Hello,
I've been having intermittent starting issues with my Audi A4. The engine cranks but doesn't start. So far, I've been able to start it eventually and once it gets running everything is fine. The scan log lists the problems below, but scans at different times/mileages can vary. The "001672 - ECM Power Relay Load Circuit: (J271)" fault is there pretty much every time, but sometimes it is replaced by random cylinder misfire faults (at low RPM 0-500 RPM, i.e. during startup). The ABS fault seems to appear only if I've kept the ignition switch at "power on" for about 30 seconds before trying to crank and is accompanied by the corresponding warnings in the instrument cluster (ABS and stability control both). These disappear from the cluster upon restart. Sometimes I get an ECM - immobilizer communication fault in the log (sorry I don't have that log right now, so no code) and the "012423 - Voltage Supply Relay for Engine Components " is frequent but not there all the time. Finally, from time to time portions of the alphanumeric display in the instrument cluster are dimmer (i.e. sections of the OK symbol, low fuel, the CD/radio information etc. display). So there seems to be some lose connection somewhere (the J271 relay?), but why does the problem only happen on startup? Any pointers would be greatly appreciated. People have suggested fuel pump issues as the cause the "crank but doesn't start" problem, but given the codes below, we should probably rule problems with the fuel system out.
Regards,
Hristo
I've been having intermittent starting issues with my Audi A4. The engine cranks but doesn't start. So far, I've been able to start it eventually and once it gets running everything is fine. The scan log lists the problems below, but scans at different times/mileages can vary. The "001672 - ECM Power Relay Load Circuit: (J271)" fault is there pretty much every time, but sometimes it is replaced by random cylinder misfire faults (at low RPM 0-500 RPM, i.e. during startup). The ABS fault seems to appear only if I've kept the ignition switch at "power on" for about 30 seconds before trying to crank and is accompanied by the corresponding warnings in the instrument cluster (ABS and stability control both). These disappear from the cluster upon restart. Sometimes I get an ECM - immobilizer communication fault in the log (sorry I don't have that log right now, so no code) and the "012423 - Voltage Supply Relay for Engine Components " is frequent but not there all the time. Finally, from time to time portions of the alphanumeric display in the instrument cluster are dimmer (i.e. sections of the OK symbol, low fuel, the CD/radio information etc. display). So there seems to be some lose connection somewhere (the J271 relay?), but why does the problem only happen on startup? Any pointers would be greatly appreciated. People have suggested fuel pump issues as the cause the "crank but doesn't start" problem, but given the codes below, we should probably rule problems with the fuel system out.
Regards,
Hristo
Code:
Saturday,11,October,2014,15:00:12:61059
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.3.0
Data version: 20140905
VIN: WAUDF78E57A113517 License Plate:
Mileage: 213030km-132370mi Repair Order:
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Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
67 69 75 76 77
VIN: WAUDF78E57A113517 Mileage: 213030km/132370miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 8E0 910 115 P HW: 8E0 907 115 D
Component: 2.0l R4/4V TFSI 0020
Revision: 5EH14--- Serial number:
Coding: 0104010A180F0120
Shop #: WSC 08286 444 59089
VCID: 2E531084B9F9C66E391-807B
2 Faults Found:
001672 - ECM Power Relay Load Circuit: (J271)
P0688 - 002 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 13
Reset counter: 255
Mileage: 208620 km
Time Indication: 0
Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 56.0∞C
Temperature: 51.0∞C
Absolute Pres.: 1010.0 mbar
Voltage: 0.000 V
012423 - Voltage Supply Relay for Engine Components
P3087 - 002 - Electrical Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 212809 km
Time Indication: 0
Freeze Frame:
RPM: 238 /min
Load: 65.1 %
Speed: 0.0 km/h
Temperature: 57.0∞C
Temperature: 51.0∞C
Absolute Pres.: 1010.0 mbar
Voltage: 10.922 V
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-910-517.clb
Part No SW: 8E0 910 517 J HW: 8E0 614 517 BH
Component: ESP8 quattro H06 0140
Revision: 00000000 Serial number: 00000000000000
Coding: 0004526
Shop #: WSC 06325 000 00000
VCID: 2E531084B9F9C66E391-807B
1 Fault Found:
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 1
Fault Frequency: 1
Reset counter: 38
Time Indication: 0
Freeze Frame:
Hex Value: 0x0080
Hex Value: 0x0722
Hex Value: 0x0013
Hex Value: 0x8595
Hex Value: 0x0001