Oct 22, 2020 at 11:51 AM
No crank no start issue
2002 JEEP LIBERTY
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Update: Have not had an opportunity to get back to removing the crankshaft position sensor. Might be Saturday or Sunday before I can get on it.
No problem.
We will be here to help.
Roy
We will be here to help.
Roy
Oct 22, 2020 at 11:53 AM
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Got the crankshaft and camshaft sensors in... still cranks, won't start, tachometer and fuel gauges don't budge.. Think I may not have told you that when I'm not getting electricity to the new fuel pump. I had to rig up a bypass to the battery using an alternate fuse and relay.. so for some reason no current to fuel pump (without bypass) and injectors not coming on.
Oct 26, 2020 at 7:54 AM
Okay, I attached the wiring diagram of the system for you.
Check the fuses I circled as they are feeding the ASD relay. That is the relay that provides power to all the ignition components.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Roy
REMOVAL
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for relay location.
1. Remove PDC cover.
2. Remove relay from PDC.
3. Check condition of relay terminals and PDC connector terminals for damage or corrosion. Repair if necessary before installing relay.
4. Check for pin height (pin height should be the same for all terminals within the PDC connector). Repair if necessary before installing relay.
INSTALLATION
The ASD relay is located in the Power Distribution Center (PDC) Refer to label on PDC cover for relay location
1. Install relay to PDC
2. Install cover to PDC
Check the fuses I circled as they are feeding the ASD relay. That is the relay that provides power to all the ignition components.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Roy
REMOVAL
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for relay location.
1. Remove PDC cover.
2. Remove relay from PDC.
3. Check condition of relay terminals and PDC connector terminals for damage or corrosion. Repair if necessary before installing relay.
4. Check for pin height (pin height should be the same for all terminals within the PDC connector). Repair if necessary before installing relay.
INSTALLATION
The ASD relay is located in the Power Distribution Center (PDC) Refer to label on PDC cover for relay location
1. Install relay to PDC
2. Install cover to PDC
Oct 26, 2020 at 8:06 AM
Keep me updated.
Roy
Roy
Oct 26, 2020 at 8:16 AM
I only see 3 fuses circled. is that correct?
Oct 26, 2020 at 9:23 AM
That is correct.
Verify power on both sides of the fuses with the key on.
Roy
Verify power on both sides of the fuses with the key on.
Roy
Oct 26, 2020 at 1:48 PM
will do.
Oct 26, 2020 at 2:09 PM
Keep me updated on the results so we can get t the root cause of failure.
Roy
Roy
Oct 26, 2020 at 2:11 PM
Just checking in. had to start buckling down for TS Zeta that's headed our way, so it might be Thursday before I can run the checks.
Oct 27, 2020 at 11:27 AM
Okay, no worries.
Be safe.
Roy
Be safe.
Roy
Oct 27, 2020 at 12:47 PM
where is the actuator sensor?
I know where the camshaft sensor is, but not the actuator sensor.
I know where the camshaft sensor is, but not the actuator sensor.
Oct 28, 2020 at 8:42 AM
Do you want me to check the wiring on the actuator and camshaft sensors or is the video just a reference for how it's done?
Oct 28, 2020 at 8:47 AM
Confused.. it looks as though the fuses circled are 16, 26 and 6? (not clear).. the schematic I downloaded for the PDC layout says 16 is open, 26 is injectors and 6 is the ASD fuse. my concern is that 16 is open (no fuse) according to my download.
Oct 28, 2020 at 9:24 AM
What do you mean by the cam actuator? There is a sensor but no actuator listed.
Roy
Roy
Oct 28, 2020 at 9:26 AM
https://www.2carpros.com/articles/how-to-check-wiring
Oct 28, 2020 at 9:35 AM
The video says 2-wire actuator sensor and 3-wire cam sensor.
Oct 28, 2020 at 9:37 AM
Okay, I see. The video has some generic information.
You do not have an actuator on your car.
Roy
You do not have an actuator on your car.
Roy
Oct 28, 2020 at 9:43 AM
Okay, on the same web page, the PDC diagram for the optional diesel engine says 16 is an ASD Feed fuse. sounds like the diagrams may have been mis-labeled.
Oct 28, 2020 at 9:56 AM
I will check fuses Thursday late. When key is in on position should all the fuses and relays in the PDC have power?
Oct 28, 2020 at 11:56 AM
Yes, they should all have power on both sides of the fuse.
Roy
Roy
Oct 28, 2020 at 12:41 PM
Great, the reason I asked is that when I first started to fix it I checked fuses and relays and I know there were a couple that had no power.. they didn't appear to be blown. anyway, I plan to check the three you marked this evening.. Oh, we survived the storm, lost a few shingles and a tree, but no major damage....
Oct 29, 2020 at 11:51 AM
Good, glad you are safe.
Keep me updated.
Roy
Keep me updated.
Roy
Oct 29, 2020 at 11:59 AM
Didn't get to check fuses yesterday and probably won't today, so it'll be Saturday. Are you available on weekends?
Oct 30, 2020 at 7:11 AM
Yes, sir. I will be here for you.
Roy
Roy
Oct 30, 2020 at 7:19 AM
great. I hope to be able to check the fuses before noon Saturday.
Oct 30, 2020 at 8:05 AM
Okay, I am on 7 days a week for about 1- hours a day.
Roy
Roy
Oct 30, 2020 at 8:15 AM
Okay. Here's how things went with the fuse/relay check with key on:
Fuses: #24 Fuel Pump fuse...getting power (But I have no power at the fuel pump)
#26 Injectors. no power (note that the Starter Relay Fuse did not have power either, but the starter still works when key turned all the way)
#16 ASD Feed. no power.
Relays:
ASD has power to pins 30 & 86.
Fuel Pump Relay power to pins 30 & 86.
I also bought a new relay and put it in, but didn't help.
I also checked the clear-top weird looking fuses that dealt with ASD or ignition.
#8 Ignition/start. power.
#6 ASD. power.
#13 Ignition/windows. power.
#14 Ignition/switch. power.
Fuses: #24 Fuel Pump fuse...getting power (But I have no power at the fuel pump)
#26 Injectors. no power (note that the Starter Relay Fuse did not have power either, but the starter still works when key turned all the way)
#16 ASD Feed. no power.
Relays:
ASD has power to pins 30 & 86.
Fuel Pump Relay power to pins 30 & 86.
I also bought a new relay and put it in, but didn't help.
I also checked the clear-top weird looking fuses that dealt with ASD or ignition.
#8 Ignition/start. power.
#6 ASD. power.
#13 Ignition/windows. power.
#14 Ignition/switch. power.
Nov 2, 2020 at 7:35 AM
Pin 85 of the ASD relay is controlled by the ECM as in the diagram I sent you,
It also powers the other components that have no power.
From your readings, it looks like the ECM is the issue.
Roy
PROGRAMMING THE POWERTRAIN CONTROL MODULE
IMPORTANT NOTE: Before replacing the PCM for a failed driver, control circuit or ground circuit, be sure to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM driver/control circuit failures are caused by internal failure to components (i.e. relay and solenoids) and short circuits (i.e. 12-volt pull-ups, drivers and ground sensors). These failures are difficult to detect when a double fault has occurred and only one DTC has set.
Note: if the pcm and the skim are replaced at the same time, program the vin into the pcm first. All vehicle keys will then need to be replaced and programmed to the new skim.
The SKIS "Secret Key" is an ID code that is unique to each SKIS. This code is programmed and stored in the SKIM, PCM and transponder chip (ignition key). When replacing the PCM it is necessary to program the secret key into the PCM.
1. Turn the ignition ON (transmission in park/neutral)
2. Use the DRB III and select "THEFT ALARM", "SKIM" then "MISCELLANEOUS".
3. Select "PCM REPLACED".
4. Enter secured access mode by entering the vehicle four-digit PIN.
Note: if three attempts are made to enter the secure access mode using an incorrect pin, secured access mode will be locked out for one hour (the vehicle will still run). To exit the lockout mode, turn the ignition to the run position for one hour then enter the correct pin. (ensure all accessories are turned off. Also, monitor the battery state and connect a battery charger if necessary).
5. Press "ENTER" to transfer the secret key (the SKIM will send the secret key to the PCM).
PROGRAMMING THE SENTRY KEY IMMOBILIZER MODULE
Note: be sure to enter the correct country code. If the incorrect country code is programmed into skim, the skim must be replaced.
1. Turn the ignition ON (transmission in park/neutral).
2. Use the DRB III and select "THEFT ALARM", "SKIM", then MISCELLANEOUS.
3. Select "SKIM MODULE REPLACEMENT (GASOLINE)".
4. Program the vehicle four-digit PIN into the SKIM.
5. Select "COUNTRY CODE" and enter the correct country.
NOTE: BE SURE TO ENTER THE CORRECT COUNTRY CODE. IF THE INCORRECT COUNTRY CODE IS PROGRAMMED INTO SKIM, THE SKIM MUST BE REPLACED.
6. Select "UPDATE VIN" (the SKIM will learn the VIN from the PCM).
7. Press "ENTER" to transfer the VIN (the PCM will send the VIN to the SKIM).
PROGRAMMING THE IGNITION KEYS TO THE SENTRY KEY IMMOBILIZER MODULE
1. Turn the ignition ON (transmission in park/ neutral).
2. Use the DRB III and select "THEFT ALARM", "SKIM" then "MISCELLANEOUS".
3. Select "PROGRAM IGNITION KEYS".
4. Enter secured access mode by entering the vehicle four-digit PIN.
Note: a maximum of eight keys can be learned to each skim. Once a key is learned to a skim, it (the key) cannot be transferred to another vehicle.
If ignition key programming is unsuccessful, the DRB III will display one of the following messages:
Program Not Attempted
The DRB III attempts to read the programmed key status and there are no keys programmed in the SKIM memory.
Programming Key Failed
(Possible Used Key From Wrong Vehicle) - SKIM is unable to program key due to one of the following:
faulty ignition key transponder
ignition key is programmed to another vehicle.
8 Keys Already Learned, Programming Not Done
SKIM transponder ID memory is full.
1. Obtain ignition keys to be programmed from customer (8 keys maximum)
2. Using the DRB III, erase all ignition keys by selecting "MISCELLANEOUS" and "ERASE ALL CURRENT IGN. KEYS"
3. Program all ignition keys.
Learned Key In Ignition
Ignition key transponder ID is currently programmed in SKIM memory.
It also powers the other components that have no power.
From your readings, it looks like the ECM is the issue.
Roy
PROGRAMMING THE POWERTRAIN CONTROL MODULE
IMPORTANT NOTE: Before replacing the PCM for a failed driver, control circuit or ground circuit, be sure to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM driver/control circuit failures are caused by internal failure to components (i.e. relay and solenoids) and short circuits (i.e. 12-volt pull-ups, drivers and ground sensors). These failures are difficult to detect when a double fault has occurred and only one DTC has set.
Note: if the pcm and the skim are replaced at the same time, program the vin into the pcm first. All vehicle keys will then need to be replaced and programmed to the new skim.
The SKIS "Secret Key" is an ID code that is unique to each SKIS. This code is programmed and stored in the SKIM, PCM and transponder chip (ignition key). When replacing the PCM it is necessary to program the secret key into the PCM.
1. Turn the ignition ON (transmission in park/neutral)
2. Use the DRB III and select "THEFT ALARM", "SKIM" then "MISCELLANEOUS".
3. Select "PCM REPLACED".
4. Enter secured access mode by entering the vehicle four-digit PIN.
Note: if three attempts are made to enter the secure access mode using an incorrect pin, secured access mode will be locked out for one hour (the vehicle will still run). To exit the lockout mode, turn the ignition to the run position for one hour then enter the correct pin. (ensure all accessories are turned off. Also, monitor the battery state and connect a battery charger if necessary).
5. Press "ENTER" to transfer the secret key (the SKIM will send the secret key to the PCM).
PROGRAMMING THE SENTRY KEY IMMOBILIZER MODULE
Note: be sure to enter the correct country code. If the incorrect country code is programmed into skim, the skim must be replaced.
1. Turn the ignition ON (transmission in park/neutral).
2. Use the DRB III and select "THEFT ALARM", "SKIM", then MISCELLANEOUS.
3. Select "SKIM MODULE REPLACEMENT (GASOLINE)".
4. Program the vehicle four-digit PIN into the SKIM.
5. Select "COUNTRY CODE" and enter the correct country.
NOTE: BE SURE TO ENTER THE CORRECT COUNTRY CODE. IF THE INCORRECT COUNTRY CODE IS PROGRAMMED INTO SKIM, THE SKIM MUST BE REPLACED.
6. Select "UPDATE VIN" (the SKIM will learn the VIN from the PCM).
7. Press "ENTER" to transfer the VIN (the PCM will send the VIN to the SKIM).
PROGRAMMING THE IGNITION KEYS TO THE SENTRY KEY IMMOBILIZER MODULE
1. Turn the ignition ON (transmission in park/ neutral).
2. Use the DRB III and select "THEFT ALARM", "SKIM" then "MISCELLANEOUS".
3. Select "PROGRAM IGNITION KEYS".
4. Enter secured access mode by entering the vehicle four-digit PIN.
Note: a maximum of eight keys can be learned to each skim. Once a key is learned to a skim, it (the key) cannot be transferred to another vehicle.
If ignition key programming is unsuccessful, the DRB III will display one of the following messages:
Program Not Attempted
The DRB III attempts to read the programmed key status and there are no keys programmed in the SKIM memory.
Programming Key Failed
(Possible Used Key From Wrong Vehicle) - SKIM is unable to program key due to one of the following:
faulty ignition key transponder
ignition key is programmed to another vehicle.
8 Keys Already Learned, Programming Not Done
SKIM transponder ID memory is full.
1. Obtain ignition keys to be programmed from customer (8 keys maximum)
2. Using the DRB III, erase all ignition keys by selecting "MISCELLANEOUS" and "ERASE ALL CURRENT IGN. KEYS"
3. Program all ignition keys.
Learned Key In Ignition
Ignition key transponder ID is currently programmed in SKIM memory.
Nov 2, 2020 at 9:07 AM
I was afraid that was the issue. I appreciate your patience and help. I'll order a replacement and hopefully get it in this weekend.. again thanks.
Nov 2, 2020 at 10:50 AM
You are welcome.
Roy
Roy
Nov 2, 2020 at 10:54 AM
Any recommendation of PCM vendors? Did some looking last night.. Major auto parts stores sold out or don't carry them..
Nov 3, 2020 at 6:33 AM
Just to be clear before I order the PCM, I checked the ASD pins in the fuse box for power with the key on 86 and 30 had power, but 85 didn't, and you're saying there should also have been power to 85 with the key on even though the ASD Relay wasn't plugged into the fuse box?
Nov 4, 2020 at 6:27 AM
86 and 30 should have power.
85 will have power only with the relay plugged in and 85 is not grounded. If the pin is grounded, it will have 0 volts.
Does the relay click when you turn on the key?
Roy
85 will have power only with the relay plugged in and 85 is not grounded. If the pin is grounded, it will have 0 volts.
Does the relay click when you turn on the key?
Roy
Nov 4, 2020 at 6:30 AM
I'll check this afternoon.
Nov 4, 2020 at 8:49 AM
No, it'll be Thursday afternoon before I can check it. sorry
Nov 4, 2020 at 8:51 AM
No problem. We will be here.
Roy
Roy
Nov 4, 2020 at 9:01 AM
Okay, using jump wires I tested ASD relay plugged in and not plugged in...The relay is good, can here it clicking.. Using a jump wire, when relay is plugged into fuse box, and key is turned to crank position, I get power at Pins 30, 87 and and 86...but not 85. 85 doesn’t get power in any situation, except when I take the relay out of the fuse box and wire the relay directing to 12V source with a toggle switch. so, I assume the conclusion is that the PCM is bad and should be replaced?
Nov 7, 2020 at 10:59 AM
85 is powered by 86 and becomes a ground in the ECM.
Yes, I agree the ECM is the issue.
Roy
Yes, I agree the ECM is the issue.
Roy
Nov 7, 2020 at 11:04 AM







