04-17-2020, 01:35 PM | #1 |
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Multiple errors in DME. Drivetrain malfunction car cannot be restarted.
Hello All,
I am experiencing a no start issue with my X50i 2015. The engine cranks but does not start. The center console displays a drivetrain malfunction. I cleared the errors with an Autel scanner but they returned. I am yet to do an inspection of fuses or wirings. Dashboard also shows an ambient temperature of -40 deg F. The errors when I scan the DME shows a lot of 'short circuit to ground' Diagnosis > Drive > Engine-DME Digital Motor Electronics 1. 102A01 Hot film air mass meter, signal: Electrical fault Intermittent 2. 10B101 Outside temperature sensor, electrical: Short circuit to B+ Intermittent 3. 10B104 Outside temperature sensor, signal: CAN message faulty Intermittent 4. 113027 Ignition relay and injectors, supply voltage, fuel injection: Line disconnection Intermittent 5. 12B102 Oxygen sensor heating before catalytic converter, activation: Short circuit to ground Intermittent 6. 130002 VANOS solenoid valve, inlet, activation: Short circuit to ground Intermittent 7. 130202 VANOS solenoid valve, exhaust , exhaust, activation: Short circuit to ground Intermittent 8. 133102 Valvetronic relay, activation: Short circuit to ground Intermittent 9. 133104 Valvetronic relay, activation: Line disconnection Intermittent 10. 135B10 Valvetronic servomotor, activation, voltage phase: Line disconnection Intermittent 11. 135B12 Valvetronic servomotor, activation, watt phase: Line disconnection Intermittent 12. 191002 Tank vent valve, activation: Short circuit to ground Intermittent 13. 191004 Tank vent valve, activation: Line disconnection Intermittent 14. 1B5202 Supply, terminal 15N_1: Short circuit to ground Intermittent 15. 1B5302 Supply, terminal 15N_2: Short circuit to ground Intermittent 16. 1B5402 Supply, terminal 15N_3: Short circuit to ground 17. 1D2402 Map thermostat, activation: Short circuit to ground Intermittent 18. 1F0515 Valvetronic, supply voltage: Line disconnection Intermittent 19. 1F4A02 Relay, ignition and injectors, activation: Short circuit to ground Intermittent 20. 1F4A10 Relay, ignition and injectors, activation: Line disconnection Any help on what might be the problem? |
04-17-2020, 01:43 PM | #2 |
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Check to see if all connectors to affected dme (bank1 or bank2) are secure and not loose.
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04-17-2020, 05:09 PM | #5 |
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Bad connection, or bad harness (as in a physical short). Did you drive the vehicle through standing water, had a recent accident or where you working on the car recently. These cars are not just going to develop a problem like that sitting in the garage. The errors are repeated and self evident. You have a bad connection to ground, therefor the electronics cannot complete the circuit.
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04-18-2020, 11:31 AM | #7 |
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I recommend checking the main ground strap which on the E70 (pretty sure F15 is the same) is located drivers side next to from differential/steering. You can see it when underneath or when you pull the front drivers side wheel. These are notorious for corroding and breaking, causing all kinds of electrical gremlins. There is also another in rear of the truck up around the rear differential/muffler area
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04-18-2020, 10:08 PM | #8 |
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Trying to troubleshoot this vehicle without knowing any of the history is a fools errand. An newer vehicle isn't going to kick those kinds of errors out of thin air. There must be some underlying issue that led to the car erroring out.
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04-19-2020, 02:54 AM | #9 | |
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04-19-2020, 02:57 AM | #10 |
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Thank you. My worry though is it could it be a DME problem? I find it a bit confusing because I can read codes out of it successfully. I am still looking around for any apparent circuit breakage.
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04-19-2020, 09:43 AM | #11 |
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What is the recent history of this vehicle? These types of errors don't happen without an underlying condition.
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04-19-2020, 10:26 AM | #13 |
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The vehicle was parked for a couple of months. Batteries are completely drained out. Primary and Auxiliary batteries. Will try trickle charging the batteries first and then see if that works. I ran checks with a jump cable connected to another battery. Probably not the best way to go.
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04-19-2020, 10:31 AM | #14 |
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04-19-2020, 10:36 AM | #15 | |
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04-19-2020, 02:03 PM | #16 |
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Ok now we are getting some information. What damage was incurred in this 'minor collision'/ Front, back, repair professionally or by the owner?
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04-19-2020, 02:51 PM | #17 |
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04-21-2020, 04:25 PM | #18 | |
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On another note, everything seems to be pointing to the Integrated Supply Module or its connection with the DME and DME2. I will get those checked and see if that resolves the problem. Thanks |
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04-21-2020, 06:07 PM | #19 | |
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Isn't there a battery cable or fuse that blows in an accident? |
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04-21-2020, 07:28 PM | #20 | |
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04-25-2020, 01:32 PM | #21 | |
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The issue was Fuse F503 in Fuse box Z3 in the trunk. Somehow, the fuse had gone out and was not supplying any power to the ISM. I did a quick bypass of this fuse and the vehicle started. Did a diagnostic check again and most of the errors have cleared. I will need to get a replacement for the fuse in the long term. |
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04-25-2020, 01:35 PM | #22 |
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