Interesting Problem - OBDII Causing No Start
Thread Starter
|
New User
Joined: May 2022
Posts: 3
Likes: 0
Interesting Problem - OBDII Causing No Start
Hi all, I've been posting over at Sporstmobile Forum- a van specific page, but figured you all might be able to help. I have an '01 7.3 E350 California Van w/ 80,000 on the clock.
It runs and drives perfectly until I remove the scan gauge plugged into the OBDII port. Then it stalls. Without the scangauge plugged in, it will crank but not start. The actually gauge does not need to be plugged in for the van to start, only the OBDII connector.
I plugged in an edge CTS3 into the OBDII port and it still isn't starting. What could the scangauge plug be doing to make the van start, but not the EDGE CTS3?
I'm getting the four following codes:
PO562 - If the vehicle voltage level dips below 10.0 volts for 60 seconds or more while at idle, the PCM will store the code.
PO603 - The P0603 code indicates that yourPowertrain Control Module (PCM) has failed its own Keep Alive Memory (KAM) self-test.
P1000 - engine control computer (ECC) has not completed its emission systems testing.
P1316 - Injector Driver Module (IDM) Codes Detected.
Thank you all, I appreciate your help!
It runs and drives perfectly until I remove the scan gauge plugged into the OBDII port. Then it stalls. Without the scangauge plugged in, it will crank but not start. The actually gauge does not need to be plugged in for the van to start, only the OBDII connector.
I plugged in an edge CTS3 into the OBDII port and it still isn't starting. What could the scangauge plug be doing to make the van start, but not the EDGE CTS3?
I'm getting the four following codes:
PO562 - If the vehicle voltage level dips below 10.0 volts for 60 seconds or more while at idle, the PCM will store the code.
PO603 - The P0603 code indicates that yourPowertrain Control Module (PCM) has failed its own Keep Alive Memory (KAM) self-test.
P1000 - engine control computer (ECC) has not completed its emission systems testing.
P1316 - Injector Driver Module (IDM) Codes Detected.
Thank you all, I appreciate your help!
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Do any or all of these codes repopulate after clearing them? As long as the PCM maintains power the codes can be stored indefinitely. So depending on the last time they were scanned and cleared we have no way of knowing when they actually occurred.
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Is the dongle a Bluetooth type or corded to another device? Three of your codes can be linked to battery voltage more specifically power loss to the PCM. You might start with checking connections for all fuses related to the PCM plus the relays for the PCM and IDM. Not sure how accessible it is on the vans but checking the PCM connector where it passes through the firewall couldn't hurt either.
Thread Starter
|
New User
Joined: May 2022
Posts: 3
Likes: 0
It's corded. I'll check those fuses, and the PCM connector.
It seems odd that it would be a fuse when it starts up perfectly with the scan gauge OBDII plugged in, but not with the EDGE OBDII connector plugged in.
It seems odd that it would be a fuse when it starts up perfectly with the scan gauge OBDII plugged in, but not with the EDGE OBDII connector plugged in.
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,086
Likes: 4,697
From: Henderson, NV
@udsuth78 , the Scangauge II has its own OBD II plug on a cord.
@maxswasser , I am surprised you are able to pull codes with the Scangauge II. Mine is not capable of pulling any codes from the truck. Just to clarify, starting with the key completely removed from the ignition, if the Scangauge II’s connector is not plugged into the van’s OBD II port the engine will crank but not start when you turn the key to start? When you say only the Scangauge II’s connector needs to be plugged in and not the gauge itself, you’re referring to the cord with the OBD II connector on one end and something like a ethernet connector on the other? Has it always been like this? Was there a time nothing was plugged into the OBD II port and the van started and ran fine?
At first blush, it sounds like you may have some damaged CANbus wiring that the OBD II connector is acting like a bandaid for. I will have to look at the manual to see what your issue might be.
Paging our resident van expert @FinnishStroker
@maxswasser , I am surprised you are able to pull codes with the Scangauge II. Mine is not capable of pulling any codes from the truck. Just to clarify, starting with the key completely removed from the ignition, if the Scangauge II’s connector is not plugged into the van’s OBD II port the engine will crank but not start when you turn the key to start? When you say only the Scangauge II’s connector needs to be plugged in and not the gauge itself, you’re referring to the cord with the OBD II connector on one end and something like a ethernet connector on the other? Has it always been like this? Was there a time nothing was plugged into the OBD II port and the van started and ran fine?
At first blush, it sounds like you may have some damaged CANbus wiring that the OBD II connector is acting like a bandaid for. I will have to look at the manual to see what your issue might be.
Paging our resident van expert @FinnishStroker
Trending Topics
Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
I'm no good with electrical problems or body work.
Keep that connector plugged in and rock on..?
Measure voltages from OBD port pins?
Keep that connector plugged in and rock on..?
Measure voltages from OBD port pins?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post