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I have fh12 volvo420 autometick display showing check brake ECU at next stop

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Posted on Jan 02, 2017

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SOURCE: Volvo FH12 2005 truck display shows Engine ECU Failure. what is the reason for this? please tell me in detail.

ECU is like your mother board and inside there is a PROM which is coded for your cars engine type and size etc. This prom keeps the systems as they should be like during warm up highway driving etc. Takes info from all the systems and makes fuel mixture, timing, and other adjustments to keep the car running correctly.Your prom needs replacing I think. This has to be done very carefully, Maybe best to take it to a shop.

Hope this helps Mike

Posted on Apr 20, 2016

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Volvo FH12 2005 truck display shows Engine ECU Failure. what is the reason for this? please tell me in detail.


ECU is like your mother board and inside there is a PROM which is coded for your cars engine type and size etc. This prom keeps the systems as they should be like during warm up highway driving etc. Takes info from all the systems and makes fuel mixture, timing, and other adjustments to keep the car running correctly.Your prom needs replacing I think. This has to be done very carefully, Maybe best to take it to a shop.

Hope this helps Mike

Apr 20, 2016 | Volvo Cars & Trucks

1 Answer

I have a 1993 Toyota corolla. I am trying to figure out what the different fuse names are such as the "IGN 10A, STOP 15A, S-HTR 20A, ECU-B 10A, ECU-IG 15A


Ign is for ign , stop is for brake lights, s heater is for blower motor, ecu is for computer, ecu ign is for distributor, are you looking for a specific problem

Apr 04, 2015 | 1993 Toyota Corolla

1 Answer

How do I determine if an ABS sensor is bad on a 1995 chevy corsica


ABS sensor has nothing to do with the restriction of the brake oil supply. It merely tells the ECU whether the wheel is spinning or stopped at all when the car is moving.
Check:
- Pull up the ABS diagnostic error codes.
- Brake hose attached to the caliper for swollen or clogged.
- Check brake pipe from the skid control ECU to front wheel.
- Check the caliper assembly.

Mar 08, 2014 | 1994 Chevrolet Corsica

1 Answer

I have a 05 neon that wont shift out of second gear. When I first crank and drive runs fine when I break or stop check engine comes on. I can reset it then it will shift but after five minutes light comes...


It could be due to malfunction of brake paddle switch. you have to check brake paddle switch. if brake paddle switch get choked it can be happen due to Peddle switch gives signal to ECU as a vehicle stopped.

Apr 15, 2013 | Cars & Trucks

2 Answers

Fault codes on a volvo FH12 rear left lights stay on


Volvo has had a lot of trouble with relays in the rear control module. Check/replace the relays for the rear lights with the updated relays.

Mar 20, 2010 | 2004 Volvo XC70

2 Answers

Volvo s80 2.9 brake failure stop safely asap , srs


Try removing the battery for half an hour or so and then reconnecting (check you have all your radio codes etc before you do this).

Jan 09, 2010 | 1999 Volvo S80

1 Answer

Brake pedal judder on 1996 audi a4 when slowing


Have the rotors turned or the discs cut means the same thing either way but yes your disc.

Dec 02, 2009 | 1996 Audi A4

1 Answer

Check engine light and esc light comes on no driving power


Replace the brake/stop lamp switch at the brake pedal, also check for trouble codes. Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on. You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any codes which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE and perhaps eventually fix the problem.

Oct 14, 2009 | 2006 Hyundai Sonata

1 Answer

Park brake light flashes 10 times. For 1989 Chevy 1500 pickup. What does this mean?


This truck probably has Rear Wheel Anti-Lock (RWAL) brakes. There is a small black module near master cylinder that is the brain for this system. There are ways to check for diagnostic trouble codes in this system. Once you have any codes set, diagnosis can be fairly simple. PROCEDURE:
Diagnostic Trouble Codes (DTC) 's can be displayed by jumping terminals "A" and "H" of the Data Link Connector and observing the flashing of the "BRAKE" warning light. This should only be done when the brake lamp is "ON".
The terminals must be jumped for about 20 seconds before the code will begin to flash. Count the number of short flashes starting from the long flash. Include the long flash as a count. Sometimes the first count sequence will be short. However, subsequent flashes will be accurate. If there is more than one failure, only the first recognized code will be retained and flashed.

NOTES:
DTC's 6, 9 and 10 will only turn the "BRAKE" lamp on while the fault exists. These are soft codes faults and can only be read with the Tech 1 scan tool.
Do not jump terminals "A" to "H" if the "BRAKE" lamp is not on. Jumping the terminals with the "BRAKE" lamp off will set a false DTC 9. This will turn the "BRAKE" lamp on and disable the antilock system.

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  • 1, 11, & 12 ECU Malfunction
  • 2 Open Isolation Valve or Malfunctioning ECU
  • 3 Open Dump Valve or ECU Malfunction
  • 4 Grounded Antilock Valve Reset Switch
  • 5 Eccessive Actuations of the Dump Valve
  • 6 Erratic Speed Signal
  • 7 Shorted Isolation Valve or Faulty ECU
  • 8 Shorted Dump Valve or Faulty ECU
  • 9 Open Circuit to Speed Signal
  • 10 Brake Lamp Switch Circuit
  • 13, 14 and 15 ECU Malfunction
  • Sep 29, 2009 | 1989 Chevrolet C1500

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