In this video, I find a common ground wire that was broken or had a bad connection and was able to repair it and it took care of all the diagnostic trouble codes on this dodge Patriot.
2007 Caliber 2.0
2008 Caliber 2.0
2007 Caliber 2.4
2007 Patriot 2.4
Customer Concern: Trouble codes P0647, P2010 and P0032 are setting. The Air Conditioning (A/C) does not work.
Average Reported Mileage: 120075
Tests/Procedures: 1. These circuits share a common ground. If the ground is missing/poor, circuit high trouble codes will set.
2. Inspect the Z916 ground circuit (Black or Black/White wire) to the G110 ground. G110 ground is located on the right frame rail just ahead or below the washer reservoir. If the ground is poor/missing, add a redundant ground using a jumper wire and test for further problems.
In this video will be diagnosing a cylinder misfire on a Cadillac DeVille 4.6 L Northstar motor. I will show you how to identify which cylinder is misfiring if you have a random cylinder misfire P0300 and once you find out what cylinder is misfiring I will also show you how to find out what’s causing the misfire.
Will be swapping spark plugs will be swapping ignition coils and watching the misfire graph on the scan tool to see if the misfire Falls the ignition coil or spark plugs. Also, show you how to pull fuel injectors with the GM Factory scan tool.
Hope this video was helpful if it was be sure to hit the Thumbs Up Button And subscribe to my channel thanks for watching
In this video, I will go over diagnostic trouble codes that are very common to the GM and Chevy 3.6 l V6 engine. They’re all timing related codes and the most common cause for it is a timing chain to stretch over time or for the timing chain tensioners to go bad.
In some instances, these codes can also be caused by low or dirty oil or a plugged or failed valve timing solenoid when should be always be checked first.
GM has extended the warranty on their timing chains to 120000 Miles and 10 years.
Customer Concern: Engine Control Module (ECM) DTC P0008, P0009, P0016, P0017, P0018, P0019 The engine has a surging, fluctuating idle. All 6 DTCs reset at the same time.
Average Reported Mileage: 89737
Tests/Procedures: 1. Remove the Crankshaft Position (CKP) Sensor.
2. Using a boroscope, inspect the crankshaft reluctor.
3. Refer to pictures in PIP3423C for illustrations for the position of the reluctor vs the counterweights.
4. If a boroscope is not available, removal of the oil pan will be required.
5. If the crankshaft is OK, check the timing chains.
6. Refer to GM 11340C, Special Policy that will warranty the timing chain for 10 years or 120,000 miles.
Tech Tips: Refer to GM PIP3423C; for 2007 Buick and Cadillac refer to 07-06-01-013B; for 2007 GMC, Pontiac and Saturn refer to 07-06-01-014.
In this video, I go into detail on why a p0445 large evap system leak sets and hoe the gas vapor system works and why it will set a p0455.
There are a number of different reasons that could cause a p0455 and the #1 reason being the evap vent valve and they are pretty easy to test. In this video, I will be testing the vent valve and the
evap purge valve with a power probe http://amzn.to/2FN2r70
I will active them with the power probe then blow into them to make sure they are sealing properly. And if they don’t that will be the cause of your large EVAP leak. The vent valve is very common and I hope this video helps a few people save a little money on their auto repair bills. Thanks for watching the Fate Rate Mechanic.
DTC P0741: Torque Converter Clutch Hydraulic Circuit Stuck OFF
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information.
1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
3. Drain the ATF through a strainer. Inspect the strainer for metal debris or excessive clutch material.
Does the strainer have metal debris or excessive clutch material?
YES – Replace the transmission.
NO – Replace the ATF, then go to step 4.
4. Turn the ignition switch ON (II).
5. Clear the DTC with the HDS.
6. Choose Lockup Solenoid Test in Miscellaneous Test Menu, and check that the torque converter clutch solenoid valve operates with the HDS.
Is a clicking sound heard?
YES – Go to step 7.
NO – Replace the torque converter clutch solenoid valve, then go to step 11.
7. Choose Clutch Pressure Control (Linear) Solenoid C in Miscellaneous Test Menu, and test A/T clutch pressure control solenoid valve C with the HDS.
Is the result NORMAL?
YES – Go to step 8.
NO – Follow the instructions indicated on the HDS by the test result, but the tester has not determined the cause of the failure, go to step 11. If any part was replaced, go to step 12.
8. Run the engine until the ECT SENSOR value reaches 176°F (80°C).
9. Test-drive the vehicle at 55 mph (88 km/h) for 2 minutes while monitoring the vehicle speed with the HDS.
10. Monitor the OBD STATUS for P0741 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES – Repair faulty torque converter clutch mechanism, torque converter clutch hydraulic circuit, lock-up shift valve, or the lock-up control valve, or replace the transmission.
NO – Intermittent failure, the system is OK at this time. If the screen indicates NOT COMPLETED, go to step 9.
11. Inspect A/T clutch pressure control solenoid valve C.
Does A/T clutch pressure control solenoid valve C work properly?
YES – Repair the hydraulic system related with the lock-up shift valve, the lock-up control valve, and the lock-up timing valve, or replace the transmission, then go to step 12.
NO – Replace the A/T clutch pressure control solenoid valve C, then go to step 12.
12. Turn the ignition switch ON (II).
13. Clear the DTC with the HDS.
14. Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.
15. Check for DTCs with the HDS.
Is DTC P0741 indicated?
YES – Go to step 7.
NO – Go to step 16.
16. Monitor the OBD STATUS for P0741 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES – Troubleshooting is complete. If any other DTCs were indicated in step 15, go to the indicated DTC’s troubleshooting.
NO – If the screen indicates FAILED, go to step 7. If the screen indicates NOT COMPLETED, go to step 14.
Okay in this video I will explain what a flashing d means on your shift indicator and what you should do to fix it.
If you have a flashing D on your shift indicator that typically means you have a transmission problem and you will need to get it scanned for diagnostic trouble codes.
Depending on what transmission codes you have stored will determine your next course of action. Feel free to list what codes you have in your Honda in the comments below.
Vehicle Application:
2001 Accord 2.3
Customer Concern: The check engine light is on with a code P0128 for cooling system performance problem.
Average Reported Mileage: 106000
Tests/Procedures: 1. Verify the thermostat is operating correctly, the Engine Control Module (ECM) determines actual engine coolant temperature by the run time of the engine and is watching the Engine Coolant Temperature (ECT) sensor to determine if the engine is warming up fast enough.
2. If the ECT sensor and thermostat is functioning correctly, then follow Honda TSB # 01-064 for a updated ECM for this code.
Tech Tips: If someone starts the vehicle and has the heat on high on a cold day the engine will take longer to warm up and the code may set. I believe the ECM software was revised so it does not expect the engine to warm up as fast.
Tests/Procedures: 1. Let the vehicle get cold and use a scan tool and verify the initial engine coolant temperature is between 20 and 95 degrees F and the initial intake air temperature is also between 20 and 95 degrees F. The difference between initial engine coolant temperature and initial intake air temperature should be a maximum of 3 degrees. Intake air temperature 2 seconds after starting the engine must be nearly equal to initial intake air temperature. Then start the engine and let it idle. Drive the vehicle at a speed between 25 – 55 mph (40 – 88 km/h) for at least 10 minutes.
. If you have difficulty duplicating the DTC, retest after turning off electrical components such as the audio system and A/C,
and try a different gear position.
. Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
2. Verify the engine is getting warmed up (above 158 degrees F) in a reasonable amount of time. Given the drive cycle to see if the code resets, look for the engine temperature to reach the estimated engine coolant temperature of about 172 degrees in about 10 minutes of driving.
3. Feel if the lower radiator hose is getting hot indicating the thermostat opened and that there is circulation in the cooling system.
Tech Tips: If the actual engine coolant temperature is below the estimated engine coolant temperature (as estimated by the ECM), a malfunction in the thermostat valve is detected and a DTC P0128 is stored. Malfunction Threshold
. The ECT sensor output is 158ºF (70ºC) or less, and an estimated engine coolant temperature is 172ºF (78ºC) or more.
. The difference between the estimated engine coolant temperature and the ECT sensor output is 27ºF (15ºC) or more.
The TSB for an updated ECM is for 2000-2001 models only.
OK, we are working on a honda civic hybrid with some high voltage battery codes along with some charging system problems with the accessory battery. This video is packed with some great diagnostic info on these honda civic hybrid system with trouble codes P1570 or P0A7F
Vehicle Application:
2006 Civic 1.3
2007 Civic 1.3
2008 Civic 1.3
2009 Civic 1.3
Customer Concern: The check engine light and IMA light are on with code P0A7F, indicating the High Voltage (HV) battery module has deteriorated.
Average Reported Mileage: 140294
Tests/Procedures: 1. Refer to Honda Technical Service Bulletin (TSB) 09-025. This code indicates the High Voltage (HV) battery is failing and will need to be replaced. Then the vehicle will need to be reflashed. Also, Honda has extended the warranty on the battery, refer to TSB 12-077.
2. Perform AR&D Battery Test to locate the weak battery cell.
Vehicle Application:
2003 Civic 1.3
2004 Civic 1.3
2005 Civic 1.3
2006 Civic 1.3
2007 Civic 1.3
2008 Civic 1.3
Customer Concern: The check engine light is on and there is a code P1570 indicating a code for the HV battery individual voltage problem.
Average Reported Mileage: 110373
Tests/Procedures: 1. To properly test this code you will need the correct scan tool to look at the HV battery blocks and look for a voltage difference. Honda has a High failure rate on the HV battery and has extended the warranty.
Okay, Flat Rate Mechanic here today we’re going to be diagnosing our check engine light and a battery light on this 2006 Honda Civic Hybrid.
We’ve got a couple of stored codes. We have a p1570and a p0a7f which are both pertaining to the high voltage battery pack for this hybrid. So basically we’re gonna go in, I have the factory Honda scan tool hooked up to this right now.
We’re going to go ahead and connect to this vehicle. We’re going to pull codes and take a look at the high voltage battery cells to see If we have a bad cell. If we do we’re going to have to replace it. I’m gonna show you where the high voltage battery pack is, how to turn it on and off.
I also did a little research on this. I’ll give you some diagnostic tips that I found on Identifix. There’s also an updated warranty information I will give you towards the end of this video. They have extended the warranty on high voltage batteries. They’re having a lot of problems with them.
So I’m all into the scan tool here, we’re gonna go ahead and access the electronic powertrain. From here we will go ahead and go to the data list. We’re gonna see if we can look at the voltages in this battery pack and make sure all the cells are functioning properly. This is a pretty easy check to do if you have a scan tool that can read engine data.
Go down to IMA battery module one two three all the way up to 11 and we’re just looking at these voltages. They’re all about 15 volts so that’s actually not looking that bad and that’s all normal at the moment in my opinion. Probably what I’m gonna do next is do a starting and charging system test.
On the test drive, I also had a battery light on on the dash, so I’m gonna go ahead do it starting and charging test make sure to the DC to DC converter is charging the 12-volt accessory battery.
If all that tests well I’m probably gonna come back and revisit this high voltage battery and take a little deeper dive into this and see if I can see any problems with that.
All right um let’s take a look at some of this information that I pulled. Like I said extending the warranty on this. Honda has a high failure rate on HP battery and has extended its warranty. Here is the extended warranty information. It looks like they’ve extended it 11 years 170,000 miles years 162,000 miles.
So pretty good coverage as far as this high voltage battery goes but I’m suspecting this vehicle is not gonna need that. I think we have a charging problem. Well, I guess where this is a hybrid, this car does not have an alternator it just has a DC to DC converter that charges a battery with the high voltage battery.
Where we have a battery light on in the dash I’m definitely suspecting we got a charging problem. I’m going to go underneath the hood here in a minute and test that but I want to show a few pictures of where the battery is located and also where the DC to DC converter is located.
Where is the high voltage battery and the DC to DC converter?
It’s going to be behind the rear seat. You’re going to have your switch and access panel to the right you have to remove the bolt and you can shut it off all power to the rest of the system from the high voltage battery. Witch you will always want to do before any testing or servicing.
To service this module as you can see there’s an access panel behind the rear seat that is gonna be removed to get to the high voltage battery and the DC converter. It’s fairly easy to access.
We’re gonna go under the hood here and see if we’re getting voltage to this accessory battery. As you can see on our battery tester we’re only on 11.6 volts which just means this battery is discharging right now, it’s not charging. So I’m suspecting we have a DC to DC converter issue.
I’m going to access the DC to DC converter and make sure all of the connections are tight and clean. If all that checks out pretty good this car is going to need a DC to DC converter.
Also when I was looking at the service information I was also able to find that they’re having issues too. The is a service bulletin on the wires getting pinched in the rear trunk and there’s is a hundred amp fuse that blows when this happens so we’re gonna check that as well, once we get the rear seat taken out.
I’m suspecting, in this case, but probably not every case this high voltage battery pack is gonna be OK. We’re gonna go after the DC to DC converter.
Okay so I want to take a second look at this voltage and it’s continuing to drop so I’ve determined that this thing definitely needs a DC to DC converter in order to get this axillary battery charging again. We’re also gonna put a new battery in this as it was also testing bad.
I’ll also leave some other diagnostic information and some tips and tricks on how to diagnose these HV or high voltage batteries on this hybrid Honda Civics. Seems like they’re starting to be pretty big issues as these vehicles get of age. Typically 180 to 200 thousand miles.
Vehicle Application:
2008 EX35 3.5
2009 EX35 3.5
2010 EX35 3.5
2004 G35 3.5
2005 G35 3.5
2006 G35 3.5
2007 G35 3.5
2008 G35 3.5
2003 I35 3.5
2004 Altima 3.5
2003 Maxima 3.5
2004 Maxima 3.5
2004 Quest 3.5
Customer Concern: Setting codes P0011 and P0021 for Intake Valve Timing (IVT) control.
Average Reported Mileage: 102846
Tests/Procedures: 1. Check the engine oil level and condition. If the engine oil is low, it could set these codes.
2. If the oil is good, check for power on the Red/Yellow wire bank 1 and an on/off signal at 2000 RPM on the Red wire. On bank 2, check the Red wire for power and the Green wire for the on/off signal when the engine is a revved to 2000 RPM.
3. If the signal is good, then the Engine Control Module (ECM) is trying to control the camshaft timing. Manually ground the signal wires to see if a change in the way the engine idles can be heard. If so, the solenoids are working. If not, the solenoids could be stuck.
4. The resistance of the IVT solenoids is 7.5 ohms at 70°F.
Tech Tips: The Engine Control Module (ECM) sends on/off pulse signals to the camshaft timing control valve, depending on driving status.
Customer Concern: Malfunction Indicator Lamp (MIL) on. Powertrain Control Module (PCM) DTC P0171.
Average Reported Mileage: 100343
P0171 p0174 System Lean Trailblazer “Fixed with no parts”
Tests/Procedures: 1. Check for a vacuum leak by spraying water around the engine and see if it reacts.
2. At the Mass Air Flow (MAF) sensor connector locate, backprobe and ground the Yellow wire. Reset fuel trims using the scanner and see if Long Term Fuel Trim (LTFT) stay in single digits.
3. Access the fuel system test port, near the fuel tank and fuel filter.
4. Connect a pressure gauge to the port.
5. Fuel pressure should be steady at all loads, 50-57 PSI.
6. Verify that the fuel pressure value is between the range of 50-57 and not dropping under load.
