 Ford F-150, the PCM fuse and relay are located in two separate fuse boxes. In the under-dash fuse box, you’ll find fuse number 2, 20 and 30, which is assigned for the PCM power fuse. In the under-hood fuse box, there is a specific fuse labeled as fuse number 18, 23 and 24, designated for the PCM. Additionally, Relay 304 is ... “Half of what we will teach you in medical school is right, and half of it is wrong – the problem is we don’t know which is which.” This quote, or some variation of it, is relayed ...Fault code P068A – ECM/PCM power relay de-energized performance – too early. Author AutoNevod Reading 6 min Views 383. Contents. Technical description and explained code P068A; ... Most PCM power circuits are relatively simple and straightforward. When the ignition is turned to the “ON” position, power is applied to the relay. ...Dec 16, 2020 · What Does Code P068A Mean? OBD II fault code P068A is a generic trouble code that is defined as “ECM/PCM Power Relay De-Energized Performance – Too Early”, and is set when the PCM (Powertrain Control Module) detects an improper de-energizing procedure for the relay that supplies it with power. While modern automotive control modules such ... Mercury Grand Marquis (2003 - 2011) Fuse Box Diagram. In this article you will find a description of fuses and relays Mercury, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for). Get tips on blown fuses, replacing a fuse, and more.As the world’s largest online retailer, Amazon has revolutionized the way we shop. But it’s not just consumers who benefit from Amazon’s services. The company also provides logisti...Chevrolet’s 4.3-liter Vortec V-6 engines incorporated one or two knock sensors. These sensors detected incorrect fuel-air mixture combustion in the cylinder. The knock sensor relay...Jan 7, 2016 · A bad PCM-power relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery Drain or Dead Battery. The final bad ECM relay symptom is a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the ... How do you know if a PCM relay is bad? There are a few signs that indicate a bad PCM relay. The most common symptom of a faulty PCM relay is engine stalling. Other symptoms include issues with the fuel pump, headlights, and power windows. If you suspect a bad PCM relay, testing it with a multimeter is the best way to confirm the issue.When a P0687 code is stored, it typically means that a high voltage condition has been detected by the powertrain control module (PCM) or one of the other controllers, in the circuit which powers up the PCM or the circuit by which the other controllers monitor PCM power supply voltage. Most OBD-II equipped vehicles use a contact relay to supply ...In the world of logistics and transportation, efficiency is key. Shippers and carriers are constantly looking for ways to streamline their operations and maximize productivity. One...A/C Relay: 3 — Wiper Hi/Lo Relay: 4 — PCM Power Relay: 5 — Fuel Pump Relay: 6 — Starter Relay: 7 — Horn Relay: 8 — Fog Lamp Control Relay: 9 — Blower Motor Relay: 10 — Foglamp Isolation Relay: 11 — Not Used: 12 — Not Used: 13 — Park Lamp/Trailer Tow Relay: 14 — Washer Pump Relay: 1 — RABS Resistor: 1 — RABS Diode: 2 ...Pivot tables are the quickest and most powerful way for the average person to analyze large datasets. Here’s how they came to be one of the most useful data tools we have. Pivot ta...Inspect the PCM power relay circuit. You should obtain a wiring diagram for the exact model year and engine combination for your Honda Element. Most PCM relay terminals have 5 pins (covered above in the definition section). Is the relay getting a constant power supply from the battery? If it is not, you will need to trace the harness …FORD F150 PCM RELAY, POWER TRAIN RELAY LOCATION REPLACEMENT F 150 ECU RELAY, ECM RELAY 2015 2016 201If you need to find the PCM relay, ECU relay, ECM, Powert...Locate fuse and relay. Fuse box diagram. Identifying and legend fuse box Mazda 3 (BL) 2008-2013. ... (80A) Power steering. F29 ... PCM. 38. ENG BAR 2. 20 A. PCM. 39. ETV. 15 A. Electric throttle valve. R2 . Fuel injector relay (L3 WITH TC) R3 . Headlight relay (LQ) R4 .Aug 4, 2023 · Ground for the pcm relay is supplied by the pcm pin 33brn/wht. Fuse 39 supplies power into the relay for both the coil and load (terminal 86 30) which should be hot at all times. Pcm pins 2 4 6 are ground from ground 103. Yes, I have 12v at 76 (12.6ish).Fuse 39 is good and has 12v . Other Names: Fuel Pump Relay, HVAC Blower Motor Relay, Horn Relay, Starter Relay, Accessory Power Relay, Powertrain Control Module Relay, Window... More Names Replaces: FOAZ-14N089-A, GU5Z-14N089-GFuel pump relay: R5 : Horn relay: R6 : PCM power relay . Power distribution box 1999-2003 Ford F150. Fuse box diagram (1999 model year). Assignment of the fuses (1999). Fuse/Relay. Location. Fuse Amp Rating. Description. 1. 25A * Power Point. 2. 30A* Powertrain Control Module. 3. 30A* Headlamps/Autolamps. 4. 15 A*. Air Suspension. 5.Order Ford F150 Relay - Powertrain Control Module online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store. skip to main content. 20% off orders over $100* + Free Ground Shipping** Eligible Ship-To-Home Items Only. Use Code: MAY2024 ...A: Powertrain Control Module (PCM) Power Relay A: Introduction Yes No GO to A2 . GO to A3 . Yes No GO to A3 . REPAIR as necessary. REFER to the Workshop Manual Section 414-00, Charging System. CLEAR the DTCs. REPEAT the self-test. Yes No GO to A4 . INSTALL a new PCM Power Relay. CLEAR the DTCs. REPEAT the self-test. Powertrain Control Module ...Oct 18, 2016 · Auxiliary relay box 4 is located behind left side of instrument panel. Relay box 5 Ford F150 1999-2003. Auxiliary relay box 5 is located behind right side of instrument panel. Bi-fuel relay module. Bi-fuel relay module is located in left rear of engine compartment. Primary battery fuses (megafuses) F150 1997-1998. In the world of logistics and transportation, efficiency is key. Shippers and carriers are constantly looking for ways to streamline their operations and maximize productivity. One...’06-’08: PCM relay coil: 13: 10: ... PCM power, Intake Manifold Runner Control (4.2L engine) 35: 20: Instrument cluster high beam indicator, High beam headlamps, DRL disable relay (’08) 36: 10: Trailer tow right turn/stop lamps: 37: 20: Rear power point, Center console power point (’07) 38: 25:GMC SIERRA ECU ECM PCM RELAY LOCATION 2007 2008 2009 2010 2011 2012 2013If you have GMC SIERRA and you want to see where the ECU ECM PCM relay, ECU ECM PCM ...The PCM Power Relay control solenoid receives power from the PCM Power Diode located in the Battery Junction Box for year 2000 or the Power Distribution Box for year 1996. Check the diode at both ends for battery voltage when the ignition switch is in On and Start. If the diode is blown replace it.6.4 Powerstroke pcm/Tcm diagnosing and troublesPOWERSTROKECUSTOMS.COM877-331 …Edge Member. 2. Posted August 11, 2017. I have a 2007 SEL and it has had this problem for the last few months. The PCM power relay ticks after you turn the key off. The TPS also ticks in time with the relay. Unplug the relay and plug it back in and it stops. I've researched this problem and have heard causes were anything from a weak ground to ...Import Direct Ignition 20 Amp 4 Terminal Multi-Purpose Relay - 25-0183. Shop for the best Powertrain Control Module Relay for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts.If a new or known-good relay is used and the circuit still isn't working, then you can determine if you need to proceed with further diagnosis and repair. O'Reilly Auto Parts carries brake relays, A/C relays, lighting relays, wiper relays, and more to help keep all of the electrical systems on your vehicle operating safely. Show More.Diagnostic code for P068A (Active/Static) ECM/PCM Power Relay. De-Energized Performance - Too Early. I have been trying to locate J271, which I believe is the power relay in question. The way I am looking at it, if it. had been the battery, then it would not have started after multiple tries.285K views 4 years ago. On this episode of Fear No Fix, Chris and ChrisFix team up to diagnose a PCM Relay issue and replace it in a 5.4L Ford F-150 (model …In the end, if you are not getting power to the fuel pump relay, in most cases, it’s either a bad fuse or a faulty ECM. So, that’s where you should start your investigation. Check all the fuses in the cabin fuse …Ground for the pcm relay is supplied by the pcm pin 33brn/wht. Fuse 39 supplies power into the relay for both the coil and load (terminal 86 30) which should be hot at all times. Pcm pins 2 4 6 are ground from ground 103. Yes, I have 12v at 76 (12.6ish).Fuse 39 is good and has 12v .The ASD relay is located in the Integrated Power Module (IPM), in the engine compartment. Refer to label on PDC cover for relay location. To test the relay see if this helps. When the PCM energizes the ASD and fuel pump relays, terminal 87 connects to terminal 30. This is the... - 2002-2008 Dodge Ram.FORD MUSTANG POWERTRAIN CONTROL MODULE RELAY LOCATION REPLACEMENT 2015 2016 2017 2018 2019 2020 2021 2022 2023If you need to replace Powertrain Control Modul...One of the most common symptoms of a faulty ECM/PCM power relay is engine stalling . If your engine stalls while driving or idling, it could be a sign that the power relay is failing. This is because the power relay is responsible for supplying power to the ECM/PCM, which controls the engine’s operation.Power of attorney is an agreement between two parties that lets one party (the agent) act in the place of another (the principal.) Although power of attorney doesn’t take away the ...Locate the PCM power relay and hold it in your fingers or listen with a stethoscope. If there is an audible click, when the ignition switch is turned on, begin testing with the PCM output terminal. Check for battery voltage at the primary input terminal of the PCM power relay. Consult the wiring schematic, connector view, or pin-out chart from ...New to the forum, and excited to be here! I have a 2008 F350 (6.4 model) and cannot connect with the PCM via scanner. Through troubleshooting, I have discovered the PCM is also not powering on (Relay 53 not getting close signal) If I jump Relay 53, the TCM powers on but this tells me I'm not getting a signal from the PCM to activate this relay.The 2010 Ford F-150 has 2 different fuse boxes: Passenger Compartment Fuse Panel diagram. Power Distribution Box diagram. Ford F-150 fuse box diagrams change across years, pick the right year of your vehicle: Passenger Compartment Fuse Panel. 48. P0690 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Sense Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 . P0690 Code: ECM/PCM Power Relay Circuit High. P0683 Code: Glow Plug Control Module to PCM Communication Circuit. P0689 Code: ECM/PCM Power Relay Sensor Circuit Low. P2509 Code: PCM Power Input Signal Intermittent. File Under : Maintenance, DIY Tagged With : engine-control-module. Subscribe. Notify of01-25-2011. 09-14-2004. Electrical Systems/Wiring - EEC Power Diode - In the process of trouble-shooting my electrical system (another story), I came across this power diode in the engine compartment fuse box. It appears to be in the circuit that activates the PCM power relay (in the same fuse box). I've always tested diodes by checking the...FORD F150 PCM RELAY, POWER TRAIN RELAY LOCATION REPLACEMENT F 150 ECU RELAY, ECM RELAY 2015 -2017. Free Car Repair. 19.7K … The fault code P0685 in an automobile can be caused by various factors. One possible cause is a weak battery, resulting in low voltage while cranking. Another potential cause is a faulty Engine Control Module (ECM) power relay or an open or shorted ECM power relay harness. Poor electrical connection in the ECM power relay circuit or a blown ECM ... BlueDriver. 71.4K subscribers. Subscribed. 1.6K. 285K views 4 years ago. On this episode of Fear No Fix, Chris and ChrisFix team up to diagnose a PCM Relay issue and replace it in a 5.4L Ford...

So far I've replaced 2 out of the 5 with the updated relays, the starter relay and ASD relay which should hopefully rectify issue for now. There's either 5 or 6 relays depending on spec and fuel type of the vehicle. Dealer wants £39.50 for 1 30A relay so I'll be ordering more from Alfa Workshop. Adc inmate lookup

pcm power relay

PCM Relay Coil, Ignition Coil (Gasoline only), Fuel Heater (Diesel only), Wastegate Solenoid (Diesel only), Injector Driver Module Relay Coil (Diesel only) 31 — Not Used: Relay 1 — Interior Lamp Relay: Relay 2 — Batteiy Saver Relay: Relay 3 — Rear Defroster: Relay 4 — Power Window One Touch Down Relay: Relay 5 — Accessory Delay RelayPower Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS) 9 ...The Power Relay is used to supply voltage to the PCM, in other words, it’s function is to deliver to the powertrain control module the adequate battery voltage needed for its operation. This contact type relay uses the traditional 5-wire design. The control circuit is activated by the ignition switch (pin 86) and the ground (pin 85).HONDA ACCORD POWERTRAIN RELAY LOCATION, PCM RELAY, POWER TRAIN MODULE RELAY 2008 2009 2010 2011 2012If you have Honda Accord and you want to see where the PC...3. Test the PCM Power Relay. If your Pilot won’t start and the relay is getting both power from the battery line and the keyed power (with a solid ground), it’s time to suspect the PCM power relay itself. Here’s a good video on how to test a relay. It’ll also give you a basic understanding of how they work if you’re having trouble ...Edge Member. 2. Posted August 11, 2017. I have a 2007 SEL and it has had this problem for the last few months. The PCM power relay ticks after you turn the key off. The TPS also ticks in time with the relay. Unplug the relay and plug it back in and it stops. I've researched this problem and have heard causes were anything from a weak ground to ...Fault code P068A – ECM/PCM power relay de-energized performance – too early. Author AutoNevod Reading 6 min Views 383. Contents. Technical description and explained code P068A; ... Most PCM power circuits are relatively simple and straightforward. When the ignition is turned to the “ON” position, power is applied to the relay. ...The third circuit is usually responsible for carrying a signal from the ignition switch. There’s a fourth wire that supplies voltage to the PCM when the relay is grounded and closes. If the PCM detects a high voltage condition on the power relay sense circuit, it will store the code P0690 and illuminate the check engine light.The P068A trouble code stands for “ECM/PCM Power Relay De-Energized Performance – Too Early.” This is an uncommon code, and it doesn’t appear on many vehicle code lists. Causes for the P2098 code include power control module (PCM) failure, a bad PCM power relay, or faulty PCM electrical wiring.P2510 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Sense Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ...3. Test the PCM Power Relay. If your Accord won’t start and the relay is getting both power from the battery line and the keyed power (with a solid ground), it’s time to suspect the PCM power relay itself. Here’s a good video on how to test a relay. It’ll also give you a basic understanding of how they work if you’re having trouble ...Learn what the PCM relay is, how it works, and what causes and symptoms of a failing PCM relay. Find out how to diagnose and fix the error code P0690 and other related codes that indicate a problem with the PCM power relay. Get paid cash for your vehicle if it's broken.A transmission relay is usually located in the power distribution box under the hood on the driver’s side of the vehicle. It is responsible for sending signals to the transmission ...PCM Power Relay. Relay . 31: Blower Motor Relay. Relay . 32: Two Speed Fuel Pump Relay [Gasoline only], Injector Driver Module Power Relay [Diesel only] Relay . 33: Washer Pump Relay. Relay . 34: Windshield Wiper Park/Run Relay. Relay . 35: Windshield Wiper HI/LO Relay. Diode ATO . 37: PCM Relay Diode. Relay . 38: Trailer Tow Backup Lamp ….

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