On cold winter day Bravo 1.4 tjet 110kw (-29c at night) lost some brake fluid and clutch pedal was on the floor at the morning. Concentric slave cylinder might have leaked those out. Thats mechanical fix
But... I heated up motor with electricity later that day and tried to start the car (as i did my other car - Stilo). Stilo was running good and started easily but Bravo started only few seconds and off... I tried again and same happened and after that not at all. Maybe something was smelling outside. Also immobiliser activated in some point.
Multiecuscan showed u1601 on Ecu, dashboard is saying "hillholder, esp, asr and one parking sensor fault". Body computer seems to ignore now Ecu as an canbus module and cant find it. Also bodycomputer has codes for missing ecu, sometimes abs, steering, yaw node and minicrypt.
Some fix & tests made:
- recharged battery, check grounds under bonnet and c038 next to airbag module.
- pushed inertia switch and disconnected it totally, but not effect
- proxi alingment with Multiecuscan, but doesnt find ecu and abs
- tried key update with Multiecuscan, but didn went through with electricCode.
- ordered green cable for abs-log in with multiecuscan
- checked fuses and relays beside battery
- cleaned connectors and checked wirings visually
- then canbus network testing: body computer has 44/45 wiring for highspeed canbus
and while doing resistance test it shows 120ohm when ecu is connected and while it is disconnected ohms change. But if abs-module is disconnected and ecu is connected - resistance from bodycomputer 44/45 is not 120ohm...multimeter showed open circuit resistance.
- metering in abs-connector (disconnected abs-module), ignition on, canbus lines to ground - other side is 3,2v/1,8v and towards ecu 0,2v and 0,3v ?
- If abs-module is disconnected, body computer finds powersteering module and yaw-module back with proxi alingment.
- I checked also wiring from abs-module to ecu a-connector 88/89 canbus pins.
- Supply power and grounds for ecu a-connector seems to work also and main relay t9 metered in fuse f17.
- printed all elearn wiring diagram for the start
After all I have thought that is it just because of hydraulic pressure plausibility in abs-control-module and next I need to bleed that brake-line. Seems that it somehow hold fluid now... Could that abs-unit stops the whole communication in that canbus-network ? But for some reason disconneting abs-unit wont bring ecu back... Or could that ecu burn out just like that?
But... I heated up motor with electricity later that day and tried to start the car (as i did my other car - Stilo). Stilo was running good and started easily but Bravo started only few seconds and off... I tried again and same happened and after that not at all. Maybe something was smelling outside. Also immobiliser activated in some point.
Multiecuscan showed u1601 on Ecu, dashboard is saying "hillholder, esp, asr and one parking sensor fault". Body computer seems to ignore now Ecu as an canbus module and cant find it. Also bodycomputer has codes for missing ecu, sometimes abs, steering, yaw node and minicrypt.
Some fix & tests made:
- recharged battery, check grounds under bonnet and c038 next to airbag module.
- pushed inertia switch and disconnected it totally, but not effect
- proxi alingment with Multiecuscan, but doesnt find ecu and abs
- tried key update with Multiecuscan, but didn went through with electricCode.
- ordered green cable for abs-log in with multiecuscan
- checked fuses and relays beside battery
- cleaned connectors and checked wirings visually
- then canbus network testing: body computer has 44/45 wiring for highspeed canbus
and while doing resistance test it shows 120ohm when ecu is connected and while it is disconnected ohms change. But if abs-module is disconnected and ecu is connected - resistance from bodycomputer 44/45 is not 120ohm...multimeter showed open circuit resistance.
- metering in abs-connector (disconnected abs-module), ignition on, canbus lines to ground - other side is 3,2v/1,8v and towards ecu 0,2v and 0,3v ?
- If abs-module is disconnected, body computer finds powersteering module and yaw-module back with proxi alingment.
- I checked also wiring from abs-module to ecu a-connector 88/89 canbus pins.
- Supply power and grounds for ecu a-connector seems to work also and main relay t9 metered in fuse f17.
- printed all elearn wiring diagram for the start
After all I have thought that is it just because of hydraulic pressure plausibility in abs-control-module and next I need to bleed that brake-line. Seems that it somehow hold fluid now... Could that abs-unit stops the whole communication in that canbus-network ? But for some reason disconneting abs-unit wont bring ecu back... Or could that ecu burn out just like that?
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